Virtual classes of parabolic ${\mathrm{SL}}_2(\mathbb{C})$-character varieties

Abstract

In this paper, we compute the virtual classes in the Grothendieck ring of algebraic varieties of ${\mathrm{SL}}_2(\mathbb{C})$-character varieties over compact orientable surfaces with parabolic points of semi-simple type. When the parabolic punctures are chosen to be semi-simple non-generic, we show that a new interaction phenomenon appears generating a recursive pattern.

33 pages, 1 figure. Minor corrections added