Genus one cobordisms between torus knots

Autor: Feller, Peter, Park, JungHwan
Rok vydání: 2019
Předmět:
Druh dokumentu: Working Paper
DOI: 10.1093/imrn/rnaa027
Popis: We determine the pairs of torus knots that have a genus one cobordism between them, with one notable exception. This is done by combining obstructions using $\nu^+$ from the Heegaard Floer knot complex and explicit constructions of cobordisms. As an application, we determine the pairs of torus knots related by a single crossing change. Also, we determine the pairs of Thurston-Bennequin number maximizing Legendrian torus knots that have a genus one exact Lagrangian cobordism, with one exception.
Comment: 20 pages, 12 figures. V3: Minor corrections and implementation of referee's recommendations. This version has been accepted for publication by IMRN
Databáze: arXiv