On the arithmetic of Shalika models and the critical values of L-functions for GL2n

H Grobner, A Raghuram, WT Gan - American Journal of Mathematics, 2014 - muse.jhu.edu
Let $\Pi $ be a cohomological cuspidal automorphic representation of ${\rm GL} _ {2n}(\Bbb
{A}) $ over a totally real number field $ F $. Suppose that $\Pi $ has a Shalika model. We …

Residues of Eisenstein series and the automorphic cohomology of reductive groups

H Grobner - Compositio Mathematica, 2013 - cambridge.org
Residues of Eisenstein series and the automorphic cohomology of reductive groups Page 1
COMPOSITIO MATHEMATICA Residues of Eisenstein series and the automorphic …

[PDF][PDF] The Franke filtration of the spaces of automorphic forms on the symplectic group of rank two

N Grbac - Memoirs of the American Mathematical Society, to …, 2023 - tania.unipu.hr
The Franke filtration is a finite filtration of the space of automorphic forms on a connected
reductive linear algebraic group defined over an algebraic number field. The main feature of …

Ghost classes in the cohomology of the Shimura variety associated to 𝐺𝑆𝑝₄

M Moya Giusti - Proceedings of the American Mathematical Society, 2018 - ams.org
In this paper we study the existence of ghost classes in the cohomology of the Shimura
variety associated to the group of symplectic similitudes $ GSp_4 $. The existence of ghost …

Endoscopic transfer and automorphic L-functions: the case of the general spin group and the twisted symmetric and exterior square L-functions

N Grbac - Rad Hrvatske akademije znanosti i umjetnosti …, 2024 - hrcak.srce.hr
Sažetak The endoscopic classification and the Langlands spectral theory are two
approaches to the discrete spectrum of the group of adèlic points of a reductive linear …

Some unexpected phenomena in the Franke filtration of the space of automorphic forms of the general linear group

N Grbac, H Grobner - Israel journal of mathematics, 2024 - Springer
Abstract In his famous paper [11], J. Franke has defined a certain finite filtration of the space
of automorphic forms of a general reductive group, which captures most of its internal …

A construction of residues of Eisenstein series and related square-integrable classes in the cohomology of arithmetic groups of low k-rank

N Grbac, J Schwermer - Forum mathematicum, 2019 - degruyter.com
The cohomology of an arithmetic congruence subgroup of a connected reductive algebraic
group defined over a number field is captured in the automorphic cohomology of that group …

Eisenstein series for rank one unitary groups and some cohomological applications

N Grbac, J Schwermer - Advances in mathematics, 2021 - Elsevier
Let U/Q be a unitary group of Q-rank one so that the group of real points U (R)≅ U (n, 1). The
group U is only quasi-split over Q if and only if n= 1, 2. The cohomology of a congruence …

Cohomology of Local Systems on Siegel Threefolds with Square-Free Parahoric Level

A Shmakov - 2024 - search.proquest.com
The present thesis provides a survey of results and techniques from the Langlands program
which allow for the computation of the ℓ-adic cohomology of local systems on Shimura …

Eisenstein Cohomology and Automorphic L-Functions

N Grbac - Cohomology of Arithmetic Groups: On the Occasion of …, 2018 - Springer
During the past ten years of the most inspiring and very fruitful collaboration with Joachim
Schwermer, we have carefully studied the non-vanishing conditions for certain summands in …