Hans Hahn

A crisis of intuition as viewed by Felix Klein and Hans Hahn and its resolution by fractal geometry

at the start, to have constant regard to the applications, and to refer to the refinements only gradually as the student becomes able to understand them. This is, of course, nothing but a universal pedagogical principle to be observed in all mathematical instruction.... I am led to these remarks by the consciousness of growing danger in Germany of a separation between abstract mathematical scie...

Hans Arnold Heilbronn 1908-1975 Hans

© 2007 Hahn Koo

Recent studies show that the adult phonological processing system constantly changes as a result of word processing experience; adult speakers can learn new sound patterns from brief experience processing words that exhibit the sound patterns, and how they process words changes as a result of learning. But how malleable is the phonological processing system and what is the mechanism underlying ...

Inner Bounds for the Extreme Zeros of the Hahn, Continuous Hahn and Continuous Dual Hahn Polynomials

We apply Zeilberger’s algorithm to generate relations of finite-type necessary to obtain inner bounds for the extreme zeros of orthogonal polynomial sequences with 3F2 hypergeometric representations. Using this method, we improve previously obtained upper bounds for the smallest and lower bounds for the largest zeros of the Hahn polynomials and we identify inner bounds for the extreme zeros of ...

Hans Meinhardt

Hans Meinhardt is a theoretical developmental biologist working at the Max-Planck-Institute for Developmental Biology in Tübingen. He has pioneered the use of mathematical modelling of embryonic pattern formation. He received his PhD from the University of Cologne in Physics. For a postdoctoral fellowship, he went to the European High Energy Laboratory CERN at Geneva. By collaborating in an exp...