Topological Quantum Field Theory Seminar   RSS

07/05/2019, 12:00 — 13:00 — Room P3.10, Mathematics Building
Federico Cantero, University of Barcelona, Spain

Higher Steenrod squares for Khovanov homology

We describe stable cup-$i$ products on the cochain complex with $\mathbb{F}_2$ coefficients of any augmented semi-simplicial object in the Burnside category. An example of such an object is the Khovanov functor of Lawson, Lipshitz and Sarkar. Thus we obtain explicit formulas for cohomology operations on the Khovanov homology of any link.

Please note the unusual day for the seminar.

Projecto FCT UID/MAT/04459/2019.

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Current organizers: Roger Picken, John Huerta, Marko Stošić.


FCT Projects PTDC/MAT-GEO/3319/2014, Quantization and Kähler Geometry, PTDC/MAT-PUR/31089/2017, Higher Structures and Applications.