- Jan 23, 1998, 1000AM–1130AM, Anthony D’Aristotile, (SUNY at Plattsburgh)
*Brownian Motion and the Classical Groups*. - Feb 19, 1998, 4:00PM, Room C-208. Joaquim Borges i Ayats, (University of Barcelona)
*Varieties of Designs*. - February 24, 1998, 3:00PM, Room A-123. Tudor Zamfirescu, University of Dortmund,
*Criticism on Surfaces*. - Feb 26, 1998, 4:00PM, Room C-208. Joaquim Borges i Ayats, (University of Barcelona)
*On Homogeneous Perfect Single Error Correcting Codes*. - March 5, 1998, 4:00PM, Room C-208. Joaquim Borges i Ayats, (University of Barcelona)
*A Characterization of 1-Perfect Additive Codes (Part I)*. - March 12, 1998, 4:00PM, Room C-208. Joaquim Borges i Ayats, (University of Barcelona)
*A Characterization of 1-Perfect Additive Codes (Part II)*. - March 20, 1998, 11:00 AM, Room A 123. Norberto Salinas, (University of Kansas, Lawrence)
*Points of Infinite Curvature in the Boundary of the Matricial Range and Finite Dimensional Representations*. - March 24, 1998, 11:00AM, Room C-209. Richard P. Stanley, (MIT)
*The Upper Bound Conjecture and Cohen-Macauly Rings*. - March 24, 1998, 4:00PM, Room C-310. Gabor T. Herman, (University of Pennsylvania)
*Tomography in Electron Microscopy*. - April 23, 1998, 11:30 AM, Room C-209. Bahman Kalantari, (University of Rutgers)
*Determinantal Approximation of Roots of Polynomials and Special Algebraic Numbers*. - May 19, 1998, 03:00 AM, Room A-208. Curt Lindner, (Auburn University)
*How to Embed a Partial 4-Cycle System*. - May 20, 1998, 11:00 AM, Room A-123. Laszlo Zsido ( University of Rome II)
*Topological Properties of Multiplier C*.^{*}-Algebras - June 15, 1998, 11:00 AM, Room A-123. Gieri Simonett (Vanderbilt University)
*Motion of Surfaces by Curvature*. - June 18, 1998, 11:00 AM, Room A-123.Rabah Labbas ( Universit\’e du Havre, France)
*Singular Behaviour of Dirichlet Problem in Sobolev Spaces built on L*.^{P}and Holder Spaces - Tuesday September 1st, 1998 0300PM., Room A-123. (weekly eminar) W. H. Summers,
*Semigroup Solutions of Functional Differential Delay Equations.* - December 1, 1998, 02:30 PM, Room A-123. W. H. Summers,
*A local approach to global solutions of a single species population model*. - December 8, 1998, 0230PM, Room A-123, Gunter Lumer ( University of Mons, Belgium)
*Blow up, Big Bang and Parabolic Equations with Singular Interactions*. - December 18, 1998, 0100PM, Room A-123, Mircea Martin (Baker University, Kansas)
*Spin geometry and Clifford analysis; techniques in multidimensional operatpor theory*