نتایج جستجو برای: cocycle
تعداد نتایج: 892 فیلتر نتایج به سال:
Journal:
:The Quarterly Journal of Mathematics
2017
Journal:
:Mediterranean Journal of Mathematics
2021
We extend the quandle cocycle invariant to oriented singular knots and links using algebraic structures called singquandles assigning weight functions at both regular crossings. This coincides with classical for knots, but provides extra information about links. The new distinguishes granny knot from square knot.
Journal:
:Proceedings of the London Mathematical Society
2009
Journal:
:Proceedings of the American Mathematical Society
2016
Journal:
:Ergodic Theory and Dynamical Systems
2011
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