Dilcher, Karl, Ph.D. - Professor, Department of Mathematics and Statistics, Dalhousie University, Halifax, Novia Scotia, Canada. His research interests are number theory, classical analysis, Bernoulli numbers and polynomials. Deering, Larry - Programmer with electronics interests. Black Key Sieve (improvement on the Sieve of Erastothenes), a Mandelbrot program, a program for Barker Codes, and a TiCK Keyer modification. Doyle, Peter, Ph.D. - Faculty member at Dartmouth College. His research involves Geometry, Chance, and Finite Math. Articles, discussions, and links to a variety of mathematical sites. Duzhin, Sergei V. - Laboratory of Representation Theory and Computational Mathematics (A.M.Vershik), Steklov Mathematical Institute, St Petersburg. Low-dimensional topology, differential geometry, combinatorics, mathematical computations. Dewdney, A.K. - Deductive science. Douillet, Pierre L. - PhD in Computer Science, Fac. Sc. Paris, France, involved in Operational Research, Computer Science as well as Mathematics. Currently with the ENSAIT (Roubaix, France). De Boor, Carl-Wilhelm Reinhold, Ph.D. - Professor Emeritus of Computer Sciences and Mathematics at the University of Wisconsin-Madison. His research involves approximation theory. CV, full-text research articles via ftp, links to journals and conferences involving approximation theory. Draghia, Dumitru, Dr. - Researcher at the National Communications Research Institute, Bucharest. His doctoral research focus was continuity in Banach algebras. His teaching has included real and complex analysis, functional analysis, and measure theory. Brief CV, list of publications, contact information, links to his research and teaching sites. Daubechies, Ingrid - Professor of Applied Mathematics, Princeton University Department of Mathematics. Wavelet theory, time frequency analysis, data compression, compactly supported wavelets.