Results 11 to 20 of about 178 (25)

Eisenstein Cohomology and ratios of critical values of Rankin-Selberg L-functions

open access: yes, 2011
This is an announcement of results on rank-one Eisenstein cohomology of GL(N), with N > 1 an odd integer, and algebraicity theorems for ratios of successive critical values of certain Rankin-Selberg L-functions for GL(n) x GL(n') when n is even and n' is
Harder, Guenter, Raghuram, A.
core   +1 more source

Automorphic forms and rational homology 3–spheres [PDF]

open access: yes, 2006
We investigate a question of Cooper adjacent to the Virtual Haken Conjecture. Assuming certain conjectures in number theory, we show that there exist hyperbolic rational homology 3–spheres with arbitrarily large injectivity radius.
Calegari, Frank, Dunfield, Nathan M.
core   +6 more sources

Shintani Cocycles on $\GL_{n}$

open access: yes, 2007
The aim of this paper is to define an n-1-cocycle $\sigma$ on $\GL_{n}(\Q)$ with values in a certain space $\hD$ of distributions on $\A_f^{n}\setminus\{0\}$. Here $\A_f$ denotes the ring of finite ad\`{e}les of $\Q$, and the distributions take values in
Hill, Richard
core   +1 more source

The mod 2 cohomology rings of congruence subgroups in the Bianchi groups [PDF]

open access: yes, 2019
We provide new tools for the calculation of the torsion in the cohomology of congruence subgroups in the Bianchi groups : An algorithm for finding particularly useful fundamental domains, and an analysis of the equivariant spectral sequence combined with
Berkove, Ethan   +4 more
core   +2 more sources

Multiple period integrals and cohomology

open access: yes, 2015
This work gives a version of the Eichler-Shimura isomorphism with a non-abelian $H^1$ in group cohomology. Manin has given a map from vectors of cusp forms to a noncommutative cohomology set by means of iterated integrals.
Bruggeman, Roelof, Choie, YoungJu
core   +1 more source

On lower bounds for cohomology growth in p-adic analytic towers

open access: yes, 2013
Let p and l be two distinct prime numbers and let G be a group. We study the asymptotic behaviour of the mod-l Betti numbers in p-adic analytic towers of finite index subgroups.
Kionke, Steffen
core   +1 more source

On the Eisenstein cohomology of odd orthogonal groups

open access: yes, 2011
The paper investigates a significant part of the automorphic, in fact of the so-called Eisenstein cohomology of split odd orthogonal groups over Q. The main result provides a description of residual and regular Eisenstein cohomology classes for maximal ...
Borel   +18 more
core   +1 more source

Boundary and Eisenstein Cohomology of $\mathrm{SL}_3(\mathbb{Z})$

open access: yes, 2020
In this article, several cohomology spaces associated to the arithmetic groups $\mathrm{SL}_3(\mathbb{Z})$ and $\mathrm{GL}_3(\mathbb{Z})$ with coefficients in any highest weight representation $\mathcal{M}_\lambda$ have been computed, where $\lambda ...
Bajpai, Jitendra   +3 more
core   +1 more source

Perfect forms over totally real number fields [PDF]

open access: yes, 2009
A rational positive-definite quadratic form is perfect if it can be reconstructed from the knowledge of its minimal nonzero value m and the finite set of integral vectors v such that f(v) = m.
Gunnells, Paul E., Yasaki, Dan
core   +2 more sources

Modular forms and elliptic curves over the field of fifth roots of unity [PDF]

open access: yes, 2010
Let F be the cyclotomic field of fifth roots of unity. We computationally investigate modularity of elliptic curves over F.Comment: Added appendix by Mark Watkins, who found an elliptic curve missing from our ...
Gunnells, Paul E.   +2 more
core   +2 more sources

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