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In this report, the explicit probability density functions of the random Euclidean distances associated with equilateral triangles are given, when the two endpoints of a link are randomly distributed in 1) the same triangle, 2) two adjacent…

General Mathematics · Mathematics 2013-07-04 Yanyan Zhuang , Jianping Pan

A twist is a datum playing a role of a local system for topological $K$-theory. In equivariant setting, twists are classified into four types according to how they are realized geometrically. This paper lists the possible types of twists…

Algebraic Topology · Mathematics 2017-03-09 Kiyonori Gomi

We study boundedness of zeros of the independence polynomial of tori for sequences of tori converging to the integer lattice. We prove that zeros are bounded for sequences of balanced tori, but unbounded for sequences of highly unbalanced…

Combinatorics · Mathematics 2024-08-28 David de Boer , Pjotr Buys , Han Peters , Guus Regts

Every Fourier--Mukai equivalence between the derived categories of two K3 surfaces induces a Hodge isometry of their cohomologies viewed as Hodge structures of weight two endowed with the Mukai pairing. We prove that this Hodge isometry…

Algebraic Geometry · Mathematics 2019-12-19 Daniel Huybrechts , Emanuele Macri , Paolo Stellari

Motivated by information geometry, a distance function on the space of stochastic matrices is advocated. Starting with sequences of Markov chains the Bhattacharyya angle is advocated as the natural tool for comparing both short and long…

Probability · Mathematics 2025-05-06 Antony R. Lee , Peter Tino , Iain Bruce Styles

Distance covariance is a popular measure of dependence between random variables. It has some robustness properties, but not all. We prove that the influence function of the usual distance covariance is bounded, but that its breakdown value…

Methodology · Statistics 2025-08-26 Sarah Leyder , Jakob Raymaekers , Peter J. Rousseeuw

(Co)bordisms of manifolds and maps are fundamental and important objects in algebraic and differential topology of manifolds and related studies were started by Thom etc.. Cobordisms of Morse functions were introduced and have been studied…

Algebraic Topology · Mathematics 2019-03-19 Naoki Kitazawa

We compute the monodromy dependence of the isomonodromic tau function on a torus with $n$ Fuchsian singularities and $SL(N)$ residue matrices by using its explicit Fredholm determinant representation. We show that the exterior logarithmic…

Mathematical Physics · Physics 2023-07-19 Fabrizio Del Monte , Harini Desiraju , Pavlo Gavrylenko

We show that the cophylogenetic distance, k-interval cospeciation, is distinct from other metrics and accounts for global congruence between locally incongruent trees. The growth of the neighborhood of trees which satisfy the largest…

Combinatorics · Mathematics 2014-07-25 Jane Ivy Coons , Joseph Rusinko

If $S$ is a given regular $d$-simplex of edge length $a$ in the $d$-dimensional Euclidean space $\mathcal{E}$, then the distances $t_1$, $\cdots$, $t_{d+1}$ of an arbitrary point in $\mathcal{E}$ to the vertices of $S$ are related by the…

Metric Geometry · Mathematics 2016-09-22 Mowaffaq Hajja , Mostafa Hayajneh , Bach Nguyen , Shadi Shaqaqha

Using orthogonal projections, we investigate distance of a given elasticity tensor to classes of elasticity tensors exhibiting particular material symmetries. These projections depend on the orientation of the elasticity tensor, hence the…

Materials Science · Physics 2009-08-12 Ioan Bucataru , Michael A. Slawinski

Self-similar curves are a recurring motif in nature. The tension-free stationary states of conformally invariant energies describe the simplest curves of this form. Planar logarithmic spirals, for example, are associated with conformal…

Soft Condensed Matter · Physics 2020-01-23 Jemal Guven

A differential geometric characterization of the braid-index of a link is found. After multiplication by 2pi, it equals the infimum of the sum of total curvature and total absolute torsion over holonomic representatives of the link. Upper…

Geometric Topology · Mathematics 2007-05-23 Tobias Ekholm , Ola Weistrand

The computation of the cobordism group of Morse functions on unoriented surfaces using Stein factorizations.

Algebraic Topology · Mathematics 2007-11-08 Boldizsar Kalmar

We show the existence of a limiting distribution $\cD_\cC$ of the adequately normalized discrepancy function of a random translation on a torus relative to a strictly convex set $\cC$. Using a correspondence between the small divisors in…

Dynamical Systems · Mathematics 2013-08-02 Dmitry Dolgopyat , Bassam Fayad

In "Proof of the Arnold chord conjecture in three dimensions I", we deduced the Arnold chord conjecture in three dimensions from another result, which asserts that an exact symplectic cobordism between contact three-manifolds induces a map…

Symplectic Geometry · Mathematics 2014-11-11 Michael Hutchings , Clifford Henry Taubes

In analogy to the concept of a non-metric dual connection, which is essential in defining statistical manifolds, we develop that of a torsion dual connection. Consequently, we illustrate the geometrical meaning of such a torsion dual…

Differential Geometry · Mathematics 2023-03-24 Damianos Iosifidis

A gap in the proof of the main result in reference [1] in our original submission propagated into the constructions presented in the first version of our manuscript. In this version we give an alternative proof for the existence of…

Differential Geometry · Mathematics 2023-06-23 Diego Corro , Fernando Galaz-Garcia

We show that the twisted signature invariants of boundary link concordance derived from unitary representations of the free group are actually ordinary link concordance invariants. We also show how the discontinuity locus of this signature…

Geometric Topology · Mathematics 2007-05-23 Jerome Levine

We consider random Gaussian eigenfunctions of the Laplacian on the standard torus, and investigate the number of nodal intersections against a line segment. The expected intersection number, against any smooth curve, is universally…

Number Theory · Mathematics 2017-04-20 Riccardo Walter Maffucci