1992
1992 Texas Partial Differential Equations Seminar
University of North Texas, Denton

Saturday March 7, 1992. (In order of presentation).
 Tuncay Aktosun: Southern Methodist Univ.; WienerHopf factorization and inverse problems for partial differential equations.
 Joseph Iaia: Univ. of North Texas; Isometric embeddings of surfaces with negative curvature in three dimensional Euclidean space.
 Lester Caudill: Texas A&M Univ.; On the construction of a potential from Cauchy data.
 Gang Bao: Rice Univ.; Microlocal regularity of the relation between the coefficient and boundary value for solutions of a multidimensional wave equation.
 Barbara Keyfitz: Univ. of Houston; Spaces of weighted measures for conservation laws with singular shock solutions.
 Roger Knobel: Texas A&M Univ.; On construction of potentials in a twodimensional inverse eigenvalue problem.
 Victor Shubov: Texas Tech Univ.; Derivation of a hydrodynamic equation for a stochastically perturbed infinite and harmonic system with constraints.
 Robert Renka: Univ. of North Texas; A variable metric method for solution of the parametric minimal surface problem.
 Marianna Shubov: Texas Tech Univ.; Low energy chain of resonances and high energy asymptotics of resonances for oneparticle threeDimensional Schroedinger operator with nearly Coulomb potential.
 Athanasios Lyberopoulos: Univ. of Oklahoma; A PoincareBendixson theorem for hyperbolic balance laws.
 Ralph Showalter: Univ. of Texas at Austin; Diffusion models with microstructure.
 John Cook: Univ. of Texas at Austin; Microstructure models with secondary flux.

Sunday March 8, 1992.
 David H. Wagner: Univ. of Houston; Global existence of weak solutions to the Euler equations for an exothermically reacting gas.
 Mufid Abudiab: Kansas State Univ.; The reactiondiffusion modeling of AIDS infection.
 Maurice H.P.M. van Putten: California Institute of Technology; MHD in divergence form: a numerical formulation.
 Lindsay Packer: Univ. of Texas at Austin; The regularized layered medium equation.
 Bruce Lowe: Texas A&M Univ.; A variational method for parameter identification.
 Vinod Vaidyanath: Univ. of Houston; Structural stability of riemann solutions for a multiphase kinematic conservation law model that changes type.
 Nikos Salingaros: Southern Methodist Univ.; Solutions of the equation B x (curl B) = 0 and forcefree magnetic fields.
 Alfonso Castro: Univ. of North Texas; Branches of radial solutions in a semipositone problem.
 Sudhasree Gadam: Univ. of North Texas; Uniqueness of positive solutions for semipositone problems.