69 citations · 215 across the 21 of their papers we have counts for
21 papers
Centers of Universal Enveloping Algebras
Yaping Yang, Daihao Zeng
The universal enveloping algebra of a current (super)algebra or loop (super)algebra is considered over an algebraically closed field $\mathbb{K}…
Higher spin representations of the Yangian of and R-matrices
Yaping Yang, Paul Zinn-Justin
We study higher spin (pure and mixed spin) representations of the Yangian of . We provide a geometric realization in terms of the critical cohomology of representa…
Frobenii on Morava -theoretical quantum groups
Yaping Yang, Gufang Zhao
In this paper, we study a family of new quantum groups labelled by a prime number and a natural number constructed using the Morava -theories. We define the quantum Frob…
Cohomological Hall algebras and perverse coherent sheaves on toric Calabi-Yau 3-folds
Miroslav Rapcak, Yan Soibelman, Yaping Yang +1
We study the Drinfeld double of the (equivariant spherical) Cohomological Hall algebra in the sense of Kontsevich and Soibelman, associated to a smooth toric Calabi-Yau 3-fold .…
The cohomological Hall algebras of a preprojective algebra with symmetrizer
Yaping Yang, Gufang Zhao
This paper aims at a geometric realization of the Yangian of non-simply laced type in terms of quiver with potentials. For every quiver with symmetrizer, there is an extended quive…
Positive level, negative level and level zero
Finn McGlade, Arun Ram, Yaping Yang
This is a survey on the combinatorics and geometry of integrable representations of quantum affine Lie algebras with a particular focus on level 0. Pictures and examples are includ…