First order deformations for rank one local systems with a non-vanishing cohomology
نویسندگان
چکیده
منابع مشابه
Non-vanishing on the first cohomology
— It is shown here that, for any finitely generated lattice r in certain semi simple groups over local fields of positive characteristics, H (r. Ad) is nonvanishing; this is in sharp contrast with the situation in characteristic zero. Let Kbe a local field (i. e. a non-discrete locally compact field), and let G be a connected semi simple algebraic group defined over K. Let G = G (K), and let r ...
متن کاملa new type-ii fuzzy logic based controller for non-linear dynamical systems with application to 3-psp parallel robot
abstract type-ii fuzzy logic has shown its superiority over traditional fuzzy logic when dealing with uncertainty. type-ii fuzzy logic controllers are however newer and more promising approaches that have been recently applied to various fields due to their significant contribution especially when the noise (as an important instance of uncertainty) emerges. during the design of type- i fuz...
15 صفحه اولLocal Vanishing of Characteristic Cohomology
Introduction. To a smooth manifold M one can associate in a natural way a new smooth manifold, the manifold of k-jets of n-dimensional submanifolds of M , indicated by G n (M), which parametrizes in a smooth way the k-jets of immersed submanifolds ofM . OnG n (M) one can build in a canonical way a differential ideal, denoted . The cohomology associated to the complexG n (M)/ (k) is called chara...
متن کاملVanishing of First Cohomology for Arithmetic Groups of Higher Real Rank
Let Γ be an arithmetic subgroup of G = SL(n,R), with n > 2. (More generally, Γ could be any irreducible arithmetic subgroup of any semisimple Lie group of higher real rank.) We will describe a proof (due to Margulis) that the first cohomology of Γ vanishes (with coefficients in any finite-dimensional real representation). The result is a consequence of the much stronger statement, known as the ...
متن کاملLocal stabilization for a class of nonlinear impulsive switched system with non-vanishing uncertainties under a norm-bounded control input
Stability and stabilization of impulsive switched system have been considered in recent decades, but there are some issues that are not yet fully addressed such as actuator saturation. This paper deals with expo-nential stabilization for a class of nonlinear impulsive switched systems with different types of non-vanishing uncertainties under the norm-bounded control input. Due to the constraine...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Topology and its Applications
سال: 2002
ISSN: 0166-8641
DOI: 10.1016/s0166-8641(01)00048-7