ON MATRIX TYPE CORINGS, ALGEBRA COVERINGS AND ČECH COHOMOLOGY
نویسندگان
چکیده
منابع مشابه
On matrix type corings, algebra coverings and Čech cohomology
We investigate the a matrix-type coring associated to a complete covering of an algebra, its Amitsur complex and propose a definition for the related Čech cohomology relative to the covering.
متن کاملDescent Cohomology and Corings
A coring approach to non-Abelian descent cohomology of [P. Nuss & M. Wambst, Non-Abelian Hopf cohomology, Preprint arXiv:math.KT/0511712, (2005)] is described and a definition of a Galois cohomology for partial group actions is proposed.
متن کاملZ2-graded Čech Cohomology in Noncommutative Geometry ∗ Do Ngoc Diep
The Z 2-gradedČech cohomology theory is considered in the framework of noncommutative geometry over complex number field and in particular the homotopy invariance and Morita invariance are proven. In some special case we deduce an isomorphism between this noncom-mutative theory and the classical Z 2-gradedČech cohomology theory.
متن کاملOn Corings and Comodules
It is shown that the categories of R-coalgebras for a commutative unital ring R and the category of A-corings for some R-algebra A as well as their respective categories of comodules are locally presentable.
متن کاملSome results on Haar wavelets matrix through linear algebra
Can we characterize the wavelets through linear transformation? the answer for this question is certainly YES. In this paper we have characterized the Haar wavelet matrix by their linear transformation and proved some theorems on properties of Haar wavelet matrix such as Trace, eigenvalue and eigenvector and diagonalization of a matrix.
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ژورنال
عنوان ژورنال: International Journal of Geometric Methods in Modern Physics
سال: 2007
ISSN: 0219-8878,1793-6977
DOI: 10.1142/s0219887807002454