On the number of factors in the unipotent factorization of holomorphic mappings into ${\text{SL}}_2(\mathbb{C})$

Björn Ivarsson, Frank Kutzschebauch

We estimate the number of unipotent elements needed to factor a null-homotopic holomorphic map from a finite dimensional reduced Stein spaces $X$ into ${\text{SL}}_2(\mathbb{C})$.