ANNUAL REPORT

1999 -- 2000

Preface
This report documents the many varied activities of the Department of Mathematics during the Year 1999-2000; the actual reporting period represented here is from July 1, 1999 to June 30, 2000. I would like to thank Dean Herbert Burhenn and Provost Bill Berry for their help and support in this my first year at UTC. I would also like to thank my colleagues in the Mathematics Department for their support and encouragement this year. Finally, I wish to thank our Secretary Karen Young without whom the Department would not "function."

John R. Graef, Head


TABLE OF CONTENTS


DEPARTMENT OVERVIEW

The Department of Mathematics at the University of Tennessee at Chattanooga offers the Bachelor of Arts (B.A.) and the Bachelor of Science in Applied Mathematics (B.S.) degrees. There are several different options under the B.S. in Applied Mathematics program not commonly found at all undergraduate institutions including concentrations in Actuarial Science, Computer Science, Corporate Science, and Systems Science. These concentrations require that the student take specific courses in disciplines outside the Department in addition to their Mathematics courses. For example, under the Corporate Science option, students must take courses in Accounting, Economics, Finance, Management, and Marketing.

The Department is the second largest credit hour producer in the University. During the 1999 Summer, 1999 Fall, and 2000 Spring Semesters the Department generated a total of 15,782 Semester Credit Hours (SCH). In order to put this figure in perspective, it should be noted that this represents 7.1% of the University total SCH and 12.4% of the College of Arts and Sciences SCH during the same time period. Moreover, this level of SCH production represents 53.4% of the SCH produced by the College of Business Administration, 45.8% of the SCH produced by the College of Education & Applied Professional Studies, 148.8% of the SCH produced by the College of Engineering & Computer Science, and 84.6% of the SCH produced by the College of Health & Human Services in this same time period.

This year saw many changes in the Mathematics Department the most significant of which were in the area of curriculum. Beginning with the 1999 Fall Semester, the new University General Education requirements went into effect. In preparation for these changes, the Department spent many months during the 1998--99 Academic Year revising several lower level service courses including the Calculus sequence. Changes were also made in other introductory level courses that resulted in the introduction of the new courses Math 123, 131, and 144. More details can be found in the section on Curriculum.

A new Department Head was hired in August of 1999 and some new activities in the areas of student relations were initiated. In addition, new efforts were made to attract more Mathematics majors and minors (see the section on Students below).

The Department had an outstanding year in research: 3 books appeared in print, 76 papers appeared in print or were accepted for publication in refereed journals, and another 15 papers were submitted for publication. Even when adjusted to account for some of the papers being jointly authored by more than one member of the Department, the numbers (67 and 15) are still quite impressive for a Department the size of the one at UTC. Of the twenty-four full time faculty members in the Department, thirteen had at least one paper appear in print or be accepted for publication during 1999-2000. In addition, faculty delivered a total of 24 presentations at professional meetings and invited colloquium lectures. Such a research output compares very favorably with Mathematics Departments at other universities that offer graduate programs.

The Department has been very active in its outreach activities. As can be seen from the sections on Grants and Contracts and Other Professional Activities below, faculty in the Department of Mathematics conduct workshops and provide other support activities for area school teachers. Some of these activities have received funding from outside agencies. It should be kept in mind that such activities also serve as valuable recruiting techniques for the Department and the University.

Personnel:

In 1999-2000 there were twenty-four full time faculty in the Department of whom 20 hold the Ph.D. degree. One faculty member, Kozubowski, was on leave-without-pay the whole year and Miller was on educational leave for the Spring Semester. John Gordon, Martha Wayland, and Terry Williams were hired on one year appointments. Pete Caithamer was reappointed as an Assistant Professor, Chris Mawata was promoted from Associate Professor to Professor, and Tom Kozubowski and Steve Xu were awarded tenure. Steve Kuhn's application for Sabbatical Leave for the 2001 Spring Semester was approved. John Graef was appointed Professor and Head of the Department effective August 1, 1999. A complete list of faculty and staff is as follows:

Awards and Honors:


STUDENTS

The Department currently has 36 undergraduate majors enrolled in either the B.S. or B.A. program. There are also 35 Mathematics Education majors, and 14 Post-baccalaureate students are pursuing licensure in Secondary Mathematics. These last two groups are particularly important because Mathematics Education majors take the same courses designed for Mathematics majors but only three fewer hours. There are also currently 29 undergraduate students who are minoring in Mathematics.

