23 citations · 23 across the 2 of their papers we have counts for
4 papers
Feynman graphs, rooted trees, and Ringel-Hall algebras
Kobi Kremnizer, Matthew Szczesny
We construct symmetric monoidal categories $\LRF, \FD$ of rooted forests and Feynman graphs. These categories closely resemble finitary abelian categories, and in particular, the n…
2-gerbes and 2-Tate spaces
Sergey Arkhipov, Kobi Kremnizer
We construct a central extension of the group of automorphisms of a 2-Tate vector space viewed as a discrete 2-group. This is done using an action of this 2-group on a 2-gerbe of g…
Localization for quantum groups at a root of unity
Erik Backelin, Kobi Kremnizer
In the paper \cite{BK} we defined categories of equivariant quantum -modules and -modules on the quantum flag variety of . We proved that the Beili…
Quantum flag varieties, equivariant quantum D-modules and localization of quantum groups
Erik Backelin, Kobi Kremnizer
Let $\Oq(G)$ be the algebra of quantized functions on an algebraic group and $\Oq(B)$ its quotient algebra corresponding to a Borel subgroup of . We define the category…