Hebrew University Amitsur Algebra Seminar ***************************** Time: Thursday, March 31, at 12:00. Place: room 209, Mathematics building Speaker: Hillel Furstenberg (HUJI) Title: Algebraic functions over finite fields. Abstract: The Hadamard product of two functions $\sum a_n z^n, \sum b_n z^n$ is defined classically as $\sum a_n b_n z^n$. It is easy to give examples of two algebraic functions whose Hadamard product is not algebraic (e.g. $a_n = b_n = {an\choose n})$. However in the context of formal power series over a finite field, the Hadamard product of algebraic functions remains algebraic. We will explain this and --- if time allows --- give the motivation for the question. You are cordially invited! <http://math.huji.ac.il/amitsur.html> --------------------------------------------------------- Technion Math Net-2 (TECHMATH2) Editor: Michael Cwikel <techm@math.technion.ac.il> Announcement from: Gili Schul <gili.schul@mail.huji.ac.il>