Recruiting: Additional efforts were made this year to attract more Mathematics Majors and Minors. A flier describing the additional requirements needed for Engineering, Computer Science, Chemistry, and Physics majors to minor in Mathematics was circulated to those respective departments as well as to students currently enrolled in Mathematics courses. A copy of this flier appears as Appendix A in this report.

For more than 25 years the Mathematics Department has been administering the regional test for the Tennessee Mathematics Teachers Association's (TMTA) annual mathematics contest. This year the contest took place on March 21. More than 350 of the brightest students from Hamilton and five neighboring counties competed at five levels of mathematical ability: Algebra I, Algebra II, Geometry, Advanced Topics I, and Advanced Topics II. The top ten finishers in the region in each of the five levels, and the top ten finishers in Advanced Topics I and Advanced Topics II at the state level, were sent letters informing them of some of the opportunities available at UTC and inviting them to visit the campus.

Advising: At the beginning of the 1999 Fall Semester, letters were written to all undergraduate Mathematics majors informing them of the name of their advisor for the 1999--2000 Academic Year. A list of Mathematics Education majors and a list of students who are pursuing licensure in Secondary Mathematics were obtained from the College of Education and Applied Professional Studies. All of these students were also assigned a Mathematics advisor, and letters were written to inform them of the name of their assigned advisor. This procedure will continue to be used in the future.

Student Activities: In an effort to more actively involve undergraduate majors in the both the social and academic life of the Department, the Department Student Relations Committee, Chaired by Irene Loomis and composed of faculty members ( Mayme Kay Banasiak, Pete Caithamer, Billy Edwards, Aimee Ellington, Stephen Kuhn, Marti Wayland, Terry Williams and students (Jeremy Higdon, Eric Rymer, Jud Laman) sponsored several activities for students this year. These included hosting a pizza party at the start of the Fall Semester and inviting the students to a holiday luncheon in the Department at the end of the Fall Semester. The Committee also hosted a reception in honor of the graduating seniors at the end of the Spring 2000 Semester. Students were appointed to other committees in the Department including the Colloquium Committee (Yung-Ju Jeong ) and the Curriculum committee (Oloko Akintoye).

Student Awards and Honors:
Each year the Department makes a number of awards to deserving undergraduate students. These awards are presented at Honors Day. The recipients for 2000 are:

A Mathematics major, Ryan Chamberlain, passed the first actuarial exam on his first attempt; this is a significant accomplishment. Ryan is enrolled in the Actuarial Science Concentration in the B.S. in Applied Mathematics program.

Student Research::

Degrees Awarded:
The following students were awarded degrees in Secondary Mathematics Education during 1999--2000: Lakesha Carson, Kristen Clounch, Kellye Creech, Charlotte Purkey, Kendal Shipley, Erika Vonpeters, and Karen Wolfe.

Alumni Notes:


CURRICULUM

Among the many changes in lower level course offerings, the most significant one is the Calculus sequence. The new courses Math 151: Calculus I and Math 152: Calculus I Laboratory correspond to the previous Math 150: Calculus and Analytic Geometry. Math 151 is a three hour lecture course while Math 152 is a two contact hour one credit hour laboratory.Similar statements hold for Math 161/162, i.e., Calculus II. The laboratory courses Math 152 and 162 are taught in the Department's computer lab and make extensive use of the software package Maple. The laboratory projects are designed by the faculty members teaching the courses; this requires a great deal of time and effort on their part.

