Autor: Michal Krizek

Michal Křížek is a senior researcher at the Institute of Mathematics of the Czech Academy of Sciences and a full professor at Charles University in Prague. For many years he was Editor-in-chief of the journal Applications of Mathematics and the Czech journal Advances of Mathematics, Physics and Astronomy. He is a member of the Czech Learned Society and the International Astronomical Union. His research focuses on mathematical and functional analysis, the numerical solution of partial differential equations, mathematical physics, and astrophysics. Lawrence Somer is a professor emeritus of mathematics at the Catholic University of America in Washington, D.C. He obtained his B. A. degree in mathematics from Cornell University in Ithaca, New York, and his Ph D. from the University of Illinois. He is a member of the Editorial board of the journal Fibonacci Quarterly. His research interests include number theory, combinatorics, algebra, geometry, and cosmology.