output
20022008
most citedTracking User Attention in Collaborative Tagging Communities

17 citations

Showing math.GTShow all

12 papers · 1 filter

math.GT20091 cited

Frobenius Modules and Essential Surface Cobordisms

J. Scott Carter, Masahico Saito

An algebraic system is proposed that represent surface cobordisms in thickened surfaces. Module and comodule structures over Frobenius algebras are used for representing essential…

math.GT2009

Symmetric Extensions of Dihedral Quandles and Triple Points of Non-orientable Surfaces

J. Scott Carter, Kanako Oshiro, Masahico Saito

Quandles with involutions that satisfy certain conditions, called good involutions, can be used to color non-orientable surface-knots. We use subgroups of signed permutation matric…

math.GT2008

Cocycle Deformations of Algebraic Identities and R-matrices

J. Scott Carter, Alissa Crans, Mohamed Elhamdadi +1

For an arbitrary identity L=R between compositions of maps L and R on tensors of vector spaces V, a general construction of a 2-cocycle condition is given. These 2-cocycles corresp…

math.GT2007

Polynomial cocycles of Alexander quandles and applications

Kheira Ameur, Masahico Saito

Cocycles are constructed by polynomial expressions for Alexander quandles. As applications, non-triviality of some quandle homology groups are proved, and quandle cocycle invariant…

math.GT2007

Tangle embeddings and quandle cocycle invariants

Kheira Ameur, Mohamed Elhamdadi, Tom Rose +2

To study embeddings of tangles in knots, we use quandle cocycle invariants. Computations are carried out for the tables of knots and tangles, to investigate which tangles may or ma…

math.GT20072 cited

Virtual Knot Invariants from Group Biquandles and Their Cocycles

J. Scott Carter, Mohamed Elhamdadi, Masahico Saito +2

A group-theoretical method, via Wada's representations, is presented to distinguish Kishino's virtual knot from the unknot. Biquandles are constructed for any group using Wada's br…