Changes were also made in a number of other Mathematics courses in order to ensure that they satisfy the requirements to be a General Education course. These courses are Math 123, 131, 136, 144, 145, and 210.

The Department Curriculum Committee (Boris Belinskiy, Betsy Darken, Steve Kuhn (Chair) , Chris Mawata, Gene Schlereth, Oloko Akintoye (student)) are charged with reviewing and making recommendations for possible changes in the undergraduate curriculum for both the B.A. and B.S. degrees. This review is expected to take two years.


RESEARCH AND CREATIVE ACTIVITIES

The research interests of the faculty span the range from abstract to applicable to applied. The faculty collaborate with other mathematicians from the United States as well as from China, the Czech Republic, France, Hungary, India, Japan, Russia, and Slovakia. Models describing the growth of certain animal populations, the spread of infectious diseases, wave phenomena, acoustic scattering, underwater imaging, manufacturing systems, industrial pollution emission control, random oscillations of mechanical systems, and financial data are among the many applications studied by members of the Department. The remainder of this section documents the various research activities of the Department in 1999--2000.

Books:

A. Jerald P. Dauer

  1. "Elements of Control Theory," with K. Balachandran, Narosa Publishing House, London, 1999.
B. Yongzhi Xu
  1. "Recent Developments in Complex Analysis and Computer Algebra," with R. P. Gilbert and J. Kajiwara, Kluwer Academic, 1999.
  2. "Direct and Inverse Problems of Mathematical Physics," with R. P. Gilbert and J. Kajiwara, Kluwer Academic, 2000.

Papers Appeared in Print:

