4 papers
Symmetric quiver varieties and critical stable envelopes
Yalong Cao, Andrei Okounkov, Yehao Zhou +1
Symmetric quiver varieties with potentials are natural generalizations of Nakajima quiver varieties, and their equivariant critical cohomologies provide more flexible settings for…
Shifted quantum groups via critical stable envelopes
Yalong Cao, Andrei Okounkov, Yehao Zhou +1
Given a symmetric quiver with potential, we develop a geometric construction of shifted Yangians acting on the critical cohomologies of antidominantly framed quiver varieties with…
Stable envelopes for critical loci
Yalong Cao, Andrei Okounkov, Yehao Zhou +1
This is the first in a sequence of papers devoted to stable envelopes in critical cohomology and critical -theory for symmetric GIT quotients with potentials and related geometr…
The 2-leg vertex in K-theoretic DT theory
Ya. Kononov, A. Okounkov, A. Osinenko
K-theoretic Donaldson-Thomas counts of curves in toric and many related threefolds can be computed in terms of a certain canonical 3-valent tensor, the K-theoretic equivariant vert…