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We derive new existence results for tight contact structures on certain 3-manifolds which can be presented as surgery along specific knots in S^3. Indeed, we extend our earlier results on knots with maximal Thurston-Bennequin number being…

辛几何 · 数学 2015-03-17 Paolo Lisca , Andras I. Stipsicz

In this short note, we prove that every closed, oriented, connected 3-manifold arises as Dehn surgery along a braid positive link.

几何拓扑 · 数学 2026-05-06 Marc Kegel , Paula Truöl

We execute Avdek's algorithm to find many algebraically overtwisted and tight $3$-manifolds by contact $+1$ surgeries. In particular, we show that a contact $1/k$ surgery on the standard contact $3$-sphere along any positive torus knot with…

辛几何 · 数学 2024-11-01 Youlin Li , Zhengyi Zhou

Using the knot Floer homology filtration, we define invariants associated to a knot in a three-manifold possessing non-vanishing Floer co(homology) classes. In the case of the Ozsvath-Szabo contact invariant we obtain an invariant of knots…

几何拓扑 · 数学 2007-08-06 Matthew Hedden

We give a generalized Thurston--Bennequin-type inequality for links in $S^3$ using a Bauer--Furuta-type invariant for 4-manifolds with contact boundary. As a special case, we also give an adjunction inequality for smoothly embedded…

几何拓扑 · 数学 2022-07-04 Nobuo Iida , Hokuto Konno , Masaki Taniguchi

We use the combinatorial techniques of graphs of intersection to study reducible Dehn surgeries on knots in the three-sphere. In particular, in the event that a reducible surgery on a knot K in the three-sphere of slope r produces a…

几何拓扑 · 数学 2014-10-14 Nicholas Zufelt

We study positive braid knots (the knots in the three-sphere realized as positive braid closures) through the lens of the L-space conjecture. This conjecture predicts that if $K$ is a non-trivial positive braid knot, then for all $r <…

几何拓扑 · 数学 2025-04-07 Siddhi Krishna

Let S^3_r(K) be the oriented 3--manifold obtained by rational r-surgery on a knot K in S^3. Using the contact Ozsvath-Szabo invariants we prove, for a class of knots K containing all the algebraic knots, that S^3_r(K) carries positive,…

辛几何 · 数学 2014-11-11 Paolo Lisca , Andras I Stipsicz

The twisted torsion of a 3-manifold is well-known to be zero whenever the corresponding twisted Alexander module is non-torsion. Under mild extra assumptions we introduce a new twisted torsion invariant which is always non-zero. We show how…

几何拓扑 · 数学 2010-09-30 Jae Choon Cha , Stefan Friedl

We study the asymptotic behavior of the Witten-Reshetikhin-Turaev invariant associated with the square of the $n$-th root of unity with odd $n$ for a Seifert fibered space obtained by an integral Dehn surgery along a torus knot. We show…

几何拓扑 · 数学 2020-12-07 Hitoshi Murakami , Anh T. Tran

It is well known that any three-manifold can be obtained by surgery on a framed link in $S^3$. Lickorish gave an elementary proof for the existence of the three-manifold invariants of Witten using a framed link description of the manifold…

高能物理 - 理论 · 物理学 2009-10-31 P. Ramadevi , Swatee Naik

In this paper, we define a new algebro-geometric invariant of 3-manifolds resulting from the Dehn surgery along a hyperbolic knot complement in S^3. We establish a Casson type invariant for these 3-manifolds. In the last section, we…

几何拓扑 · 数学 2011-12-20 Weiping Li , Qingxue Wang

I calculate optimistically asymptotic behaviors of the WRT SU(2) invariants for the three-manifolds obtained from the figure-eight knot by p-surgeries with p=0,1,2,...,10, from which one can extract volumes and the Chern-Simons invariants…

几何拓扑 · 数学 2007-05-23 Hitoshi Murakami

We obtain new invariants of topological link concordance and homology cobordism of 3-manifolds from Hirzebruch-type intersection form defects of towers of iterated p-covers. Our invariants can extract geometric information from an arbitrary…

几何拓扑 · 数学 2008-06-16 Jae Choon Cha

We introduce new topological quantum invariants of compact oriented 3-manifolds with boundary where the boundary is a disjoint union of two identical surfaces. The invariants are constructed via surgery on manifolds of the form $F \times I$…

几何拓扑 · 数学 2023-04-25 Louis H. Kauffman , Eiji Ogasa

We consider surgery moves along (n+1)-component Brunnian links in compact connected oriented 3-manifolds, where the framing of the each component is 1/k for k in Z. We show that no finite type invariant of degree < 2n-2 can detect such a…

几何拓扑 · 数学 2009-07-29 Jean-Baptiste Meilhan

Invariants for framed links in $S^3$ obtained from Chern-Simons gauge field theory based on an arbitrary gauge group (semi-simple) have been used to construct a three-manifold invariant. This is a generalization of a similar construction…

高能物理 - 理论 · 物理学 2009-10-31 Romesh K. Kaul , P. Ramadevi

The Thurston-Bennequin invariant provides one notion of self-linking for any homologically-trivial Legendrian curve in a contact three-manifold. Here we discuss related analytic notions of self-linking for Legendrian knots in Euclidean…

辛几何 · 数学 2018-08-22 Chris Beasley , Brendan McLellan , Ruoran Zhang

We give a purely topological definition of the perturbative quantum invariants of links and 3-manifolds associated with Chern-Simons field theory. Our definition is as close as possible to one given by Kontsevich. We will also establish…

几何拓扑 · 数学 2007-05-23 Greg Kuperberg , Dylan P. Thurston

We establish a new approach to obtain 3-manifold invariants via Dehn surgery. For this, we introduce skew-racks with good involution and Property FR, and define cocycle invariants as 3-manifold invariants. We also define some link…

几何拓扑 · 数学 2026-05-06 Takefumi Nosaka
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