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Differential expansion for link polynomials
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DOI：10.1016/j.physletb.2018.01.026.png)
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摘要
En 中文
The differential expansion is one of the key structures reflecting group theory properties of colored knot polynomials, which also becomes an important tool for evaluation of non-trivial Racah matrices. This makes highly desirable its extension from knots to links, which, however, requires knowledge of the 6j-symbols, at least, for the simplest triples of non-coincident representations. Based on the recent achievements in this direction, we conjecture a shape of the differential expansion for symmetrically-colored links and provide a set of examples. Within this study, we use a special framing that is an unusual extension of the topological framing from knots to links. In the particular cases of Whitehead and Borromean rings links, the differential expansions are different from the previously discovered. (C) 2018 The Author(s). Published by Elsevier B.V.
Keyword:
KNOT POLYNOMIALS
RACAH MATRICES
FIELD-THEORY
INVARIANTS
EVOLUTION
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期刊
IF:
4.5
论文数:
3.2W
被引数:
7.3W
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