Westerdale, T.H.: Quasimorphisms or Queasymorphisms? Modelling Finite Automaton Environments. In: Rawlins [519], pp. 128–147Thomas H. Westerdale. Quasimorphisms or Queasymorphisms? Modelling Finite Automaton Environments. In Rawlins {422}, pages 128-147....
Modular Representations of Finite Groups of Lie Type in Non-defining Characteristic Let us consider a connected reductive algebraic group G , defined over the finite field F q with corresponding Frobenius morphism F . We are concerned ... M Geck - Birkhäuser Boston 被引量: 81发表: 2011年 ...
We show that a group admits a non-zero homogeneous quasimorphism if and only if it admits a certain type of action on a poset. Our proof is based on a construction of quasimorphisms which generalizes Poincar\\'e--Ghys' construction of th... GB Simon,T Hartnick - 《Mathematics》 被引...
Notethat since for every central chief factorH=Kan element ofGinduces the trivial auto-morphism onH=K, one can say that a groupGis quasinilpotent if for everynon-centralchief factorH=KofGand everyxAG,xinduces an inner automorphismonH=K. This elementary observation allows us to consider the ...
(covering maps, homotopies, and groupoids, lifting sums and morphisms, lifted topologies, equivalence of categories, induced coverings and pullbacks, applications to group theory, orbit spaces and groupoids, quotients, semi-direct ... R Brown - Ellis Horwood , Halsted Press 被引量: 207发表:...
Abelian groups without finite rank twisting at an accuracy of quasi-morphismFomin Alexander Alexandrovich
We say that a Lie algebra g is quasi-state rigid if every Ad-invariant continuous Lie quasi-state on it is the directional derivative of a homogeneous quasimorphism. Extending work of Entov and Polterovich, we show that every reductive Lie algebra, as well as the algebras Cn u(n), n...
quasi-diagonal iso-morphismsLet 1 < anoo, K be a function on the set of positive integers into itself and x denotesthe characteristic function of [0, co). We consider the Kothe spaces of type D_iD(κ,γ, a) =\nκ([a_(pn)])where apn=exp([p+ γnX(pκ_n)] an),p iEN,...
The most striking results that we obtain are certainly that the linear span of finite spaces carries the structure of the enveloping algebra of aB∞-algebra, and that there are natural (Hopf algebraic) morphisms between finite spaces and quasi-symmetric functions. In the process, we introduce ...
If C is a strict braided monoidal category in which the idempotent morphisms have a canonical split, we find conditions under which the antipode of a Hopf (co)quasigroup is an isomorphism. We also prove that the object of (co)invariants of a finite Hopf (co)quasigroup in is an ...