{"id":5144,"date":"2020-07-23T14:15:24","date_gmt":"2020-07-23T18:15:24","guid":{"rendered":"https:\/\/notes.math.ca\/?post_type=article&#038;p=5144"},"modified":"2020-09-03T08:17:12","modified_gmt":"2020-09-03T12:17:12","slug":"richard-kenneth-guy-1916-2020-a-calgary-perspective-on-his-contributions-to-mathematics-and-mentorship","status":"publish","type":"article","link":"https:\/\/notes.math.ca\/en\/article\/richard-kenneth-guy-1916-2020-a-calgary-perspective-on-his-contributions-to-mathematics-and-mentorship\/","title":{"rendered":"Prologue"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"5144\" class=\"elementor elementor-5144\" data-elementor-post-type=\"article\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-3dbfa43 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"3dbfa43\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-9021881\" data-id=\"9021881\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-790c661 elementor-widget elementor-widget-image\" data-id=\"790c661\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t<figure class=\"wp-caption\">\n\t\t\t\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"1024\" height=\"678\" src=\"https:\/\/notes.math.ca\/wp-content\/uploads\/2020\/07\/54-Richard-at-Assiniboine-1024x678.jpg\" class=\"attachment-large size-large wp-image-5194\" alt=\"Richard Guy at Assiniboine\" srcset=\"https:\/\/notes.math.ca\/wp-content\/uploads\/2020\/07\/54-Richard-at-Assiniboine-1024x678.jpg 1024w, https:\/\/notes.math.ca\/wp-content\/uploads\/2020\/07\/54-Richard-at-Assiniboine-300x199.jpg 300w, https:\/\/notes.math.ca\/wp-content\/uploads\/2020\/07\/54-Richard-at-Assiniboine-768x509.jpg 768w, https:\/\/notes.math.ca\/wp-content\/uploads\/2020\/07\/54-Richard-at-Assiniboine-1536x1017.jpg 1536w, https:\/\/notes.math.ca\/wp-content\/uploads\/2020\/07\/54-Richard-at-Assiniboine-2048x1356.jpg 2048w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/>\t\t\t\t\t\t\t\t\t\t\t<figcaption class=\"widget-image-caption wp-caption-text\">Richard Guy at Mount Assiniboine on his 90th Birthday, 2006.<\/figcaption>\n\t\t\t\t\t\t\t\t\t\t<\/figure>\n\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-dda462a elementor-widget elementor-widget-text-editor\" data-id=\"dda462a\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>We mourn the loss of\u00a0Richard Kenneth Guy\u00a0who passed away on March 9, 2020, at the impressive age of 103. Richard was a mathematical giant who made enormous and lasting contributions to our discipline. Active till the end, he was a distinguished researcher, a passionate educator, a generous philanthropist and an avid mountaineer. To us, he was also a valued colleague, mentor and friend.<\/p><p>This collection of contributions from colleagues and former students at the University of Calgary recounts some of Richard\u2019s involvement in research and mentorship, with special emphasis on the more than 13 years of his life after ninety. Richard\u2019s interests were too diverse and his contributions too numerous to do them all justice in one article. As a result, we chose to focus on three main areas of mathematics, drawing from experts in these fields for their recollections and perspectives on Richard\u2019s impact. A section on combinatorial game theory was provided by Richard\u2019s former doctoral student Richard Nowakowski. Richard\u2019s University of Calgary colleague Tibor (Ted) Bisztriczky supplied a section on geometry. A section on number theory was written by Richard\u2019s Calgary colleagues Mike Jacobson, Hugh Williams and the first author. Outreach and mentorship were equally important to Richard as research, and he has inspired many young scholars. We solicited input from two of his former University of Calgary prot\u00e9g\u00e9s, Alex Fink and Julian Salazar, with whom he kept in contact until the last weeks of his life. We have also included a brief itemized biography and a short epilogue offering insight into other aspects of Richard\u2019s life both in and outside mathematics.<\/p><p>We thank all the contributors and are indebted to Claude Levesque (Universit\u00e9 Laval) for providing the French translation of the English original. The photographs herein are courtesy of the University of Calgary, Ted Bisztriczky, Yanmei Fei, Jane Lancaster, Chic Scott, Hugh Williams and the first author.