In group theory, a topic in abstract algebra, the Mathieu groups are the five sporadic simple groups M11, M12, M22, M23 and M24 introduced by Mathieu . They are multiply transitive permutation groups on 11, 12, 22, 23 or 24 objects. They were the first sporadic groups to be discovered. Sometimes the notation M9, M10, M20 and M21 is used for related groups (which act on sets of 9, 10, 20, and 21 points, respectively), namely the stabilizers of points in the larger groups. While these are not sporadic simple groups, they are subgroups of the larger groups and can be used to construct the larger ones. John Conway has shown that one can also extend this sequence up, obtaining the Mathieu groupoid M13 acting on 13 points. M21 is simple, but is not a sporadic group, being isomorphic to PSL(3,4). (Wikipedia).
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During the 19th century, group theory shifted from its origins in number theory and the theory of equations to describing symmetry in geometry. In this video we talk about the history of the search for simple groups, the role of symmetry in tesselations, both Euclidean, spherical and hyper
From playlist MathHistory: A course in the History of Mathematics
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From playlist Mathematics
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From playlist Abstract algebra
Simple groups, Lie groups, and the search for symmetry II | Math History | NJ Wildberger
This is the second video in this lecture on simple groups, Lie groups and manifestations of symmetry. During the 19th century, the role of groups shifted from its origin in number theory and the theory of equations to its role in describing symmetry in geometry. In this video we talk abou
From playlist MathHistory: A course in the History of Mathematics
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The group is the most fundamental object you will study in abstract algebra. Groups generalize a wide variety of mathematical sets: the integers, symmetries of shapes, modular arithmetic, NxM matrices, and much more. After learning about groups in detail, you will then be ready to contin
From playlist Abstract Algebra
The idea of a quotient group follows easily from cosets and Lagrange's theorem. In this video, we start with a normal subgroup and develop the idea of a quotient group, by viewing each coset (together with the normal subgroup) as individual mathematical objects in a set. This set, under
From playlist Abstract algebra
Now that we know what a quotient group is, let's take a look at an example to cement our understanding of the concepts involved.
From playlist Abstract algebra
Frédéric Barbaresco : Sympletic and Poly-Sypectic Model of Souriau Lie-Groups Thermodynamics : ...
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From playlist Geometry
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From playlist Abstract Algebra
Univers Convergents 2020 - Séance 1/6 - Les derniers jours du monde
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From playlist Ciné-Club Univers Convergents
Gerald Dunne: Quantum geometry and resurgent perturbative/nonperturbative relations
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From playlist Arithmetic of K3 Surfaces
Nicolas Rougerie - Bose gases at positive temperature and non-linear Gibbs measures
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Can't you just feel the Moonshine? - Ken Ono (Emory University) [2017]
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From playlist Number Theory
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Exotic patterns in Faraday waves by Laurette Tuckerman (Sorbonne University, France)
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From playlist ICTS Colloquia
Mathieu Henri: Monster Audio-Visual demos in a TCP packet | JSConf EU 2014
Whole new worlds come into life when the creative coding and technical madness of the Demoscene meet the breadth of optimization techniques of the web platform. In this talk we will step back from our day job, twist best practices, abuse JavaScript and web browsers, use good old smoke and
From playlist JSConf EU 2014
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From playlist Abstract algebra
Anne TAORMINA - Mathieu Moonshine: Symmetry Surfing and Quarter BPS States at the Kummer Point
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Group Theory II Symmetry Groups
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From playlist Foundational Math