Results 11 to 20 of about 86,062 (223)
Stability of the replica-symmetric saddle point in general mean-field spin-glass models [PDF]
, 2010 Within the replica approach to mean-field spin glasses the transition from ergodic high-temperature behaviour to the glassy low-temperature phase is marked by the instability of the replica-symmetric saddle point.
K. Janzen, A. Engel
semanticscholar +3 more sources
On the number of conjugacy classes of a permutation group [PDF]
, 2014 We prove that any permutation group of degree $n \geq 4$ has at most $5^{(n-1)/3}$ conjugacy classes.Comment: 9 ...
Garonzi, Martino, Maróti, Attila
core +3 more sources
Trivial source bimodule rings for blocks and p-permutation equivalences [PDF]
, 2009 We associate with any p-block of a finite group a Grothendieck ring of certain p-permutation bimodules. We extend the notion of p-permutation equivalences introduced by Boltje and Xu [4] to source algebras of p-blocks of finite groups.
Linckelmann, M.
core +1 more source
Equivalences between blocks of cohomological Mackey algebras [PDF]
, 2014 Let $G$ be a finite group and $(K,\mathcal{O},k)$ be a $p$-modular system "large enough". Let $R=\mathcal{O}$ or $k$. There is a bijection between the blocks of the group algebra $RG$ and the central primitive idempotents (the blocks) of the so-called ...
Rognerud, Baptiste
core +2 more sources
On Maximum Contention-Free Interleavers and Permutation Polynomials over Integer Rings [PDF]
, 2005 An interleaver is a critical component for the channel coding performance of turbo codes. Algebraic constructions are of particular interest because they admit analytical designs and simple, practical hardware implementation. Contention-free interleavers
Takeshita, Oscar Y.
core +2 more sources
Generalized Gray Codes for Local Rank Modulation [PDF]
, 2011 We consider the local rank-modulation scheme in which a sliding window going over a sequence of real-valued variables induces a sequence of permutations.
Eyal En Gad +4 more
core +6 more sources
The classification of torsion endo-trivial modules
, 2007 This paper is a major step in the classification of endotrivial modules over p-groups. Let G be a finite p-group and k be a field of characteristic p. A kG-module M is an endo-trivial module if {\End_k(M)\cong k\oplus F} as kG-modules, where F is a free ...
Carlson, Jon F., Thevenaz, Jacques
core +1 more source
Universal countable Borel quasi-orders [PDF]
, 2013 In recent years, much work in descriptive set theory has been focused on the Borel complexity of naturally occurring classification problems, in particular, the study of countable Borel equivalence relations and their structure under the quasi-order of ...
Williams, Jay
core +4 more sources
Minimal generation of transitive permutation groups [PDF]
, 2018 It is proved in [21] that there is a constant $c$ such that each transitive permutation group of degree $d\ge 2$ can be generated by $\lfloor cd/\sqrt{\log{d}}\rfloor$ elements. In this paper, we explicitly estimate $c$
Tracey, Gareth M.
core +2 more sources
The biHecke monoid of a finite Coxeter group
, 2009 The usual combinatorial model for the 0-Hecke algebra of the symmetric group is to consider the algebra (or monoid) generated by the bubble sort operators. This construction generalizes to any finite Coxeter group W. The authors previously introduced the
Hivert, Florent +2 more
core +1 more source