A. Boris Belinskiy

  1. Wave phenomena in a wave guide with elastic walls: abstract differential equation formulation, with J. P. Dauer, in: Volterra Equations and Applications, ed. C. Corduneanu and I. W. Sandberg, Gordon and Breach Science Publishers, Amsterdam, 1999, 149--155.
  2. Existence and uniqueness for boundary value contact problems, with I. V. Andronov, in: Partial Differential and Integral Equations, H. G. W. Begehr et al. (eds.), Kluwer Academic Publishers, 1999, 287--301.
  3. Eigenvalue problems for elliptic type partial differential operators with spectral parameter contained linearly in boundary conditions, in: Partial Differential and Integral Equations, H. G. W. Begehr et al. (eds.), Kluwer Academic Publishers, 1999, 319--333.
  4. The reality of fluid wave resonance frequencies on a cylindrical shell , with J. P. Dauer and H. Uberall, Acta Mechanica 141 (2000), 117--123.
  5. Exponential mixture representation of geometric stable densities , with T. Kozubowski, Journal of Mathematical Analysis and Applications 246 (2000), 465--479.
B. Peter Caithamer
  1. On the distribution of self-similar stochastic processes defined by double Wiener-Ito integrals , Radovi Matematicki 9 (1999).
C. Jerald P. Dauer
  1. Wave phenomena in a wave guide with elastic walls: abstract differential equation formulation , with B. Belinskiy, in: Volterra Equations and Applications, ed. C. Corduneanu and I. W. Sandberg, Gordon and Breach Science Publishers, Amsterdam, 1999, 149--155.
  2. Bicriteria programming with several modern applications , with Y. H. Liu, Computers and Industrial Engineering 37 (2000), 563--580.
  3. The reality of fluid wave resonance frequencies on a cylindrical shell , with B. Belinskiy and H. Uberall, Acta Mechanica 141 (2000), 117--123.
  4. Controllability of neutral functional integrodifferential systems in Banach spaces , with K. Balachandran, Computers and Mathematics with Applications 39 (2000), 117--126.
D. Aniekan Ebiefung
  1. Information technology outsourcing decision analysis: analytic hierarchy approach , with G. Udo, in: Information Technology Outsourcing Decision Analysis: Analytic Hierarchy Approach, Proceedings of the 30th Annual Meeting of the Decision Sciences Institute.
  2. The vertical linear complementarity problem associated with po-matrices , Optimization Methods and Software 10 (1999), 747--761.
  3. Human factors affecting the success of advanced manufacturing systems , with G. Udo, Computers and Industrial Engineering 37 (1999), 297--300.
  4. An industrial pollution emission control model , with G. Udo, Computers and Industrial Engineering 37 (1999), 371--374.
E. Aimee Ellington
  1. The research backs calculators , with D. J. Dessart and C. M. DeRidder, Mathematics Education Dialogues, National Council of Teachers of Mathematics 2 (1999), 6.
F. John R. Graef
The majority of the work for those items followed by "*" was completed prior to the author's arrival at UTC.)
  1. Oscillation of a higher order neutral difference equation with a forcing term}, with M. M. S. Manuel, P. W. Spikes, and E. Thandapani, International Journal of Mathematics and Mathematical Sciences 22 (1999), 147--154. *
  2. Oscillatory behavior of solutions of Volterra summation equations , with E. Thandapani, Applied Mathematics Letters 12 (1999), 79--84.*
  3. On a nonlinear boundary value problems for fourth order equations , with B. Yang, Applicable Analysis 72 (1999), 439--448.*
  4. Global dynamics of a SEIR model with varying total population size , with J. Karsai, M. Y. Li, and L. Wang, Mathematical Biosciences 160 (1999), 191--213.*
  5. Review of "Global Behavior of Nonlinear Difference Equations of Higher Order with Applications" by V. L. Kocic and G. Ladas , Mathematical Intelligencer 21 (1999), 60--61.*
  6. Global stability in a nonlinear difference equation , with C. Qian, Journal of Difference Equations and Applications 5 (1999), 251--270.*
  7. Oscillation of two dimensional difference systems , with C. Qian and E. Thandapani, Computers and Mathematics with Applications 38 (1999), 157--165.*
  8. Oscillatory and asymptotic behavior of solutions of third order delay difference equations , with E. Thandapani, Funkcialaj Ekvacioj 42 (1999), 355--369.*
  9. Existence and nonexistence of positive solutions of fourth order nonlinear boundary value problems , with B. Yang, Applicable Analysis 74 (2000), 201--214.
  10. On the phase volume method for nonlinear difference equations , with J. Karsai and M. Y. Li, International Journal of Differential Equations and Applications 1 (2000), 17--35.*
