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We show that the Chas-Sullivan loop product, a combination of the Pontrjagin product on the fiber and intersection product on the base, makes sense on the total space homology of any fiberwise monoid E over a closed oriented manifold M.…

Algebraic Topology · Mathematics 2014-02-26 Kate Gruher , Paolo Salvatore

We describe how the result in [1] extends to prove the existence of a Serre type spectral sequence converging to the symplectic homology SH_*(M) of an exact Sub-Liouville domain M in a cotangent bundle T*N. We will define a notion of a…

Symplectic Geometry · Mathematics 2012-08-30 Thomas Kragh

We study a spectral sequence that computes the (mod 2) S^1-equivariant homology of the free loop space LM of a manifold M (the "string homology" of M). Using it and knowledge of the string topology operations on the homology of LM, we…

Algebraic Topology · Mathematics 2014-10-01 Craig Westerland

The free loops space $\Lambda X$ of a space $X$ has become an important object of study particularly in the case when $X$ is a manifold.The study of free loop spaces is motivated in particular by two main examples. The first is their…

Algebraic Topology · Mathematics 2017-07-03 Matthew Burfitt

In this paper we compute the singular homology of the space of immersions of the circle into the $n$-sphere. Equipped with Chas-Sullivan's loop product these homology groups are graded commutative algebras, we also compute these algebras.…

Algebraic Topology · Mathematics 2009-03-27 David Chataur , Jean-Francois Le Borgne

We define shriek map for a finite codimensionnal embedding of fibration. We study the morphisms induced by shriek maps in the Leray-Serre spectral sequence. As a byproduct, we get two multiplicative spectral sequences of algebra wich…

Algebraic Topology · Mathematics 2007-05-23 Le Borgne

Given a principal bundle over a closed manifold, G --> P --> M, let P^{Ad} --> M be the associated adjoint bundle. Gruher and Salvatore showed that the Thom spectrum (P^{Ad})^{-TM} is a ring spectrum whose corresponding product in homology…

Algebraic Topology · Mathematics 2013-04-03 Ralph L. Cohen , John D. S. Jones

In this paper we study the string topology (\'a la Chas-Sullivan) of an orbifold. We define the string homology ring product at the level of the free loop space of the classifying space of an orbifold. We study its properties (introducing…

Algebraic Topology · Mathematics 2008-07-28 Ernesto Lupercio , Bernardo Uribe , Miguel A. Xicotencatl

In this expository paper we discuss a project regarding the string topology of a manifold, that was inspired by recent work of Moore-Segal, Costello, and Hopkins and Lurie, on "open-closed topological conformal field theories". Given a…

Algebraic Topology · Mathematics 2009-06-30 Andrew J. Blumberg , Ralph L. Cohen , Constantin Teleman

The string topology coproduct is often perceived as a counterpart in string topology to the Chas-Sullivan product. However, in certain aspects the string topology coproduct is much harder to understand than the Chas-Sullivan product. In…

Algebraic Topology · Mathematics 2024-12-12 Philippe Kupper , Maximilian Stegemeyer

We construct a Leray-Serre spectral sequence for fibre bundles for de Rham sheaf cohomology on noncommutative algebras. The morphisms are bimodules with zero-curvature extendable bimodule connections. This generalises definitions involving…

Operator Algebras · Mathematics 2024-12-31 Edwin J. Beggs , James E. Blake

Let $M$ be a closed oriented $d$-dimensionnal manifold and let $LM$ be the space of free loops on $M$. In this paper, we give a geometrical interpretation of the loop coproduct and we study it's compatibility with the Serre spectral…

Algebraic Topology · Mathematics 2007-05-23 J. F. Le Borgne

Let $M$ be any simply-connected Gorenstein space over any field. F\'elix and Thomas have extended to simply-connected Gorenstein spaces, the loop (co)products of Chas and Sullivan on the homology of the free loop space $H_*(LM)$. We…

Algebraic Topology · Mathematics 2013-04-26 Katsuhiko Kuribayashi , Luc Menichi , Takahito Naito

We construct the analogue of the Serre spectral sequence for the bounded cohomology of simplicial sets with seminormed local coefficients. As applications, we obtain a (non-isometric) generalization of Gromov's mapping theorem and some…

Algebraic Topology · Mathematics 2025-03-31 Kevin Li , Marco Moraschini , George Raptis

We will use the tools developed in [Rie24] to give a Morse-theoretic description of a string topology product on the homology of the space of paths in a manifold Y with endpoints in a submanifold X and a module structure on this homology…

Algebraic Topology · Mathematics 2025-12-17 Robin Riegel

In this paper we establish the existence of certain structures on the ordinary and equivariant homology of the free loop space on a manifold or, more generally, a formal Poincar\'e duality space. These structures; namely the loop product,…

Quantum Algebra · Mathematics 2007-08-15 Alastair Hamilton , Andrey Lazarev

Chas and Sullivan introduced string homology, which is the equivariant homology of the loop space with the $S^1$ action on loops by rotation. Craig Westerland computed the string homology for spheres with coefficients in $\mathbb{Z}…

Algebraic Topology · Mathematics 2016-10-25 Felicia Tabing

We describe the topological Hochschild homology of ring spectra that arise as Thom spectra for loop maps f: X->BF, where BF denotes the classifying space for stable spherical fibrations. To do this, we consider symmetric monoidal models of…

Algebraic Topology · Mathematics 2014-11-11 A. J. Blumberg , R. L. Cohen , C. Schlichtkrull

Given a closed manifold $M$. We give an algebraic model for the Chas-Sullivan product and the Goresky-Hingston coproduct. In the simply-connected case, this admits a particularly nice description in terms of a Poincar\'e duality model of…

Quantum Algebra · Mathematics 2019-11-15 Florian Naef , Thomas Willwacher

In this article we consider algebraic structures on the homology of the space of paths in a manifold with endpoints in a submanifold. The Pontryagin-Chas-Sullivan product on the homology of this space had already been investigated by…

Algebraic Topology · Mathematics 2025-02-11 Maximilian Stegemeyer
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