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We define counting and cocycle enhancement invariants of virtual knots using parity biquandles. These invariants are determined by pairs consisting of a biquandle 2-cocycle \phi^0 and a map \phi^1 with certain compatibility conditions leading to one-
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bd937c8c469be1371a5dd966b3f7d210
http://arxiv.org/abs/1507.05583
http://arxiv.org/abs/1507.05583
