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EQUIVARIANT FLOW EQUIVALENCE FOR SHIFTS OF FINITE TYPE,BY MATRIX EQUIVALENCE OVER GROUP RINGS
EQUIVARIANT FLOW EQUIVALENCE SHIFTS OF FINITE TYPE MATRIX EQUIVALENCE OVER GROUP RINGS
2015/9/29
Let G be a finite group. We classify G-equivariant flow equivalence of nontrivial irreducible shifts of finite type interms of (i) elementary equivalence of matrices over ZG and (ii) the conjugacy cla...
Brauer's generalized decomposition numbers and universal deformation rings
Universal deformation rings Brauer’s generalized decomposition numbers tame blocks dihedral defect groups semidihedral defect groups
2012/4/17
We study the problem of lifting to local rings certain mod 2 representations V of finite groups G which belong to 2-modular tame blocks B of G having at least two isomorphism classes of simple modules...
We give a list of finite groups containing all finite groups G such that the group of units ZG∗ of the integral group ring ZG is subgroup separable. There are only two types of these groups G fo...
Torsion units in integral group rings of Conway simple groups
Zassenhaus conjecture torsion unit partial augmentation
2011/2/24
Using the Luthar–Passi method, we investigate the possible orders and partial augmentations of torsion units of the normalized unit group of integral group rings of Conway simple groups Co1, Co2 and C...
On Intuitionistic Fuzzy Subhypernear-rings of Hypernear-Rings
Fuzzy subhypernear-ring intuitionistic fuzzy subhypernear-ring upper (resp. lower) t-level cut homomorphism
2010/3/1
In this paper, we introduce the concept of an intuitionistic fuzzy subhypernear-ring of a hypernear-ring and obtain some results in this connection.
Some Commutativity Results for S -unital Rings
Automorphisms commutativity theorems nilpotent elements polynomial constraints s-unital rings
2010/3/1
In the present paper, it is shown that if R is a left ( resp. right) s-unital ring satisfying [f(ymxrys) \pm xty, x] = 0 (resp. [f(ymxrys) \pm yxt, x] = 0), where m, r, s, t are fixed non-negative int...
Some characterizations of strongly regular rings will be given. Let R be a ring and I(\neq R) a right ideal of R. If, for each pair of right ideals A and B of R, AB \subseteq I implies that either A \...