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This article surveys the use of configuration space integrals in the study of the topology of knot and link spaces. The main focus is the exposition of how these integrals produce finite type invariants of classical knots and links. More…

Geometric Topology · Mathematics 2013-10-29 Ismar Volic

We show that the homology of ordered configuration spaces of finite trees with loops is torsion free. We introduce configuration spaces with sinks, which allow for taking quotients of the base space. Furthermore, we give a concrete…

Algebraic Topology · Mathematics 2018-05-02 Safia Chettih , Daniel Lütgehetmann

Described the algebraic structure on the space of homotopy classes of cycles with marked topological flags of disks. This space is a non-commutative monoid, with an Abelian quotient corresponding to the group of singular homologies…

Algebraic Topology · Mathematics 2007-05-23 Valery Dolotin

In this note we give an algorithm to determine the rational homotopy type of the free and pointed mapping spaces $ map(F(\mathbb R^m,k), S^n)$ and $ map^*(F(\mathbb R^m,k), S^n)$. An explicit description of these spaces is given for $k=3$.…

Algebraic Topology · Mathematics 2018-07-02 Urtzi Buijs , Antonio Garvin , Aniceto Murillo

This paper concentrates on the homogeneous (conformal) model of Euclidean space (Horosphere) with subspaces that intuitively correspond to Euclidean geometric objects in three dimensions. Mathematical details of the construction and…

Rings and Algebras · Mathematics 2013-06-06 Eckhard Hitzer

We study the symplectic geometry of the moduli space of closed n-gons with fixed side-lengths in hyperbolic 3-space. We prove that these moduli spaces have a symplectic structure coming from Poisson Lie theory. We construct completely…

Symplectic Geometry · Mathematics 2007-05-23 Michael Kapovich , John J. Millson , Thomas Treloar

A rotation in a Euclidean space V is an orthogonal map on V which acts locally as a plane rotation with some fixed angle. We give a classification of all pairs of rotations in finite-dimensional Euclidean space, up to simultaneous…

Representation Theory · Mathematics 2009-07-09 Erik Darpö

It is an old conjecture, that finite $H$-spaces are homotopy equivalent to manifolds. Here we prove that this conjecture is true for loop spaces. Actually, we show that every quasi finite loop space is equivalent to a stably parallelizable…

Algebraic Topology · Mathematics 2007-05-23 N. Kitchloo , D. Notbohm

We derive an integral formula for the linking number of two submanifolds of the n-sphere S^n, of the product S^n x R^m, and of other manifolds which appear as "nice" hypersurfaces in Euclidean space. The formulas are geometrically…

Geometric Topology · Mathematics 2011-10-07 Clayton Shonkwiler , David Shea Vela-Vick

We show that the discretized configuration space of $k$ points in the $n$-simplex is homotopy equivalent to a wedge of spheres of dimension $n-k+1$. This space is homeomorphic to the order complex of the poset of ordered partial partitions…

Geometric Topology · Mathematics 2011-09-30 Aaron Abrams , David Gay , Valerie Hower

If H is a flat group of automorphisms of finite rank n of a totally disconnected, locally compact group G, then each orbit of H in the metric space B(G) of compact, open subgroups of G is quasi-isometric to n-dimensional euclidean space. In…

Group Theory · Mathematics 2008-08-01 Udo Baumgartner , Günter Schlichting , George A. Willis

A kinematic chain in three-dimensional Euclidean space consists of $n$ links that are connected by spherical joints. Such a chain is said to be within a closed configuration when its link lengths form a closed polygonal chain in three…

Robotics · Computer Science 2021-08-02 Gerhard Zangerl , Alexander Steinicke

We study the spaces of string links and homotopy string links in an arbitrary manifold using multivariable manifold calculus of functors. We construct multi-cosimplicial models for both spaces and deduce certain convergence properties of…

Algebraic Topology · Mathematics 2009-11-03 Brian A. Munson , Ismar Volic

We study the space $Q_n$ of all configurations of $n$ ordered points on the circle such that no three points coincide, and in which one of the points (say, the last one) is fixed. We compute its fundamental group for $n<6$ and describe its…

Group Theory · Mathematics 2025-10-29 Jacob Mostovoy

Let G be a semi-simple Lie group and Q a parabilic subgroup of its complexification G^\mathbb C, then Z:=G^\mathbb C/Q is a compact complex homogeneous manifold. Moreover, G as well as K^\mathbb C, the complexification of the maximal…

Complex Variables · Mathematics 2007-05-23 B. Ntatin

We show that in codimension at least 3, spaces of locally flat topological embeddings of manifolds are correctly modelled by derived spaces of maps between their configuration categories (under mild smoothability conditions). That general…

Algebraic Topology · Mathematics 2024-10-01 Pedro Boavida de Brito , Michael S. Weiss

This paper studies the configuration space of all possible positions of a linkage in R^n. For example, it shows that for every compact algebraic set, there is a linkage whose configuration space is analytically isomorphic to a finite number…

Geometric Topology · Mathematics 2007-05-23 Henry C. King

We study the way in which the Euclidean subspaces of a Banach space fit together, somewhat in the spirit of the Ka\v{s}in decomposition. The main tool that we introduce is an estimate regarding the convex hull of a convex body in John's…

Functional Analysis · Mathematics 2015-05-06 Daniel J. Fresen

We consider a knot homotopy as a cylinder in 4-space. An ordinary triple point $p$ of the cylinder is called {\em coherent} if all three branches intersect at $p$ pairwise with the same index. A {\em triple unknotting} of a classical knot…

Geometric Topology · Mathematics 2012-02-07 Thomas Fiedler , Arnaud Mortier

We prove that all SYM theories that have a quantum modified moduli space $\m$ defined by a single constraint equation have trivial homotopy groups $\pi_j(\m)$ for $j=0,1,2,3$ and 4. This implies that none of these theories admit skyrmions…

High Energy Physics - Theory · Physics 2010-02-03 Gustavo Dotti