Skein lasagna modules for 2-handlebodies

Ciprian Manolescu, Ikshu Neithalath

Research output: Contribution to journalJournal articleResearchpeer-review


Morrison, Walker, and Wedrich used the blob complex to construct a generalization of Khovanov-Rozansky homology to links in the boundary of a 4-manifold. The degree zero part of their theory, called the skein lasagna module, admits an elementary definition in terms of certain diagrams in the 4-manifold. We give a description of the skein lasagna module for 4-manifolds without 1- and 3-handles, and present some explicit calculations for disk bundles over S2.

Original languageEnglish
JournalJournal fur die Reine und Angewandte Mathematik
Issue number788
Pages (from-to)37-76
Publication statusPublished - 1. Jul 2022


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