Computing the Thurston–Bennequin invariant in open books
Acta Mathematica Hungarica(2016)
摘要
We give explicit formulas and algorithms for the computation of the Thurston–Bennequin invariant of a nullhomologous Legendrian knot on a page of a contact open book and on Heegaard surfaces in convex position. Furthermore, we extend the results to rationally nullhomologous knots in arbitrary 3-manifolds.
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关键词
Thurston–Bennequin invariant,Legendrian knot,open book
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