Charles Coffin Sims (April 14, 1937 – October 23, 2017) was an American mathematician best known for his work in group theory. Together with Donald G. Higman he discovered the Higman–Sims group, one of the sporadic groups. The permutation group software developed by Sims also led to the proof of existence of the Lyons group (also known as the Lyons–Sims group) and the O'Nan group (also known as the O'Nan–Sims group). Sims was born and raised in Elkhart, Indiana, and received his B.S. from the University of Michigan. He did his graduate studies at Harvard University, where he was a student of John G. Thompson and received his Ph.D. degree in 1963. In his thesis he enumerated p-groups, giving sharp asymptotic upper and lower bounds. Sims is one of the founders of computational group theory and is the eponym of the Schreier–Sims algorithm. He was a faculty member at the Department of Mathematics at Rutgers University from 1965 to 2007. During that period he served, in particular, as Department Chair (1982–84) and Associate Provost for Computer Planning (1984–87). Sims retired from Rutgers in 2007 and moved to St. Petersburg, Florida. In 2012 he became a fellow of the American Mathematical Society. (Wikipedia).
Interview at Cirm: Howard Masur
Howard Masur is an American mathematician who works on topology, geometry and combinatorial group theory. Masur was an invited speaker at the 1994 International Congress of Mathematicians in Zürich. and is a fellow of the American Mathematical Society. Along with Yair Minsky, Masur is one
From playlist English interviews - Interviews en anglais
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From playlist Science Unplugged: Physics
Alan Turing - Celebrating the life of a genius
Saturday 23 June 2012 marks the centenary of the birth of Alan Turing - mathematical genius, hero of the WWII code breakers of Bletchley Park, and father of modern computing. Alan Turing was a mathematician, cryptographer and pioneer of computer science who possessed one of the greatest
From playlist My Maths Videos
Présentation de l'exposition "Emile Borel : un mathématicien au pluriel"
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From playlist Bibliothèque
http://www.teachastronomy.com/ Albert Einstein was the most famous scientist of the twentieth century and perhaps of all time. The man who invented the theories of special and general relativity was an unconventional scientist who spent most of his career outside the mainstream. His Gree
From playlist 07. Geology and Physics
Alan Turing - Celebrating the life of a genius [2012]
Description: Saturday 23 June 2012 marks the centenary of the birth of Alan Turing - mathematical genius, hero of the WWII code breakers of Bletchley Park, and father of modern computing. Alan Turing was a mathematician, cryptographer and pioneer of computer science who possessed one of
From playlist Mathematics
Keith's Building Tour - Objectivity 231
Keith takes us on a grand tour of the Royal Society's home at Carlton House Terrace in London. More links below ↓↓↓ Objectivity on Patreon: https://www.patreon.com/objectivity Find out more about the Royal Society's online Open House event here: https://royalsociety.org/science-events-
From playlist Objectivity
Long-term history and ephemeral configurations – Catherine Goldstein – ICM2018
Plenary Lecture 12 Long-term history and ephemeral configurations Catherine Goldstein Abstract: Mathematical concepts and results have often been given a long history, stretching far back in time. Yet recent work in the history of mathematics has tended to focus on local topics, over a s
From playlist Plenary Lectures
Tristan Riviere: The work of Louis Nirenberg on Partial Differential Equations
Original title of the lecture: "Exploring the unknown, the work of Louis Nirenberg on Partial Differential Equations" We had to shorten the title to fit Youtubes limitations of title length. Abastract: Partial differential equations are a central object in the mathematical modeling of na
From playlist Abel Lectures
DATE & TIME 05 November 2016 to 14 November 2016 VENUE Ramanujan Lecture Hall, ICTS Bangalore Computational techniques are of great help in dealing with substantial, otherwise intractable examples, possibly leading to further structural insights and the detection of patterns in many abstra
From playlist Group Theory and Computational Methods
Marcus du Sautoy on John Tates' work
Marcus Peter Francis du Sautoy is a British mathematician, author, and populariser of science and mathematics. You can view more content of Marcus du Sautoy here: https://www.youtube.com/channel/UCYF21Xc9fSdqVWRxpBAOleQ/featured This video is a clip from the Abel Prize Announcement 2009
From playlist Popular presentations
http://www.teachastronomy.com/ Charles Darwin was born into a wealthy family in England in 1809. He had two famous grandfathers. One, Erasmus Darwin, was a noted scientist, and the other, Josiah Wedgwood, was one of the first entrepreneurs of the industrial revolution. Darwin enrolled i
From playlist 24. Chemistry and Context for Life
http://www.teachastronomy.com/ Perhaps the greatest scientist who ever lived, Isaac Newton was born just after the death of Galileo. Lonely and moody as a child, his early education was unremarkable, but when he went to university at Cambridge his true intelligence came forth. During a t
From playlist 03. Concepts and History of Astronomy and Physics
Lord Byron's daughter and The First Computer Program
Ada Lovelace was an English author and mathematician who was one of the first to recognize that an invention by Charles Babbage could have uses far beyond the simple computation of numbers. The History Guy remembers poetry, mathematics, and Lovelace who was, among her other accomplishments
From playlist History without War
Denis Roze - Quantifying the evolutionary advantage of recombination infinite populations
One of the most widely cited hypotheses to explain the evolutionary maintenance of sex and recombination states that recombination increases the efficiency of natural selection by reducing interference among selected loci. Until recently, this possible benefit of re-combination was quanti˝
From playlist [T1 2022] Workshop - Mathematical models in ecology and evolution - March 21st to 25th, 2022
Hélène Esnault: Arithmetic of rank one local systems
Abstract : Joint with Moritz Kerz. We study arithmetic subvarieties of the character variety of normal complex varieties defined over a field of finite type. Recording during the meeting "Birational Geometry and Hodge Theory" the February 11, 2019 at the Centre International de Rencontres
From playlist Algebraic and Complex Geometry
7. Direct Imaging of Exoplanets
Frontiers/Controversies in Astrophysics (ASTR 160) Class begins with a problem on transits and learning what information astronomers obtain through observing them. For example, radii of stars can be estimated. Furthermore, applying the Doppler shift method, one can find the mass of a st
From playlist Frontiers/Controversies in Astrophysics with Charles Bailyn
Jean-Yves Welschinger: Expected topology of a random subcomplex in a simplicial complex
Abstract: I will explain how to bound from above and below the expected Betti numbers of a random subcomplex in a simplicial complex and get asymptotic results under infinitely many barycentric subdivisions. This is a joint work with Nermin Salepci. It complements previous joint works with
From playlist Probability and Statistics
Boris Hasselblatt - Jean Morlet Chair Nov. 2013 to April 2014
INTERVIEW The Jean Morlet Chair is a scientific collaboration between CIRM -CNRS-SMF-, Aix-Marseille Université and the City of Marseille. Two international calls are launched every year to attract innovative researchers in an area of mathematical sciences. Selected candidates who must co
From playlist Jean-Morlet Chair's holders - Interviews
Sir Charles G. Darwin - This I Believe (1950s) - Radio broadcast
Charles Galton Darwin, the grandson of Sir Charles Darwin, was an English physicist. Director of the National Physical Laboratory (NPL) during the Second World War.
From playlist Voices of History