Mathematician interested in orthogonal polynomials and special functions. Recently q-series, q-hypergeometric functions and integral representation methods for basic hypergeometric orthogonal polynomials. Fundamental solutions of Laplace-Beltrami and other elliptic operators and their natural eigenfunction expansions on highly symmetric Riemannian manifolds such as rank one symmetric spaces. Technical Editor for NIST DLMF project. http://dlmf.nist.gov Ph.D. in Mathematics Ph.D. in Physics M.S. in Physics B.S. in Astronomy and Astrophysics Works remotely at ACMD, NIST, Gaithersburg, Maryland. Lives in Mission Viejo, California. http://hcohl.sdf.org/bibliography.html