2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/126827We review Bennequin type inequalities established using various versions of the Khovanov-Rozansky cohomology. Then we give a new proof of a Bennequin type inequality established by the author, and derive new Bennequin type inequalities for knots using Gornik's version of the Khovanov-Rozansky cohomology, which generalize those established by Shumakovitch, Plamenevskaya and Kawamura using the Rasmussen invariant.10 pages, 6 figuresGeometric TopologySymplectic GeometryPrimary 57M25, Secondary 57R17text