From mboxrd@z Thu Jan 1 00:00:00 1970 X-Msuck: nntp://news.gmane.io/gmane.science.mathematics.categories/8235 Path: news.gmane.org!not-for-mail From: Michael Barr Newsgroups: gmane.science.mathematics.categories Subject: Re: Stephen H. Schanuel Date: Thu, 24 Jul 2014 22:04:46 -0400 (EDT) Message-ID: References: Reply-To: Michael Barr NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit X-Trace: ger.gmane.org 1406340411 947 80.91.229.3 (26 Jul 2014 02:06:51 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Sat, 26 Jul 2014 02:06:51 +0000 (UTC) Cc: categories@mta.ca To: wlawvere Original-X-From: majordomo@mlist.mta.ca Sat Jul 26 04:06:45 2014 Return-path: Envelope-to: gsmc-categories@m.gmane.org Original-Received: from smtp3.mta.ca ([138.73.1.186]) by plane.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1XArNl-0001Vk-04 for gsmc-categories@m.gmane.org; Sat, 26 Jul 2014 04:06:45 +0200 Original-Received: from mlist.mta.ca ([138.73.1.63]:48324) by smtp3.mta.ca with esmtp (Exim 4.80) (envelope-from ) id 1XArNR-0005Nf-5n; Fri, 25 Jul 2014 23:06:25 -0300 Original-Received: from majordomo by mlist.mta.ca with local (Exim 4.71) (envelope-from ) id 1XArNR-0007Ep-Qb for categories-list@mlist.mta.ca; Fri, 25 Jul 2014 23:06:25 -0300 In-Reply-To: Precedence: bulk Xref: news.gmane.org gmane.science.mathematics.categories:8235 Archived-At: I was very sorry to hear this. I always liked Steve a lot. When I came to Columbia as a newly minted instructor, I was assigned to a large office with one other new PhD and four graduate students, one of whom was Steve. I theoretically specialized (in those days) in homological algebra. Nonetheless I learned more about homological algebra than I had before just from talking to Steve. For one thing, I had never heard of Schanuel's lemma nor how it could be used to prove the invariance of homological dimension. He also showed me how to compute the Catalan numbers (the nth Catalan number is the number of ways of associating a product of n terms). I was one of the first to hear what is now known as Schanuel's conjecture, which is an important area of study in number theory. Rest in Peace, Steve. Michael ----- Original Message ----- From: "wlawvere" To: categories@mta.ca Sent: Thursday, July 24, 2014 7:27:21 PM Subject: categories: Stephen H. Schanuel Stephen H. Schanuel Dear colleagues, It is with deep sadness that I report that my best friend, Steve Schanuel, died today. His intellectual generosity and quick mathematical wit, legendary among colleagues and students alike, will continue to inspire many. Bill Lawvere [For admin and other information see: http://www.mta.ca/~cat-dist/ ]