<\/p><p>\u00a0<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-b6efa16 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"b6efa16\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-2cf9726\" data-id=\"2cf9726\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-9ad581a elementor-widget elementor-widget-text-editor\" data-id=\"9ad581a\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>This brief itemized biography highlights milestones in Richard\u2019s life. Much of it is drawn from the delightful book Young at Heart \u2013 The Inspirational Lives of Richard and Louise Guy (The Alpine Club of Canada, Canmore 2012) by Chic Scott, author, mountaineer and long-time friend of the Guys.<\/p><ul><li><p>Richard is born on September 30, 1916, in Nuneaton, Warwickshire (UK)<\/p><\/li><li><p>BSc 1938 and MSc 1941 from Cambridge; Teacher diploma in 1939 from Birmingham<\/p><\/li><li><p>Taught at Stockport Grammar School near Manchester 1939-1941<\/p><\/li><li><p>Married Nancy Louise Thirian on December 21, 1940; three children (Elizabeth Anne, Michael, Peter)<\/p><\/li><li><p>Meteorologist with the Royal Air Force (rank of Flight Lieutenant) 1941-1946; posted in Scotland, Iceland and Bermuda<\/p><\/li><li><p>Taught again at Stockport Grammar School 1946-1947<\/p><\/li><li><p>Taught at Goldsmith\u2019s College (a teacher training college) in London 1947-1951<\/p><\/li><li><p>Faculty member at the University of Malaya, Singapore, 1951-1961<\/p><\/li><li><p>Faculty member at IIT Delhi 1962-1965<\/p><\/li><li><p>Faculty member at the University of Calgary 1965-1982, Professor Emeritus since 1982<\/p><\/li><li><p>Honorary Doctor of Laws degree from University of Calgary 1991<\/p><\/li><li><p>Richard and Louise Guy Lecture Series endowed as a gift from Louise to Richard for his 90th birthday, 2006<\/p><\/li><li><p>Louise passes away at age 92 on September 30, 2010, on Richard\u2019s 94th birthday<\/p><\/li><li><p>Richard and Louise Guy Hut in Yoho National Park opens its doors to overnight backcountry skiers, 2016<\/p><\/li><li><p>City of Calgary Top 7 Over 70 Award and Immigrants of Distinction Lifetime Achievement Award, 2017<\/p><\/li><li><p>Last &#8220;Climb for Wilderness&#8221; for the <em>Alberta Wilderness Association<\/em>\u00a0on April 27, 2019<\/p><\/li><li><p>Richard passes away on March 9, 2020<\/p><\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-a5bedbc elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"a5bedbc\" data-element_type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-8d9723d\" data-id=\"8d9723d\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-a650680 elementor-widget elementor-widget-text-editor\" data-id=\"a650680\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><span style=\"color: #777777; font-size: 1rem;\">\u00a0<\/span><\/p><p><span style=\"color: #777777; font-size: 1rem;\">Renate Scheidler<\/span><em style=\"color: #777777; font-size: 1rem;\"> is a Professor in the Department of Mathematics and Statistics and the Department of Computer Science at the University of Calgary. Her area of research is number theory, with a particular interest in algorithms and computations in global fields in the context of algebraic number theory, arithmetic geometry and cryptography.<\/em><\/p><p><span style=\"color: #777777;\">Robert Woodrow<em> is a Faculty Professor and Professor Emeritus in the Department of Mathematics and Statistics at the University of Calgary. His research interests include logic and graph theory, specifically the theory of relations, homogenous structures, ordered sets and Ramsey theory.<\/em><\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>\n\t\t","protected":false},"author":6,"template":"","section":[196],"keyword":[],"class_list":["post-5144","article","type-article","status-publish","hentry","section-richard-guy"],"toolset-meta":{"author-4-info":{"author-4-surname":{"type":"textfield","raw":""},"author-4-given-names":{"type":"textfield","raw":""},"author-4-honorific":{"type":"textfield","raw":""},"author-4-institution":{"type":"textfield","raw":""},"author-4-email":{"type":"email","raw":""},"author-4-cms-role":{"type":"textfield","raw":""}},"author-3-info":{"author-3-surname":{"type":"textfield","raw":""},"author-3-given-names":{"type":"textfield","raw":""},"author-3-honorific":{"type":"textfield","raw":""},"author-3-institution":{"type":"textfield","raw":""},"author-3-email":{"type":"email","raw":""},"author-3-cms-role":{"type":"textfield","raw":""}},"author-2-info":{"author-2-surname":{"type":"textfield","raw":""},"author-2-given-names":{"type":"textfield","raw":""},"author-2-honorific":{"type":"textfield","raw":""},"author-2-institution":{"type":"textfield","raw":""},"author-2-email":{"type":"email","raw":""},"author-2-cms-role":{"type":"textfield","raw":""}},"author-info":{"author-surname":{"type":"textfield","raw":"R. 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