De-Rham theorem and Shapiro lemma for Schwartz functions on Nash manifolds

TL;DR

This paper extends classical theorems like de-Rham and Shapiro lemma to Schwartz functions on Nash manifolds, providing new cohomological tools for algebraic and differential geometry.

Contribution

It proves analogs of de-Rham and Shapiro lemma for Schwartz functions on Nash manifolds, expanding the theoretical framework for these functions in geometric contexts.

Findings

Established de-Rham theorem analogs for Schwartz functions

Computed Lie algebra cohomologies with Schwartz coefficients

Extended classical results to semi-algebraic manifolds

Abstract

In this paper we continue our work on Schwartz functions and generalized Schwartz functions on Nash (i.e. smooth semi-algebraic) manifolds. Our first goal is to prove analogs of de-Rham theorem for de-Rham complexes with coefficients in Schwartz functions and generalized Schwartz functions. Using that we compute cohomologies of the Lie algebra of an algebraic group G with coefficients in the space of generalized Schwartz sections of G-equivariant bundle over a G-transitive variety M. We do it under some assumptions on topological properties of G and M. This computation for the classical case is known as Shapiro lemma.