activity
20002026
most citedThe SL(2,C) Casson invariant for Seifert fibered homology spheres and surgeries on twist knots

17 citations · 38 across the 9 of their papers we have counts for

collaborators

10 papers

math.GT2026

Weights of essential surfaces in 2-bridge knot complements

Cynthia L. Curtis, Kendra Ebke, Kate O'Connor

Understanding ideal points in the character varieties of knot complements has led to a number of important invariants for 3-manifolds. Ohtsuki (1994) counted the ideal points for c…

math.GT2017

State invariants of two-bridge knots

Cynthia L. Curtis, Vincent Longo

In this paper, we consider generalizations of the Alexander polynomial and signature of 2-bridge knots by considering the Gordon-Litherland bilinear forms associated to essential s…

math.GT2015

Repeated boundary slopes for 2-bridge knots

Cynthia L. Curtis, William Franczak, Randolph J. Leiser +1

We investigate the question of when distinct branched surfaces in the complement of a 2-bridge knot support essential surfaces with identical boundary slopes. We determine all inst…

math.GT2014★ 3 cited

The SL(2,C) Casson invariant for knots and the -polynomial

Hans U. Boden, Cynthia L. Curtis

In this paper, we extend the definition of the Casson invariant to arbitrary knots in integral homology 3-spheres and relate it to the -degree of the $\wideha…

math.GT2012★ 7 cited

The SL(2,C) Casson invariant for Dehn surgeries on two-bridge knots

Hans U. Boden, Cynthia L. Curtis

We investigate the behavior of the SL(2,C) Casson invariant for 3-manifolds obtained by Dehn surgery along two-bridge knots. Using the results of Hatcher and Thurston, and also res…

math.GT2009★ 3 cited

The Jones polynomial and boundary slopes of alternating knots

Cynthia L. Curtis, Samuel Taylor

We show for an alternating knot the minimal boundary slope of an essential spanning surface is given by the signature plus twice the minimum degree of the Jones polynomial and the…

math.GT2007★ 7 cited

Splicing and the SL(2,C) Casson invariant

Hans U. Boden, Cynthia L. Curtis

We establish a formula for the SL(2,C) Casson invariant of spliced sums of homology spheres along knots. Along the way, we show that the SL(2,C) Casson invariant vanishes for splic…

math.GT2006★ 17 cited

The SL(2,C) Casson invariant for Seifert fibered homology spheres and surgeries on twist knots

Hans U. Boden, Cynthia L. Curtis

We derive a simple closed formula for the SL(2,C) Casson invariant for Seifert fibered homology 3-spheres using the correspondence between SL(2,C) character varieties and moduli sp…

math.GT2006★ 1 cited

A PSL(2,C) Casson Invariant

Cynthia L. Curtis

We use intersection theory techniques to define an invariant of closed 3-manifolds counting the characters of irreducible representations of the fundamental group in PSL(2,C). We n…

math.GT2000

A Dehn surgery description of regular finite cyclic covering spaces of rational homology spheres

Cynthia L. Curtis

We provide related Dehn surgery descriptions for rational homology spheres and a class of their regular finite cyclic covering spaces. As an application, we use the surgery descrip…