Answers are grounded in this paper and cite their sources.
We study the back stable K-theory Schubert calculus of the infinite flag variety. We define back stable (double) Grothendieck polynomials and double K-Stanley functions and establish coproduct expansion formulae. Applying work of Weigandt, we extend our previous results on bumpless pipedreams from cohomology to K-theory. We study finiteness and positivity properties of the ring of back stable Grothendieck polynomials and divided difference operators in K-homology.
No takes yet. Share an insight, caveat, or question.
Lam et al. (2022) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: