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arXiv · 2009.13486

Boundary and Eisenstein Cohomology of $G_2(\mathbb{Z})$

Jitendra Bajpai·Lifan Guan
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Abstract

In this article, Eisenstein cohomology of the arithmetic group $G_2(\mathbb{Z})$ with coefficients in any finite dimensional highest weight irreducible representation has been determined. We accomplish this by studying the cohomology of the boundary of the Borel-Serre compactification.

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Jitendra Bajpai, Lifan Guan. 2020-09-28. Boundary and Eisenstein Cohomology of $G_2(\mathbb{Z})$. https://arxiv.org/abs/2009.13486

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