  11. Behavior of solutions of impulsively perturbed non--halflinear oscillator equations , with J. Karsai, Journal of Mathematical Analysis and Applications 244 (2000), 77--96.
  12. Global attractivity in differential equations with variable delays , with C. Qian, Journal of the Australian Mathematical Society Series B: Applied Mathematics 41 (2000), 568--579.*
  13. A note on the existence of oscillatory solutions of higher order neutral differential equations , with B. Yang and B. G. Zhang, Acta Scientiarum Mathematicarum, 66 (2000), 63--70.
  14. Behavior of solutions of perturbed quasilinear difference equations , with R. Arul, P. W. Spikes, and E. Thandapani, Communications in Difference Equations (2000), 45--58.*
  15. A generalization of the Milloux--Hartman theorem for nonlinear systems , with J. Karsai and M. Y. Li, Communications in Difference Equations (2000), 203--214.*
G. Tomasz Kozubowski
  1. Tails of Levy measure of geometric stable random variables , with K. Podgorski and G. Samorodnitsky, Extremes 1 (1998), 367--378.
  2. Univariate geometric stable distributions , with S. T. Rachev, Journal of Computational Analysis and Applications 1 (1999), 177--217.
  3. Multivariate geometric stable distributions , with S. T. Rachev, Journal of Computational Analysis and Applications 1 (1999), 349--385.
  4. Multivariate geometric stable distributions in financial applications , with A. K. Panorska, Mathematical and Computer Modeling 29 (1999), 83--92.
  5. Geometric stable laws: estimation and applications , Mathematical and Computer Modeling 29 (1999), 241--253.
  6. Simulation of geometric stable and other limiting multivariate distributions arising in random summation scheme , with A. K. Panorska, Mathematical and Computer Modeling 29 (1999), 255--262.
  7. A class of asymmetric distributions , with K. Podgorski, ARCH Research Clearing House 1 (1999), 113--134.
  8. Geometric stable laws through series representations , with K. Podgorski, Serdica Mathematical Journal 25 (1999), 241--256.
  9. Asymmetric Laplace distributions , with K. Podgorski, Mathematical Scientist, 25 (2000), 36--45.
  10. Computer simulation of geometric stable distributions , Journal of Computational and Applied Mathematics 116 (2000), 221--229.
  11. Exponential mixture representation of geometric stable densities , with B. P. Belinskiy, Journal of Mathematical Analysis and Applications 246 (2000), 465--479.
H. Christopher Mawata
  1. Determination of a distributed inhomogeneity in a two-layered waveguide from scattered sound , with R. P. Gilbert and Y. Xu, in: "Direct and Inverse Problems of Mathematical Physics," edited by R. P. Gilbert, J. Kajiwara, and Y. Xu, Kluwer Academic Publishers, 2000, 107--123.
I. Ronald Smith
  1. Path Product Matrices , with C. R. Johnson, Journal of Linear and Multilinear Algebra 46 (1999), 177--191.
  2. The general totally positive matrix completion problem with few unspecified entries , with S. M. Fallat and C. R. Johnson, Electronic Journal of Linear Algebra 7 (2000), 1--20.
  3. The positive definite completion problem relative to a subspace , with C. R. Johnson, Linear Algebra and Its Applications 307 (2000), 1--14.
J. Yongzhi Xu
  1. Inverse acoustic scattering problems in ocean environments , Journal of Computational Acoustics 7 (1999), 111--132.
  2. Inverse scattering method for imaging objects in ocean environments , in: Proceeding of PIEMA99, Clermont-Ferrand, France, (1999).
  3. An inverse problem for the quasistatic thermoelastic system on the unit disk , Applicable Analysis (Special Issue on Dr. H. Begehr's 60th Birthday), 73 (1999), 295--305.
  4. The unidentified object problem in a shallow ocean with a fluid-like sediment layer overlying a rigid seabed , with J. Buchanan, R. P. Gilbert, and A. Wirgin, Applicable Analysis (Special Issue on Dr. H. Begehr's 60th Birthday), 73 (1999), 5--17.
  5. Identification of acoustically soft solids of revolution in a waveguide using the ICBA method , with J. Buchanan, R. P. Gilbert, and A. Wirgin, in: Analytical and Computational Methods in Scattering Theory and Applied Mathematics, F. Santosa and I. Stagold (eds.), CRC Press LLC, 1999, 27--36.
  6. Determination of a distributed inhomogeneity in a two-layered waveguide from scattered sound , with R. P. Gilbert and C. Mawata, in: "Direct and Inverse Problems of Mathematical Physics," edited by R. P. Gilbert, J. Kajiwara, and Y. Xu, Kluwer Academic Publishers, 2000, 107--123.
Papers Accepted for Publication:

