output
20022009
most citedCocycle Knot Invariants from Quandle Modules and Generalized Quandle Cohomology

9 citations

27 papers

math.GT20091 cited

Knot Groups with Many Killers

Daniel S. Silver, Wilbur Whitten, Susan G. Williams

The group of any nontrivial torus knot, hyperbolic 2-bridge knot, or hyperbolic knot with unknotting number one contains infinitely many elements, none the automorphic image of ano…

math.GT20091 cited

On a Theorem of Burde and de Rham

Daniel S. Silver, Susan G. Williams

We generalize a theorem of Burde and de Rham characterizing the zeros of the Alexander polynomial. Given a representation of a knot group , we define an extension of , the Cr…

math.GT20092 cited

Alexander-Lin twisted polynomials

Daniel S. Silver, Susan G. Williams

X.S. Lin's original definition of twisted Alexander knot polynomial is generalized for arbitrary finitely presented groups. J. Cha's fibering obstruction theorem is generalized. Th…

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…