"Skein relation" refers to a concept in the study of knots and links within the field of topology, specifically in knot theory. Skein relations are equations that express the relationships between different knots or links under certain conditions. These relations are often used in the computation of polynomial invariants of knots and links, such as the Jones polynomial or the HOMFLY-PT polynomial. The basic idea behind skein relations is to define a knot or link in terms of simpler components.
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