Biquandle cohomology and state-sum invariants of links and surface-links
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DOI: 10.1142/s0218216518430162
Abstract: In this paper, we discuss the (co)homology theory of biquandles, derived biquandle cocycle invariants for oriented surface-links using broken surface diagrams and how to compute the biquandle cocycle invariants from marked graph diagrams. We also… read more here.
Keywords: state sum; cohomology state; cocycle invariants; surface links ... See more keywords