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Related papers: Higher string topology operations

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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

We construct a space of string diagrams, which are a type of fatgraph with some additional data, and show that there are string topology operations on the chains of the free loop space of a closed Riemannian manifold which are parameterized…

Geometric Topology · Mathematics 2015-06-09 Gabriel C. Drummond-Cole , Kate Poirier , Nathaniel Rounds

The homology of a 2-colored dioperad of decorated Riemann surfaces, relevant to open-closed string field theory, is computed. The structure it describes is realized in an open-closed setting of string topology via an action at the level of…

Algebraic Topology · Mathematics 2009-09-29 Eric Harrelson

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

We study the string topology of a closed oriented Riemannian manifold M. We describe a compact moduli space of diagrams, and show how the cellular chain complex of this space gives algebraic operations on the singular chains of the free…

Geometric Topology · Mathematics 2011-11-16 Kate Poirier , Nathaniel Rounds

Using intersection theory in the context of Hilbert manifolds and geometric homology we show how to recover the main operations of string topology built by M. Chas and D. Sullivan. We also study and build an action of the homology of…

Algebraic Topology · Mathematics 2007-05-23 David Chataur

Let G be a compact Lie group. By work of Chataur and Menichi, the homology of the space of free loops in the classifying space of G is known to be the value on the circle in a homological conformal field theory. This means in particular…

Algebraic Topology · Mathematics 2015-06-01 Richard Hepworth , Anssi Lahtinen

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

Chas and Sullivan showed that the homology of the free loop space LM of an oriented closed smooth finite dimensional manifold M admits the structure of a Batalin-Vilkovisky (BV) algebra equipped with an associative product called the loop…

Algebraic Topology · Mathematics 2014-10-01 Hirotaka Tamanoi

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

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

Let $M$ be a closed, oriented and smooth manifold of dimension $d$. Let $\L M$ be the space of smooth loops in $M$. Chas and Sullivan introduced loop product, a product of degree $-d$ on the homology of $LM$. In this paper we show how for…

Geometric Topology · Mathematics 2007-05-23 Hossein Abbaspour

We apply a version of the Chas-Sullivan-Cohen-Jones product on the higher loop homology of a manifold in order to compute the homology of the spaces of continuous and holomorphic maps of the Riemann sphere into a complex projective space.…

Algebraic Topology · Mathematics 2009-03-02 Sadok Kallel , Paolo Salvatore

By studying spaces of flow graphs in a closed oriented manifold, we construct operations on its cohomology, parametrized by the homology of the moduli spaces of compact Riemann surfaces with boundary marked points. We show that the…

Geometric Topology · Mathematics 2013-05-03 Viktor Fromm

Let M be a closed, oriented, n-dimensional manifold. In this paper we give a Morse theoretic description of the string topology operations introduced by Chas and Sullivan, and extended by the first author, Jones, Godin, and others. We do…

Geometric Topology · Mathematics 2008-10-18 Ralph L. Cohen , Matthias Schwarz

We describe two major string topology operations, the Chas-Sullivan product and the Goresky-Hingston coproduct, from geometric and algebraic perspectives. The geometric construction uses Thom-Pontrjagin intersection theory while the…

Algebraic Topology · Mathematics 2025-01-06 Florian Naef , Manuel Rivera , Nathalie Wahl

We define a model for the homology of manifolds and use it to describe the intersection product on the homology of compact oriented manifolds and to define homological quantum field theories which generalizes the notions of string topology…

Geometric Topology · Mathematics 2007-05-23 Edmundo Castillo , Rafael Diaz

Let M be a closed, oriented, n -manifold, and LM its free loop space. Chas and Sullivan defined a commutative algebra structure in the homology of LM, and a Lie algebra structure in its equivariant homology. These structures are known as…

Geometric Topology · Mathematics 2014-02-26 Ralph L. Cohen , John Klein , Dennis Sullivan

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 introduce a commutative product of degree $-n$ on the homology $H_\ast(X)$ of an $n$-dimensional special cubical set $X$ and lift it on the free loop homology $H_\ast(\Lambda M)$ for $M=|X|$ to be the geometric realization. These…

Algebraic Topology · Mathematics 2026-04-09 Samson Saneblidze
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