The finiteness result for Khovanov homology and localization in monoidal categories

Functoriality of Khovanov homology

In this paper we prove that every Khovanov homology associated to a Frobenius algebra of rank $2$ can be modified in such a way as to produce a TQFT on oriented links, that is a monoidal functor from the category of cobordisms of oriented links to the homotopy category of complexes.

Khovanov homology and categorification of skein modules

For every oriented surface of finite type, we construct a functorial Khovanov homology for links in a thickening of the surface, which takes values in a categorification of the corresponding gl(2) skein module. The latter is a mild refinement of the Kauffman bracket skein algebra, and its categorification is constructed using a category of gl(2) foams that admits an interesting non-negative grading. We expect that the natural algebra structure on the gl(2) skein module can be categorified by a tensor product that makes the surface link homology functor monoidal. We construct a candidate bifunc…

Flag Hilbert schemes, colored projectors and Khovanov-Rozansky homology

We construct a categorification of the maximal commutative subalgebra of the type $A$ Hecke algebra. Specifically, we propose a monoidal functor from the (symmetric) monoidal category of coherent sheaves on the flag Hilbert scheme to the (non-symmetric) monoidal category of Soergel bimodules. The adjoint of this functor allows one to match the Hochschild homology of any braid with the Euler characteristic of a sheaf on the flag Hilbert scheme. The categorified Jones-Wenzl projectors studied by Abel, Elias and Hogancamp are idempotents in the category of Soergel bimodules, and they correspond t…

环形 Khovanov--Rozansky 同调的评估

Evaluations of annular Khovanov--Rozansky homology

本文用自由对称幺半范畴的同伦范畴描述环形 Khovanov-Rozansky 同调函子的万有目标，并借助 plethystic 变换的范畴类比刻画 Coxeter 辫不变量，同时证明缆结缠结上的对称群作用并构造计算广义 Hopf 链环同调的谱序列。

从泡沫评估构建单向2范畴

Monoidal 2-categories from foam evaluation

本文提出通过闭合泡沫评估公式构建半严格单向2范畴，应用于链同调理论中的例子，包括gl(N)-泡沫和Bar-Natan装饰边界范畴。

Link splitting deformation of colored Khovanov--Rozansky homology

We introduce a multi-parameter deformation of the triply-graded Khovanov--Rozansky homology of links colored by one-column Young diagrams, generalizing the "$y$-ified" link homology of Gorsky--Hogancamp and work of Cautis--Lauda--Sussan. For each link component, the natural set of deformation parameters corresponds to interpolation coordinates on the Hilbert scheme of the plane. We extend our deformed link homology theory to braids by introducing a monoidal dg 2-category of curved complexes of type $A$ singular Soergel bimodules. Using this framework, we promote to the curved setting the categ…