A. Boris Belinskiy

  1. Heat distribution in a room with partially insulated walls , with J. Hiestand, Applicable Analysis, to appear.
  2. Wave propagation in the ice-covered ocean wave guide and operator polynomials , Proceedings of the Second ISAAC Congress, to appear.
  3. Mathematical aspects of wave phenomena in a wave guide with elastic walls and operator polynomials , with J. Dauer, Chapter 5 in Festschrift Volume II: Propagations, Ocean Acoustics and Scattering, dedicated to H. Uberall, World Scientific Publishing Company, to appear.
B. Betsy Darken
  1. Evaluating calculus reform: a review and a longitudinal study , with S. Kuhn and R. Wynegar, Research in Collegiate Mathematics Education, CBMS Issues in Mathematics Education, American Mathematical Society, Providence, to appear.
C. Jerald P. Dauer
  1. Existence of solutions of nonlinear neutral integrodifferential equations in Banach spaces , Journal of Mathematical Analysis and Applications, to appear.
  2. Mathematical aspects of wave phenomena in a wave guide with elastic walls and operator polynomials , with B. Belinskiy, Chapter 5 in Festschrift Volume II: Propagations, Ocean Acoustics and Scattering, dedicated to H. Uberall, World Scientific Publishing Company, to appear.
D. John R. Graef (The majority of the work for those items followed by "*" was completed prior to the author's arrival at UTC.)
  1. Asymptotic behavior of solutions of differential equations with variable delays , with C. Qian and B. Zhang, Proceedings of the London Mathematical Society, to appear.*
  2. On L2 solutions of third order nonlinear differential equations , with M. Bartusek, Dynamic Systems and Applications, to appear.*
  3. Oscillatory and asymptotic behavior of fourth order nonlinear delay difference equations , with E. Thandapani, Fasciculi Mathematici, to appear.*
  4. Oscillation theorems for general quasilinear second order difference equations , with E. Thandapani and K. Ravi, Computers and Mathematics with Applications, to appear. An invited paper for the special issue: "Advances in Difference Equations III."*
  5. Nonoscillation results for nonlinear systems with nondecreasing energy , with J. Karsai and B. Yang, Dynamics of Continuous, Discrete and Impulsive Systems, to appear.*
  6. Global attractivity of the equilibrium of a nonlinear difference equation , with C. Qian, Czechoslovak Mathematical Journal, to appear.*
  7. On the oscillation of impulsively damped halflinear oscillators , with J. Karsai, Electronic Journal of Qualitative Theory of Differential Equations, to appear.
E. Tomasz Kozubowski
  1. Asymmetric Laplace laws and modeling financial data , with K. Podgorski, Stable Models in Finance, Vol 2, (eds. S. Mittnik and S. T. Rachev), Pergamon Press, to appear.
  2. A multivariate and asymmetric generalization of Laplace distribution , with K. Podgorski, Computational Statistics, to appear.
F. Stephen Kuhn
  1. Evaluating calculus reform: a review and a longitudinal study , with B. Darken and R. Wynegar, Research in Collegiate Mathematics Education, CBMS Issues in Mathematics Education, American Mathematical Society, Providence, to appear.
G. Christopher Mawata
  1. Generalized dual space indicator method for underwater imaging , with W. Lin and Y. Xu, in Inverse Problems, (Special Issue for Inverse Problems in Underwater Acoustics), to appear.
  2. Generalized dual space indicator method for imaging obstacles in a homogeneous medium , with W. Lin and Y. Xu, Proceedings of the Second ISAAC Congress, Kluwer Academic Publishers, to appear.
H. Ronald Smith
  1. Line insertions in totally positive matrices , with C. R. Johnson, Journal of Approximation Theory, to appear.
I. Robert Wynegar
  1. Evaluating calculus reform: a review and a longitudinal study , with B. Darken and S. Kuhn, Research in Collegiate Mathematics Education, CBMS Issues in Mathematics Education, American Mathematical Society, Providence, to appear.
J. Yongzhi Xu
  1. A mode-matching method for forward and inverse scattering from an object in a shallow-water waveguide , with J. Buchanan, P. Cristini, R. P. Gilbert, and A. Wirgin, Proceeding of ICTCA'99, to appear.
  2. Generalized dual space indicator method for underwater imaging , with C. Mawata and W. Lin, in Inverse Problems, (Special Issue for Inverse Problems in Underwater Acoustics), to appear.
  3. Generalized dual space indicator method for imaging obstacles in a homogeneous medium , with C. Mawata and W. Lin, Proceedings of the Second ISAAC Congress, Kluwer Academic Publishers, to appear.
  4. Continuity and determination of parameters for quasistatic thermoelastic system , with M. He, Proceedings of the Second ISAAC Congress, Kluwer Academic Publishers, to appear.
  5. Determination of a buried object in a two-layered shallow ocean , with R. P. Gilbert and M. Wirby, J. of Computational Acoustics, to appear.
Papers Submitted for Publication:

