Blow-up formulae for twisted cohomologies with supports

TL;DR

This paper develops explicit blow-up formulae for twisted cohomologies on complex and smooth manifolds, utilizing complex morphisms to extend results to various twisted cohomology theories.

Contribution

It introduces explicit complex-based blow-up formulae for twisted Dolbeault and de Rham cohomologies, extending to Bott-Chern, Aeppli, and hypercohomologies.

Findings

Derived explicit formulas for twisted Dolbeault cohomology blow-ups.

Established Kunneth, Leray-Hirsch, and self-intersection theorems for twisted cohomologies.

Extended results to generalized blow-ups and various twisted cohomology theories.

Abstract

We study twisted cohomologies with paracompactifying families of supports. The Kunneth theorems, Leray-Hirsch theorems and self-intersection formulae are established. Based on these results, we eventually give explicit expressions of complex blow-up formulae for twisted Dolbeault cohomology on arbitrary complex manifolds and the ones of generalized blow-ups formulae for twisted de Rham cohomology on arbitrary oriented smooth manifolds. These expressions are induced by the morphisms of (simple or double) complexes of spaces of forms and currents rather than just the maps between cohomologies, which help us to obtain the corresponding results for twisted Bott-Chern, Aeppli cohomologies and hypercohomologies of truncated twisted holomorphic de Rham complexes.