Alperin’s Conjecture for Algebraic Groups

نویسنده

  • GERHARD RÖHRLE
چکیده

We prove analogues for reductive algebraic groups of some results for finite groups due to Knörr and Robinson from ‘Some remarks on a conjecture of Alperin’, J. London Math. Soc (2) 39 (1989), 48–60, which play a central rôle in their reformulation of Alperin’s conjecture for finite groups.

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Chain complexes for Alperin’s weight conjecture and Dade’s ordinary conjecture in the abelian defect group case∗

We give an axiomatic concept for the construction of contractible chain complexes whose existence implies Dade’s ordinary conjecture and Alperin’s weight conjecture and we show that in the abelian defect group case such chain complexes exist if a weaker form of Broué’s conjecture holds.

متن کامل

Modular Representation Theory of Blocks with Trivial Intersection Defect Groups

We show that Uno’s refinement of the projective conjecture of Dade holds for every block whose defect groups intersect trivially modulo the maximal normal p-subgroup. This corresponds to the block having p-local rank one as defined by Jianbei An and Eaton. An immediate consequence is that Dade’s projective conjecture, Robinson’s conjecture, Alperin’s weight conjecture, the Isaacs– Navarro conje...

متن کامل

A Method for Integral Cohomology of Posets

Homotopy type of partially ordered sets (poset for short) play a crucial role in algebraic topology. In fact, every space is weakly equivalent to a simplicial complex which, of course, can be considered as a poset. Posets also arise in more specific contexts as homological decompositions [10, 6, 16, 20] and subgroups complexes associated to finite groups [7, 26, 4]. The easy structure of a pose...

متن کامل

Standard Stratifications of Ei Categories and Alperin’s Weight Conjecture

We characterize the finite EI categories whose representations are standardly stratified with respect to the natural preorder on the simple representations. The orbit category of a finite group with respect to any set of subgroups is always such a category. Taking the subgroups to be the p-subgroups of the group, we reformulate Alperin’s weight conjecture in terms of the standard and proper cos...

متن کامل

Frankl's Conjecture for a subclass of semimodular lattices

 In this paper, we prove Frankl's Conjecture for an upper semimodular lattice $L$ such that $|J(L)setminus A(L)| leq 3$, where $J(L)$ and $A(L)$ are the set of join-irreducible elements and the set of atoms respectively. It is known that the class of planar lattices is contained in the class of dismantlable lattices and the class of dismantlable lattices is contained in the class of lattices ha...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2007