Free-fermions and canonical Grothendieck polynomials
arXiv:2211.05002
Abstract
We give a presentation of refined (dual) canonical Grothendieck polynomials and their skew versions using free-fermions. Using this, we derive a number of identities, including the skew Cauchy identities, branching rules, expansion formulas, and integral formulas.
arXiv comment30 pages; v2 corrected typos and other minor changes