From mboxrd@z Thu Jan 1 00:00:00 1970 X-Msuck: nntp://news.gmane.io/gmane.science.mathematics.categories/10795 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: "George Janelidze" Newsgroups: gmane.science.mathematics.categories Subject: Re: Rudger Kieboom Date: Wed, 7 Sep 2022 01:35:27 +0200 Message-ID: References: Reply-To: "George Janelidze" Mime-Version: 1.0 Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="31519"; mail-complaints-to="usenet@ciao.gmane.io" To: "Tim Van der Linden" , Original-X-From: majordomo@rr.mta.ca Fri Sep 09 23:53:16 2022 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 1oWlw4-0007vP-4U for gsmc-categories@m.gmane-mx.org; Fri, 09 Sep 2022 23:53:16 +0200 Original-Received: from rr.mta.ca ([198.164.44.159]:59390) by smtp2.mta.ca with esmtp (Exim 4.80) (envelope-from ) id 1oWlui-0004RF-5N; Fri, 09 Sep 2022 18:51:52 -0300 Original-Received: from majordomo by rr.mta.ca with local (Exim 4.92.1) (envelope-from ) id 1oWlsz-0007Bw-CC for categories-list@rr.mta.ca; Fri, 09 Sep 2022 18:50:05 -0300 In-Reply-To: Precedence: bulk Xref: news.gmane.io gmane.science.mathematics.categories:10795 Archived-At: We will miss Rudger Kieboom's mathematics, and his kindness and friendship. Very sadly, the 97th PSSL (2015) at Louvain-la-Neuve, dedicated to his 65th birthday, also turned out to be the last time to see him for many of us. George Janelidze -------------------------------------------------- From: "Tim Van der Linden" Sent: Monday, September 5, 2022 4:59 PM To: Subject: categories: Rudger Kieboom > I have the sad honour to announce the passing of Rudger Kieboom > (1950-2022), Professor Emeritus at the Vrije Universiteit Brussel (VUB). > His enthusiasm for Category Theory influenced several master students at > the VUB. Philippe Cara, Tomas Everaert and I made our Ph.D.'s under his > guidance. > > After an initial two years of studies in his home town Antwerp, Rudger > obtained both his M.Sc. (1970) and Ph.D. (1976) at the VUB, where he woul= d > work for 45 years in total. His main mathematical interest was in > classical homotopy theory (diverse types of (co)fibrations, homotopy > lifting and extension properties), work which gradually became more > categorical, with later results in a 2-dimensional and in an > internal-categorical context. > > Rudger was a friendly, good-humoured man, who enjoyed a good discussion > over a glass of beer. Apart from science, mathematics, horror movies and > philosophy, he was passionate about jazz: he would never miss an edition > of Antwerp's yearly jazz festival. Unfortunatly, at the end of his active > career, Rudger was diagnosed with Alzheimer's disease. This caused him to > be hospitalised suddenly, seven years ago. His disease soon made any type > of contact impossible, so in this sense we have already had to miss him > for several years. > > Tim Van der Linden [For admin and other information see: http://www.mta.ca/~cat-dist/ ]