Søren Have Hansen - Publications and links. Hall, Richard - Professor of mathematics at Concordia University in Montreal, Canada. Research specialties include quantum mechanics and spectral geometry. Page includes publications, teaching courses, and class notes. Hang, Fengbo - Department of Mathematics, New York University. Subjects: geometric analysis, nonlinear partial differential equations, geometric measure theory. Hypatia-phd's Math Page - Devoted to mathematics and mathematics education. Original lesson plans and class information for teachers; links to NCTM, MAA, lateral logic puzzles and other resources. Jan Kristian Haugland - Includes D Phil thesis, the game Neutreeko, grid subgraphs and various problems and puzzles. Hu, Robin - Constructions with compass and straightedge: close approximations to the classical questions. Herod, James V. - School of Mathematics at the Georgia Institute of Technology. Page includes author's notes of multivariable calculus, differential equations, and mathematics of biology. various applications and linear algebra (pdf format). Also, has family lineage.