What is a right-handed Dehn twist of a cut curve of a Riemann surface? - MathOverflow most recent 30 from http://mathoverflow.net 2013-05-23T22:17:02Z http://mathoverflow.net/feeds/question/29348 http://www.creativecommons.org/licenses/by-nc/2.5/rdf http://mathoverflow.net/questions/29348/what-is-a-right-handed-dehn-twist-of-a-cut-curve-of-a-riemann-surface What is a right-handed Dehn twist of a cut curve of a Riemann surface? Jun Lu 2010-06-24T07:03:35Z 2010-06-24T09:23:19Z <p>Let \$\Sigma_g\$ be a Riemann surface of genus g, and \$C\$ is a cut curve of \$\Sigma_g\$, i.e. an oriented simple close curve. </p> <p>What is a right-handed Dehn twist of \$C\$ of \$\Sigma_g\$? </p> http://mathoverflow.net/questions/29348/what-is-a-right-handed-dehn-twist-of-a-cut-curve-of-a-riemann-surface/29355#29355 Answer by Bugs Bunny for What is a right-handed Dehn twist of a cut curve of a Riemann surface? Bugs Bunny 2010-06-24T08:52:28Z 2010-06-24T09:23:19Z <p>Cut the curve with a scalpel, going along the curve (it is oriented), rotate the right side 360 degrees, and glue it back in...</p>