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Related papers: Lefschetz fibrations on compact Stein surfaces

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We produce simply connected, minimal, symplectic Lefschetz fibrations realizing all the lattice points in the symplectic geography plane below the Noether line. This provides a symplectic extension of the classical works populating the…

Geometric Topology · Mathematics 2022-01-28 R. Inanc Baykur , Mustafa Korkmaz , Jonathan Simone

Stanley proved that, in characteristic zero, all artinian monomial complete intersections have the strong Lefschetz property. We provide a positive characteristic complement to Stanley's result in the case of artinian monomial complete…

Commutative Algebra · Mathematics 2013-01-23 David Cook

The Arakelov--Parshin rigidity theorem implies that a holomorphic Lefschetz fibration $\pi: M \to S^2$ of genus $g \geq 2$ admits only finitely many holomorphic sections $\sigma:S^2 \to M$. We show that an analogous finiteness theorem does…

Geometric Topology · Mathematics 2024-09-24 Seraphina Eun Bi Lee , Carlos A. Serván

Let $G$ be a compact Lie group acting on a compact complex manifold $M$. We prove a trace density formula for the $G$-Lefschetz number of a differential operator on $M$. We generalize Engeli and Felder's recent results to orbifolds.

Quantum Algebra · Mathematics 2007-06-08 G. Felder , X. Tang

In this article we show that every closed oriented smooth 4-manifold can be decomposed into two codimension zero submanifolds (one with reversed orientation) so that both pieces are exact Kahler manifolds with strictly pseudoconvex…

Geometric Topology · Mathematics 2009-04-22 R Inanc Baykur

We give a method for constructing a shadowed polyhedron from a divide. The 4-manifold reconstructed from a shadowed polyhedron admits the structure of a Lefschetz fibration if it satisfies a certain property, which we call the LF-property.…

Geometric Topology · Mathematics 2020-05-12 Masaharu Ishikawa , Hironobu Naoe

We describe all abelian groups which can appear as the fundamental groups of closed symplectically aspherical manifolds. The proofs use the theory of symplectic Lefschetz fibrations.

Symplectic Geometry · Mathematics 2007-05-23 J. Kedra , Yu. Rudyak , A. Tralle

We show how certain stabilizations produce infinitely many closed oriented 4-manifolds which are the total spaces of genus g surface bundles (resp. Lefschetz fibrations) over genus h surfaces and have non-zero signature, but do not admit…

Geometric Topology · Mathematics 2012-03-29 R. Inanc Baykur

In this paper we construct six-dimensional compact non-K\"ahler Hamiltonian circle manifolds which satisfy the strong Lefschetz property themselves but nevertheless have a non-Lefschetz symplectic quotient. This provides the first known…

Symplectic Geometry · Mathematics 2007-05-23 Yi Lin

We study the classification of Lefschetz fibrations up to stabilization by fiber sum operations. We show that for each genus there is a `universal' fibration f^0_g with the property that, if two Lefschetz fibrations over S^2 have the same…

Geometric Topology · Mathematics 2014-11-11 Denis Auroux

We prove a cyclic Lefschetz formula for foliations. To this end, we define a notion of equivariant cyclic cohomology and show that its expected pairing with K-theory is well defined. This enables to associate to any invariant transverse…

K-Theory and Homology · Mathematics 2011-04-26 Moulay-Tahar Benameur

We obtain infinitely many (non-conjugate) representations of 3-manifold fundamental groups into a lattice in the holomorphic isometry group of complex hyperbolic space. The lattice is an orbifold fundamental group of a branched covering of…

Geometric Topology · Mathematics 2023-11-23 Ruben Dashyan

We show that, under a certain condition, contact 5-manifolds can `coarsely' distinguish smooth structures on compact Stein 4-manifolds via contact open books. We also give a simple sufficient condition for an infinite family of Stein…

Geometric Topology · Mathematics 2016-04-13 Kouichi Yasui

We examine the action of the fundamental group $\Gamma$ of a Riemann surface with $m$ punctures on the middle dimensional homology of a regular fiber in a Lefschetz fibration, and describe to what extent this action can be recovered from…

Geometric Topology · Mathematics 2014-01-03 Gwenael Massuyeau , Alexandru Oancea , Dietmar A. Salamon

Let M denote the total space of a Lefschetz fibration, obtained by blowing up a Lefschetz pencil on an algebraic surface. We consider the n-fold fibre sum M(n), generalizing the construction of the elliptic surfaces E(n). For a Lefschetz…

Geometric Topology · Mathematics 2019-03-05 M. J. D. Hamilton

We prove two general factorization theorems for fixed-point invariants of fibrations: one for the Lefschetz number and one for the Reidemeister trace. These theorems imply the familiar multiplicativity results for the Lefschetz and Nielsen…

Algebraic Topology · Mathematics 2014-10-01 Kate Ponto , Michael Shulman

We introduce an idea of constructing Lefschetz fibrations of Weinstein manifolds from Weinstein handle decompositions on them. We prove theorems that formulate the idea for the cases of cotangent bundles and some plumbings. As a corollary,…

Symplectic Geometry · Mathematics 2025-11-04 Sangjin Lee

In this article, we generalize the results discussed in [arXiv:1004.3762] by introducing a genus to generic fibers of Lefschetz fibrations. That is, we give families of relations in the mapping class groups of genus-1 surfaces with…

Geometric Topology · Mathematics 2023-01-02 Hakho Choi

This (partially expository) paper discusses Lagrangian Floer cohomology in the context of Lefschetz fibrations, with emphasis on the algebraic structures encountered there. In addition to the well-known directed A_infinity algebras which…

Symplectic Geometry · Mathematics 2016-02-09 Paul Seidel

We present existence results for certain singular 2-dimensional foliations on 4-manifolds. The singularities can be chosen to be simple, e.g. the same as those that appear in Lefschetz pencils. There seems to be a wealth of such creatures…

Geometric Topology · Mathematics 2014-10-01 Alexandru Scorpan