A. Boris Belinskiy

  1. Optimal control of an elastic string with a viscous damping, with S. Lenhart, to appear.
  2. On uniqueness of the solution for the diffraction problem on an infinite plate with local non-homogeneities, with I. V. Andronov, to appear.
  3. Acoustic scattering from an elastic plate supported by a rigid narrow rib, with I. V. Andronov, to appear.
  4. Uniqueness and non-uniqueness for boundary contact value problems, with I. V. Andronov, to appear.
  5. Asymptotics of eigenfrequencies and eigenmodes of non-homogeneous in-extensible filament loaded at one end, with M. A. Shubov, to appear.
B. John R. Graef
The majority of the work for those items followed by "*" was completed prior to the author's arrival at UTC.)
  1. Positive solutions of a boundary value problem for fourth order nonlinear differential equations, with B. Yang, to appear.*
  2. Some new results and open problems on oscillation of nonlinear difference equations, with L. Ramuppillai and E. Thandapani, to appear.*
  3. Forced oscillation of second order linear and half-linear difference equations, with O. Dovsly and J. Jarovs, to appear.
C. Tomasz Kozubowski
  1. An Asymmetric multivariate Laplace distribution, with K. Podgorski, to appear.
  2. A new measure of local dependence, with I. Bairamov and S. Kotz, to appear.
  3. Maximum entropy characterization of asymmetric Laplace distribution, with S. Kotz and K. Podgorski, to appear.
  4. On the vertical density of the multivariate exponential power distribution, to appear.
D. Yongzhi Xu
  1. A simple method for object detection in a shallow water waveguide, to appear.
  2. A mode-matching method for forward and inverse scattering from an object in a shallow-water waveguide, with J. Buchanan, P. Cristini, R. P. Gilbert, and A. Wirgin, to appear.
  3. Generalized dual space indicator method for inverse scattering problems in underwater acoustics, to appear.
Papers Presented at Professional Meetings:

