Zobrazeno 1 - 10
of 167
pro vyhledávání: '"Matic, Gordana"'
We show an example of an embedded copy of 5RP^2 in the four-sphere which is topologically standard but smoothly knotted, i.e. smoothly not isotopic to the standard embedding.
Comment: 18 pages, 3 figures. Mistake in the construction from previou
Comment: 18 pages, 3 figures. Mistake in the construction from previou
Externí odkaz:
http://arxiv.org/abs/2312.03617
We give diagrammatic algorithms for computing the group trisection, homology groups, and intersection form of a closed, orientable, smooth 4-manifold, presented as a branched cover of a bridge-trisected surface in $\mathbb{S}^{4}$. The algorithm take
Externí odkaz:
http://arxiv.org/abs/2308.11689
We define an invariant of contact structures in dimension three from Heegaard Floer homology. This invariant takes values in the set $\mathbb{Z}_{\geq0}\cup\{\infty\}$. It is zero for overtwisted contact structures, $\infty$ for Stein fillable contac
Externí odkaz:
http://arxiv.org/abs/1603.02673
We outline Hutchings's prescription that produces an ECH analog of Latschev and Wendl's algebraic $k$-torsion in the context of $ech$, a variant of ECH used in a proof of the isomorphism between Heegaard Floer and Seiberg-Witten Floer homologies; and
Externí odkaz:
http://arxiv.org/abs/1503.01685
We describe the natural gluing map on sutured Floer homology which is induced by the inclusion of one sutured manifold (M',\Gamma') into a larger sutured manifold (M,\Gamma), together with a contact structure on M-M'. As an application of this gluing
Externí odkaz:
http://arxiv.org/abs/0807.2431
We describe an invariant of a contact 3-manifold with convex boundary as an element of Juh\'asz's sutured Floer homology. Our invariant generalizes the contact invariant in Heegaard Floer homology in the closed case, due to Ozsv\'ath and Szab\'o. Thi
Externí odkaz:
http://arxiv.org/abs/0705.2828
We present an alternate description of the Ozsvath-Szabo contact class in Heegaard Floer homology. Using our contact class, we prove that if a contact structure (M,\xi) has an adapted open book decomposition whose page S is a once-punctured torus, th
Externí odkaz:
http://arxiv.org/abs/math/0609734
We continue our study of the monoid of right-veering diffeomorphisms on a compact oriented surface with nonempty boundary, introduced in [HKM2]. We conduct a detailed study of the case when the surface is a punctured torus; in particular, we exhibit
Externí odkaz:
http://arxiv.org/abs/math/0603626
We initiate the study of the monoid of right-veering diffeomorphisms on a compact oriented surface with nonempty boundary. The monoid strictly contains the monoid of products of positive Dehn twists. We explain the relationship to tight contact struc
Externí odkaz:
http://arxiv.org/abs/math/0510639
Publikováno v:
Algebr. Geom. Topol. 5 (2005) 769-784
We give a necessary and sufficient condition for the addition of a collection of disjoint bypasses to a convex surface to be universally tight -- namely the nonexistence of a polygonal region which we call a virtual pinwheel.
Comment: Published
Comment: Published
Externí odkaz:
http://arxiv.org/abs/math/0501354