A Bennequin-type inequality and combinatorial bounds

Abstract

In this paper we provide a new Bennequin-type inequality for the Rasmussen- Beliakova-Wehrli invariant, featuring the numerical transverse braid invariants (the c-invariants) introduced by the author. From the Bennequin type-inequality, and a combinatorial bound on the value of the c-invariants, we deduce a new computable bound on the Rasmussen invariant.

24 pages, 5 figures and 2 tables. Minor revisions, title changed

References in corpus (5)

• New Quantum Obstructions to Sliceness
• The Karoubi envelope and Lee's degeneration of Khovanov homology
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