A. Boris Belinskiy

  1. Acoustic excitation of Scholte-Stoneley and Lamb waves on a reinforced cylindrical shell, with J. Dauer, A. Gerard, O. Poncelet, and H. Uberall, an invited talk presented at the Fourth International Conference on Theoretical and Computational Acoustics, in Stazione Marittima, Trieste, Italy, 1999.
  2. Stochastic integral equations and random oscillations of mechanical systems, with P. Caithamer, presented at the 105th Annual Meeting of the American Mathematical Society, in Washington, D. C., January 19--22, 2000.
  3. Uniqueness and non-uniqueness for boundary-contact value problems of acousto-elastic scattering, with I. V. Andronov, presented at the symposium ``Theory of Partial Differential Equations and Special Topics of Theory of Ordinary Differential Equations, dedicated to the 150-th anniversary of the birthday of Sofia V. Kovalevskaya, in St. Petersburg, Russia, 2000.
  4. Energy of a mechanical system driven by gaussian noise white in time, with P. Caithamer, presented at the Year 2000 International Conference on Dynamical Systems and Differential Equations, held at Kennesaw State University, Kennesaw, Georgia, May 18--21, 2000.
B. Peter Caithamer
  1. Stochastic integral equations and random oscillations of mechanical systems, with B. Belinskiy, presented at the 105th Annual Meeting of the American Mathematical Society, in Washington, D. C., January 19--22, 2000.
  2. Energy of a mechanical system driven by gaussian noise white in time, with B. Belinskiy, presented at the Year 2000 International Conference on Dynamical Systems and Differential Equations, held at Kennesaw State University, Kennesaw, Georgia, May 18--21, 2000.
C. Jerald Dauer
  1. Acoustic excitation of Scholte-Stoneley and Lamb waves on a reinforced cylindrical shell, with B. Belinskiy, A. Gerard, O. Poncelet, and H. Uberall, an invited talk presented at the Fourth International Conference on Theoretical and Computational Acoustics, in Stazione Marittima, Trieste, Italy, 1999.
D. Aniekan Ebiefung
  1. Information Technology Outsourcing Decision Analysis: Analytic Hierarchy Approach presented at the 30th Annual Meeting of the Decision Sciences Institute, in New Orleans, Louisiana, November 20--23, 1999.
E. John R. Graef
The majority of the work for those items followed by "*" was completed prior to the author's arrival at UTC.)
  1. Nonoscillatory behavior of solutions of impulsive systems with increasing energy, with J. Karsai and B. Yang, to be presented at the Sixth Colloquium on the Qualitative Theory of Differential Equations, held at the Bolyai Institute of Mathematics of the University of Szeged, Szeged, Hungary, August 10--14, 1999.*
  2. Existence of solutions for boundary value problems of a sixth order differential equation, with B. Yang, presented at the Twenty--fourth Annual Meeting of the Society for Industrial and Applied Mathematics Southeastern Atlantic Section, held at the University of Georgia, Athens, Georgia, March 24--25, 2000.
  3. Some integrability properties of solutions of nonlinear third order differential equations, with M. Bartusek, an invited address presented in the Special Session ``Differential Inequalities and Applications" at the 953rd Meeting of the American Mathematical Society, held at Notre Dame University, Notre Dame, Indiana, April 8--9, 2000.
  4. Some limit-point/limit-circle results for third order differential equations, with M. Bartusek, presented at the Year 2000 International Conference on Dynamical Systems and Differential Equations, held at Kennesaw State University, Kennesaw, Georgia, May 18--21, 2000.
  5. Oscillation and nonoscillation in a nonlinear impulsive system with increasing energy, with J. Karsai, presented at the Year 2000 International Conference on Dynamical Systems and Differential Equations, held at Kennesaw State University, Kennesaw, Georgia, May 18--21, 2000.
F. Ronald Smith
  1. Almost principal minors of inverse M-matrices, with C. R. Johnson, presented at the Thomas L. Markham Matrix Theory, Symposium in Columbia, South Carolina, December, 1999.
G. Yongzhi Xu
  1. A regularized acoustic inverse scattering method for underwater imaging, an invited talk in the special session ``Inverse Problems in Acoustics" at the Second Congress of International Society of Analysis, its Applications and Computations (ISAAC'99), in Fukuoka, Japan, August 16-22, 1999.
  2. Generalized dual space indicator method for inverse scattering problems in underwater acoustics, presented at the conference ``Inverse Problems and Nonlinearity, Theory and Applications" held at the Université Montpellier II, Montpellier, France, June 20-24, 2000.
Colloquium Lectures:

A. John R. Graef

  1. The limit-point/limit-circle problem: a survey, presented at Mississippi State University, Mississippi State, Mississippi, June 26, 2000.
B. Tomasz Kozubowski
  1. Laplace distributions and their generalizations, presented at the University of California at Santa Barbara, October 19, 1999.
C. Yongzhi Xu
  1. A generalized dual space indicator method for inverse problems in underwater acoustics, presented at Mississippi State University, Mississippi State, Mississippi, April 5, 2000.
  2. Inverse scattering problems in underwater acoustics, presented at City University of Hong Kong, May 4, 2000.
  3. A generalized dual space indicator method for inverse scattering problems in ocean acoustics, presented at Zhongshan University, Guangzhou, China, May 8, 2000.
  4. A new method for inverse scattering problems in underwater acoustics, presented at Ningxia University, Yinchuan, China, May 25, 2000.
  5. Applied mathematics and mathematics education in the U.S., presented at Ningxia University, Yinchuan, China, May 25, 2000.
  6. Some new results of the generalized dual space indicator method, presented at CNRS Lab of Mechanics and Acoustics, Marseille, France, June 16, 2000.

GRANTS AND CONTRACTS