From mboxrd@z Thu Jan 1 00:00:00 1970 X-Msuck: nntp://news.gmane.io/gmane.science.mathematics.categories/10424 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: "Niefield, Susan" Newsgroups: gmane.science.mathematics.categories Subject: Barry Mitchell Date: Mon, 22 Mar 2021 18:30:44 -0400 Message-ID: Reply-To: "Niefield, Susan" Mime-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="28073"; mail-complaints-to="usenet@ciao.gmane.io" To: categories@mta.ca Original-X-From: majordomo@rr.mta.ca Tue Mar 23 17:28:44 2021 Return-path: Envelope-to: gsmc-categories@m.gmane-mx.org Original-Received: from smtp2.mta.ca ([198.164.44.75]) by ciao.gmane.io with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1lOjta-00074Q-GK for gsmc-categories@m.gmane-mx.org; Tue, 23 Mar 2021 17:28:42 +0100 Original-Received: from rr.mta.ca ([198.164.44.159]:49408) by smtp2.mta.ca with esmtp (Exim 4.80) (envelope-from ) id 1lOjrM-0000zh-2w; Tue, 23 Mar 2021 13:26:24 -0300 Original-Received: from majordomo by rr.mta.ca with local (Exim 4.92.1) (envelope-from ) id 1lOjpn-0008Qr-Kk for categories-list@rr.mta.ca; Tue, 23 Mar 2021 13:24:47 -0300 Precedence: bulk Xref: news.gmane.io gmane.science.mathematics.categories:10424 Archived-At: With great sadness, I learned today that my dissertation advisor Barry Mitchell passed away in late January in a nursing home in Kingston, New York. As part of the group at Columbia University in the sixties, Barry was involved in the development of category theory and wrote one of the earliest books on the subject. He was active through the seventies and early eighties writing papers on abelian categories and homological algebra. He was a great supervisor and mentor, and will be remembered for his insightful and interesting approach to mathematics. [Note from moderator: There is an obituary at: https://www.legacy.com/obituaries/dailyfreeman/obituary.aspx?n=barry-m-mitchell&pid=197672237&fhid=3910 ] [For admin and other information see: http://www.mta.ca/~cat-dist/ ]