Resumen de The Rasmussen invariants and the sharper slice-Bennequin inequality on knots

Tomomi Kawamura

• Rasmussen introduced a knot invariant based on Khovanov homology theory, and showed that this invariant estimates the four-genus of knots. We compare his result with the sharper slice-Bennequin inequality for knots. Then we obtain a similar estimate of the Rasmussen invariant for this inequality.