Auteurs : Roberts, Rachel (Auteur de la Conférence)
CIRM (Editeur )
Résumé :
Taut co-orientable foliations are associated with non-trivial elements of Heegard-Floer homology, hence, if a 3-manifold admits a taut, co-oriented foliation, it is not an L-space (Kronheimer-Mrowka-Ozsváth-Szabó). Conjecturally (Boyer-Gordon-Watson, Juhász), the converse is also true for irreducible manifolds. Thus far, the evidence from Dehn surgery on knots in S3 is consistent with this conjecture. We consider the L-space Knot Conjecture: if a knot has no reducible or L-space surgeries, then it is persistently foliar, meaning that for each boundary slope there is a taut, co-oriented foliation meeting the boundary of the knot complement in curves of that slope. For rational slopes, these foliations may be capped off by disks to obtain a taut, co-oriented foliation in every manifold obtained by Dehn surgery on that knot. I will describe an approach, applicable in a variety of settings, to constructing families of foliations realizing all boundary slopes. Recalling the work of Ghiggini, Hedden, Ni, Ozsváth-Szabó (and more recently, Juhász and Baldwin-Sivek) revealed that Dehn surgery on a knot in S3 can yield an L-space only if the knot is fibered and strongly quasipositive, we note that this approach seems to apply more easily when the knot is far from being fibered. As applications of this approach, we find that among the alternating and Montesinos knots, all those without reducible or L-space surgeries are persistently foliar. In addition, we find that any connected sum of alternating knots, Montesinos knots, or fibered knots is persistently foliar. Furthermore, any composite knot with a persistently foliar summand is easily shown to be persistently foliar. This work is joint with Charles Delman.
Codes MSC :
57M50
- Geometric structures on low-dimensional manifolds
|
Informations sur la Rencontre
Nom de la rencontre : Foliations and Diffeomorphism Groups / Feuilletages et Groupes de Difféomorphisme Organisateurs de la rencontre : Eynard-Bontemps, Hélène ; Meigniez, Gaël ; Nariman, Sam ; Yazdi, Mehdi Dates : 09/12/2024 - 13/12/2024
Année de la rencontre : 2024
URL Congrès : https://conferences.cirm-math.fr/3082.html
DOI : 10.24350/CIRM.V.20275703
Citer cette vidéo:
Roberts, Rachel (2024). Persistently foliar knots. CIRM. Audiovisual resource. doi:10.24350/CIRM.V.20275703
URI : http://dx.doi.org/10.24350/CIRM.V.20275703
|
Voir aussi
-
[Multi angle]
On the group of real-analytic diffeomorphisms - lecture 3
/ Auteur de la Conférence Takashi, Tsuboi.
-
[Multi angle]
On the group of real-analytic diffeomorphisms - lecture 2
/ Auteur de la Conférence Takashi, Tsuboi.
-
[Multi angle]
On conjugate actions in dimension 1: applications to deformation and distortion - Lecture 3
/ Auteur de la Conférence Navas, Andrès.
-
[Multi angle]
On conjugate actions in dimension 1: applications to deformation and distortion - Lecture 2
/ Auteur de la Conférence Navas, Andrès.
-
[Multi angle]
Groups of Anosov-like homeomorphisms and foliations of the plane - lecture 3
/ Auteur de la Conférence Mann, Kathryn.
-
[Multi angle]
Groups of Anosov-like homeomorphisms and foliations of the plane -Lecture 2
/ Auteur de la Conférence Mann, Kathryn.
-
[Multi angle]
Veering triangulations and transverse foliations
/ Auteur de la Conférence Zung, Jonathan.
-
[Multi angle]
On the group of real-analytic diffeomorphisms - Lecture 1
/ Auteur de la Conférence Takashi, Tsuboi.
-
[Multi angle]
On conjugate actions in dimension 1: applications to deformation and distortion - Lecture 1
/ Auteur de la Conférence Navas, Andrès.
-
[Multi angle]
Using ergodic theory to study the cohomology of diffeomorphism groups
/ Auteur de la Conférence Monod, Nicolas.
-
[Multi angle]
Dynamics of surface homeomorphisms and fine curve graph
/ Auteur de la Conférence Militon, Emmanuel.
-
[Multi angle]
Taut foliations through a contact lens
/ Auteur de la Conférence Massoni, Thomas.
-
[Multi angle]
Groups of Anosov-like homeomorphisms and foliations of the plane - lecture 1
/ Auteur de la Conférence Mann, Kathryn.
-
[Multi angle]
Torus homeomorphisms and the fine curve graph
/ Auteur de la Conférence Le Roux, Frédéric.
-
[Multi angle]
Critical regularity and subexponential growth
/ Auteur de la Conférence Kim, Sang-Hyun.
-
[Multi angle]
Recent progress on groups of area-preserving homeomorphisms
/ Auteur de la Conférence Humilière, Vincent.
-
[Multi angle]
Distortion elements in groups of interval diffeomorphisms
/ Auteur de la Conférence Eynard-Bontemps, Hélène.
-
[Multi angle]
Foliations on the plane $ \mathbb{R}^{2}$, pre-laminations on the circle $\mathbb{S}^{1}$, group actions on the circle $\mathbb{S}^{1}$
/ Auteur de la Conférence Bonatti, Christian.
Bibliographie