David Eppstein
David Eppstein (1963 - ) American computer programmer of English birth.
After earning a bachelor’s degree in mathematics from Stanford in 1984 and a Ph.D. in computer science from Columbia university in 1989, Eppstein went on to work at the Palo Alto Research Center and teach computing at the University of California-Irvine. In 1991, he coauthored with Frances Yao and others a paper on horizon theorems for lines and polygons in “Discrete and Computational Geometry: Papers from the DIMACS Special Year”, DIMACS Ser. Discrete Math. and Theoretical Computer Science 6; since Yao coauthored with Fan Chung Graham, Ronald Graham, Stanisław Ulam (http://planetmath.org/StanislawUlam) and Erdős “Minimal decompositions of two graphs into pairwise isomorphic subgraphs
” in Proceedings of the Tenth Southeastern Conference on Combinatorics, Graph Theory
and Computing in 1979, Eppstein has Erdős number (http://planetmath.org/ErdHosNumber) 2.
These days he edits Wikipedia articles on mathematical topics.