In mathematics, coset enumeration is the problem of counting the cosets of a subgroup H of a group G given in terms of a presentation. As a by-product...
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set of G into disjoint, equal-size subsets called cosets. There are left cosets and right cosets. Cosets (both left and right) have the same number of elements...
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coset enumeration problem. Given a presentation of a group G by generators and relations and a subgroup H of G, the algorithm enumerates the cosets of...
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Italian school of algebraic geometry. The Todd–Coxeter process for coset enumeration is a major method of computational algebra, and dates from a collaboration...
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graph of (G, S). The graph is useful to understand coset enumeration and the Todd–Coxeter algorithm. Coset graphs can be used to form large permutation representations...
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permutation group the Todd–Coxeter algorithm and Knuth–Bendix algorithm for coset enumeration the product-replacement algorithm for finding random elements of a...
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Cayley graph (section Schreier coset graph)
{\displaystyle \Gamma } is disconnected and each connected component represents a coset of the subgroup generated by S {\displaystyle S} . If an element s {\displaystyle...
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work with because they are ill-suited to standard methods such as coset enumeration. In topology, groups can often be described as finitely presented...
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∈ G } {\displaystyle G\cdot x=\{g\cdot x:g\in G\}} and the set of left cosets G / G x {\displaystyle G/G_{x}} . Lagrange's theorem implies that | G ⋅...
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Combinatorics (section Enumerative combinatorics)
concerns the enumeration of combinatorial structures using tools from complex analysis and probability theory. In contrast with enumerative combinatorics...
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moonshine Projective representation Representation theory Schur's lemma Coset enumeration Schreier's subgroup lemma Schreier–Sims algorithm Todd–Coxeter algorithm...
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repeated, generating the whole coset S k − 1 τ 1 {\displaystyle S_{k-1}\tau _{1}} , reaching the last permutation in that coset λ k − 1 τ 1 {\displaystyle...
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n {\displaystyle n} . Then G {\displaystyle G} acts on the set of left cosets of U {\displaystyle U} in G {\displaystyle G} by left shift: g ( h U ) =...
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from each right (respectively left) coset of H. In this case, the "sets" (cosets) are mutually disjoint, i.e. the cosets form a partition of the group. As...
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whose index is 2. Elements of the coset 0 + I {\displaystyle 0+I} may be called even, while elements of the coset 1 + I {\displaystyle 1+I} may be called...
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are in GenP for all fixed finitely presented groups. The well known coset enumeration procedure admits a computable upper bound on a generic set of inputs...
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polyhedron, the polyhedra can be identified with the orbit space G/H – the coset gH corresponds to which polyhedron g sends the chosen polyhedron to. There...
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{R} /\mathbb {Q} } of these two groups which is the group formed by the cosets r + Q {\displaystyle r+\mathbb {Q} } of the rational numbers as a subgroup...
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uncountability of the real numbers Combinatorics Combinatory logic Co-NP Coset Countable countability of a subset of a countable set (to do) Angle of parallelism...
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These were enumerated by length in (Hanusa & Jones 2010). The parabolic subgroups of S ~ n {\displaystyle {\widetilde {S}}_{n}} and their coset representatives...
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"The Converse of the Intermediate Value Theorem: From Conway to Cantor to Cosets and Beyond" Missouri J. Math. Sci. 26 (2): 134–150 "Large Numbers, Part...
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G {\displaystyle e:J\to G} . Instead an enumeration of homomorphisms is used, and since such an enumeration can be constructed uniformly, it results...
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original Coxeter polytope in a manner prescribed by an appropriate Schreier coset graph). In the previous construction the manifolds obtained are always compact...
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left) Each row is a coset with the coset leader in the first column The entry in the i-th row and j-th column is the sum of the i-th coset leader and the j-th...
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( V ) / H {\displaystyle \mathbf {Gr} (k,V)=\mathrm {GL} (V)/H} of left cosets of H {\displaystyle H} . If the underlying field is R {\displaystyle \mathbf...
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elements of the Klein four-group. As with any connected Lie group, the coset spaces of the closed subgroups of the restricted Lorentz group, or homogeneous...
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size n. Then the pure state space of Hn can be identified with the compact coset space U ( n ) / ( U ( n − 1 ) × U ( 1 ) ) . {\displaystyle \operatorname...
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with subscript i 0 {\displaystyle i_{0}} which represents the principal coset (i.e., the subgroup H {\displaystyle H} itself) may be, but need not be...
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p. 17 Jones, Andrew R. (1996), "A Combinatorial Approach to the Double Cosets of the Symmetric Group with respect to Young Subgroups", European Journal...
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modeled on the decomposition of the real coordinate space Rn into the cosets x + Rp of the standardly embedded subspace Rp. The equivalence classes are...
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