Degtyarev, A.2016-02-082016-02-0820080046-5755http://hdl.handle.net/11693/22906We classify projective symmetries of irreducible plane sextics with simple singularities which are stable under equivariant deformations. We also outline a connection between order 2 stable symmetries and maximal trigonal curves. © 2008 Springer Science+Business Media B.V.EnglishPlane sexticSymmetryTorus typeTrigonal curveArticle10.1007/s10711-008-9293-61572-9168