Abstract
For a given closed oriented surface Σ, we introduce a chord index homomorphism from a subgroup of to the group of chord indices of a knot K in . Some knot invariants derived from this homomorphism are discussed.
Citation
Zhiyun Cheng. Hongzhu Gao. Mengjian Xu. "Chord index for knots in thickened surfaces." Illinois J. Math. 66 (4) 491 - 508, December 2022. https://doi.org/10.1215/00192082-10188162
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