搜索结果: 1-8 共查到“数学 1-cocycles”相关记录8条 . 查询时间(0.048 秒)
Reducibility of cocycles under a Brjuno-Russmann arithmetical condition
Brjuno-Russmann arithmetical condition Dynamical Systems
2011/9/19
Abstract: The arithmetics of the frequency and of the rotation number play a fun- damental role in the study of reducibility of analytic quasi-periodic cocycles which are sufficiently close to a const...
Non-Uniform hyperbolicity for infinite dimensional cocycles
Random operators dominated splitting multiplicative ergodic theorem Lyapunov exponents
2011/9/14
Abstract: Let H be an infinite dimensional separable Hilbert space, X a compact Hausdorff space and f : X \rightarrow X a homeomorphism which preserves a Borel ergodic measure which is positive on non...
Deformation of algebras associated to group cocycles
deformation Fell bundle K-theory Operator Algebras
2011/9/5
Abstract: We define a deformation of algebras endowed with coaction of the reduced group algebras. The deformation parameter is given by a 2-cocycle over the group. We prove K-theory isomorphisms for ...
Defining and Computing Topological Persistence for 1-cocycles
Topological Persistence 1-cocycles
2011/2/22
The concept of topological persistence, introduced recently in computational topology, finds applications in studying a map in relation to the topology of its domain. Since its introduction, it has be...
Cech cocycles for differential characteristic classes -- An infinity-Lie theoretic construction
Cech cocycles differential characteristic classes
2010/11/24
We define for every L-infinity algebra a smooth infinity-group integrating it, and define smooth principal infinity-bundles with connection. For every L-infinity-algebra cocycle of suitable degree, we...
Almost reducibility for finitely differentiable SL(2,R)-valued quasi-periodic cocycles
reducibility finitely differentiable SL(2,R)-valued quasi-periodic cocycles
2010/11/12
Quasi-periodic cocycles with a diophantine frequency and with values in SL(2,R) are shown to be almost reducible as long as they are close enough to a constant, in the topology of k times differentia...
A Geometric Construction of Cyclic Cocycles on Twisted Convolution Algebras
Geometric Construction Cyclic Cocycles Twisted Convolution Algebras
2010/12/14
The final copy of this thesis has been examined by the signatories, and we find that both the content and the form meet acceptable presentation standards of scholarly work in the above mentioned disci...
Note on Generalized Jordan Derivations Associate with Hochschild 2-cocycles of Rings
Derivation Jordan derivation generalized derivation generalized Jordan derivation Hochschild 2-cocycle
2010/2/26
We introduce a new type of generalized derivations associate with Hochschild 2-cocycles and prove that every generalized Jordan derivation of this type is a generalized derivation under certain condit...