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In this paper we study multidimensional persistence modules [5,13] via what we call tame functors and noise systems. A noise system leads to a pseudo-metric topology on the category of tame functors. We show how this pseudo-metric can be…

Algebraic Topology · Mathematics 2016-08-16 Martina Scolamiero , Wojciech Chachólski , Anders Lundman , Ryan Ramanujam , Sebastian Öberg

Common measures of neural representational (dis)similarity are designed to be insensitive to rotations and reflections of the neural activation space. Motivated by the premise that the tuning of individual units may be important, there has…

Machine Learning · Computer Science 2023-11-17 Meenakshi Khosla , Alex H. Williams

In the present paper we study the variation of the dimensions $h_k$ of spaces of symplectically harmonic cohomology classes (in the sense of Brylinski) on closed symplectic manifolds. We give a description of such variation for all…

Symplectic Geometry · Mathematics 2007-05-23 R. Ibáñez , Yu. Rudyak , A. Tralle , L. Ugarte

We derive a normal form for a near-integrable, four-dimensional symplectic map with a fold or cusp singularity in its frequency mapping. The normal form is obtained for when the frequency is near a resonance and the mapping is approximately…

Chaotic Dynamics · Physics 2007-05-23 H. R. Dullin , A. V. Ivanov , J. D. Meiss

Our aim is to support the choice of two remarkable connections with torsion in a 3-Sasakian manifold, proving that, in contrast to the Levi-Civita connection, the holonomy group in the homogeneous cases reduces to a proper subgroup of the…

Differential Geometry · Mathematics 2019-03-20 Cristina Draper

We characterise when there exists a quasiisometric embedding between two solvable Baumslag-Solitar groups. This extends the work of Farb and Mosher on quasiisometries between the same groups. More generally, we characterise when there can…

Group Theory · Mathematics 2022-04-11 Patrick S. Nairne

We present a simple N=1 five-dimensional model where the fifth dimension is compactified on the orbifold $S^1/Z_2$. Non-chiral matter lives in the bulk of the fifth dimension (five dimensions) while chiral matter lives on the fixed points…

High Energy Physics - Phenomenology · Physics 2009-07-09 A. Pomarol , M. Quiros

In the framework of semiclassical resonances, we make more precise the link between polynomial estimates of the extension of the resolvent and propagation of the singularities through the trapped set. This approach makes it possible to…

Analysis of PDEs · Mathematics 2017-04-13 Jean-Francois Bony , Setsuro Fujiie , Thierry Ramond , Maher Zerzeri

The aim of this paper is twofold: on one side we review the classical concept of musical mode from the viewpoint of modern music, reading it as a superimposition of a base-chord (seventh chord) and a tension-chord (triad). We associate to…

Algebraic Topology · Mathematics 2013-09-04 Mattia G. Bergomi , Alessandro Portaluri

We establish a criterion on wrapped Floer homology of an exact Lagrangian sub- manifold in a Liouville domain, which ensures the almost-existence of Hamiltonian chords near a given energy level. To this purpose we introduce a relative…

Symplectic Geometry · Mathematics 2025-11-05 Antoine Rodrigues

This paper is concerned with the minimum distance computation for higher dimensional toric codes defined by lattice polytopes. We show that the minimum distance is multiplicative with respect to taking the product of polytopes, and behaves…

Algebraic Geometry · Mathematics 2015-06-26 Ivan Soprunov , Evgenia Soprunova

A Creutz ladder, is a quasi one dimensional system hosting robust topological phases with localized edge modes protected by different symmetries such as inversion, chiral and particle-hole symmetries. Non-trivial topology is observed in a…

Other Condensed Matter · Physics 2023-08-09 Srijata Lahiri , Saurabh Basu

Almost hypercomplex manifolds with Hermitian and anti-Hermitian metrics are considered. A linear connection $D$ is introduced such that the structure of these manifolds is parallel with respect to D. Of special interest is the class of the…

Differential Geometry · Mathematics 2012-05-08 Mancho Manev

We discuss solutions of the heterotic string theory which are analogous to bosonic and superstring backgrounds related to coset conformal field theories. A class of exact `left-right symmetric' solutions is obtained by supplementing the…

High Energy Physics - Theory · Physics 2009-09-25 A. Giveon , E. Rabinovici , A. A. Tseytlin

We present a supervised neural network model for polyphonic piano music transcription. The architecture of the proposed model is analogous to speech recognition systems and comprises an acoustic model and a music language model. The…

Machine Learning · Statistics 2016-02-12 Siddharth Sigtia , Emmanouil Benetos , Simon Dixon

In order to design haptic icons or build a haptic vocabulary, we require a set of easily distinguishable haptic signals to avoid perceptual ambiguity, which in turn requires a way to accurately estimate the perceptual (dis)similarity of…

Machine Learning · Computer Science 2020-10-13 Priyadarshini Kumari , Siddhartha Chaudhuri , Subhasis Chaudhuri

We study the Gorenstein weak global dimension of associative rings and its relation to the Gorenstein global dimension. In particular, we prove the conjecture that the Gorenstein weak global dimension is a left-right symmetric invariant --…

Rings and Algebras · Mathematics 2021-06-07 Lars Winther Christensen , Sergio Estrada , Peder Thompson

The pair-correlation functions for fluid ionic mixtures in arbitrary spatial dimensions are computed in hypernetted chain (HNC) approximation. In the primitive model, all ions are approximated as non-overlapping hyperspheres with Coulomb…

Soft Condensed Matter · Physics 2014-03-28 Marco Heinen , Elshad Allahyarov , Hartmut Löwen

Unsupervised point cloud shape correspondence aims to obtain dense point-to-point correspondences between point clouds without manually annotated pairs. However, humans and some animals have bilateral symmetry and various orientations,…

Computer Vision and Pattern Recognition · Computer Science 2023-04-13 Jiacheng Deng , Chuxin Wang , Jiahao Lu , Jianfeng He , Tianzhu Zhang , Jiyang Yu , Zhe Zhang

We provide necessary and sufficient conditions for a bi-Darboux Theorem on triplectic manifolds. Here triplectic manifolds are manifolds equipped with two compatible, jointly non-degenerate Poisson brackets with mutually involutive…

Mathematical Physics · Physics 2015-05-30 Igor A. Batalin , Klaus Bering