Hopf-cyclic homology with contramodule coefficients Page 1 Hopf-cyclic homology with
contramodule coefficients Tomasz Brzezinski Abstract. A new class of coefficients for the …

This paper is an introduction to Hopf cyclic cohomology with an emphasis on its most recent
developments. We cover three major areas: the original definition of Hopf cyclic cohomology …

We studied some geometric properties of the Moyal sphere. Using the conformal metric of
the sphere in ordinary space and the matrix basis, we calculated the scalar curvature, total …

The relationship between comodules of a coring and flat connections is reviewed. In
particular we specialise to corings which are built on a tensor product of algebra and a …

Publisher Summary A coring is one of the most basic algebraic structures dual to that of a
ring (but also a ring itself can be viewed as a coring). The notion of a coring appeared first in …

The notions of Hom-coring, Hom-entwining structure and associated entwined Hom-module
are introduced. A theorem regarding base ring extension of a Hom-coring is proven and …

arXiv:0806.0389v2 [math.KT] 5 Jun 2008 Page 1 arXiv:0806.0389v2 [math.KT] 5 Jun 2008
HOPF-CYCLIC HOMOLOGY WITH CONTRAMODULE COEFFICIENTS TOMASZ BRZEZINSKI …

Hom-connections or noncommutative connections of the second type and associated
integral forms have been introduced and studied by T. Brzezinski as an adjoint version of the …

My research interests are split into two main areas. On the theoretical side, I work on
homological problems in noncommutative geometry (NCG). The roots of the subject lie in …

QUANTUM GROUPS AT INTERSECTION BETWEEN ALGEBRA AND GEOMETRY Page 1
QUANTUM GROUPS AT INTERSECTION BETWEEN ALGEBRA AND GEOMETRY by Mihai D …