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Related papers: New Class of 4-Dim Kochen-Specker Sets

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Autoregressive Neural Networks based on dense or convolutional layers have recently been shown to be a viable strategy for generating classical spin systems. Unlike these methods, sampling with transformers is commonly considered to be…

Disordered Systems and Neural Networks · Physics 2026-05-01 Piotr Białas , Piotr Korcyl , Tomasz Stebel , Adam Stefański , Dawid Zapolski

DRESS is a deterministic, parameter-free framework for structural graph refinement that iteratively refines the structural similarity of edges in a graph to produce a canonical fingerprint: a real-valued edge vector, obtained by converging…

Data Structures and Algorithms · Computer Science 2026-03-26 Eduar Castrillo Velilla

The demand for high efficiency and precise control in electric drive systems has led to the widespread adoption of Interior Permanent Magnet Synchronous Motors (IPMSMs). The performance of these motors is significantly influenced by rotor…

Machine Learning · Computer Science 2025-10-20 Kivanc Dogan , Ahmet Orhan

Deser and Waldron have shown that maximal depth partially massless theories of higher integer spin on 4-dimensional de Sitter spacetime ($dS_{4}$) possess infinitesimal symmetries generated by the conformal Killing vectors of $dS_{4}$.…

High Energy Physics - Theory · Physics 2024-11-21 Vasileios A. Letsios

Inspired by, and using methods of optimization derived from classical three dimensional electrostatics, we note a novel beautiful symmetric four dimensional polytope we have found with 80 vertices. We also describe how the method used to…

Computational Physics · Physics 2007-05-23 Eric Lewin Altschuler , Antonio Perez-Garrido , Richard Stong

We explicitly construct new subgroups of the mapping class groups of an uncountable collection of infinite-type surfaces, including, but not limited to, free groups, Baumslag-Solitar groups, mapping class groups of other surfaces, and a…

Geometric Topology · Mathematics 2026-02-11 Carolyn R. Abbott , Hannah Hoganson , Marissa Loving , Priyam Patel , Rachel Skipper

Recently Waegell and Aravind [J. Phys. A: Math. Theor. 45 (2012), 405301, 13 pages] have given a number of distinct sets of three-qubit observables, each furnishing a proof of the Kochen-Specker theorem. Here it is demonstrated that two of…

Mathematical Physics · Physics 2012-11-07 Metod Saniga , Michel Planat , Petr Pracna , Péter Lévay

We show that the density matrix of a spin-l system can be described entirely in terms of the measurement statistics of projective spin measurements along a minimum of 4l+1 different spin directions. It is thus possible to represent the…

Quantum Physics · Physics 2009-11-10 Holger F. Hofmann , Shigeki Takeuchi

The formalism developed recently to study vector meson--vector meson interaction, and applied to the case of $\rho\rho$, is extended to study the interaction of the nonet of vector mesons among themselves. The interaction leads to poles of…

High Energy Physics - Phenomenology · Physics 2009-08-05 L. S. Geng , E. Oset

Pseudorandom binary sequences with optimal balance and autocorrelation have many applications in stream cipher, communication, coding theory, etc. It is known that binary sequences with three-level autocorrelation should have an almost…

Cryptography and Security · Computer Science 2016-02-22 Minglong Qi , Shengwu Xiong , Jingling Yuan , Wenbi Rao , Luo Zhong

The enumeration of Hamiltonian cycles on 2n*2n grids of nodes is a longstanding problem in combinatorics. Previous work has concentrated on counting all cycles. The current work enumerates nonisomorphic cycles -- that is, the number of…

Combinatorics · Mathematics 2014-02-05 Ed Wynn

We describe an approach for unsupervised learning of a generic, distributed sentence encoder. Using the continuity of text from books, we train an encoder-decoder model that tries to reconstruct the surrounding sentences of an encoded…

Computation and Language · Computer Science 2015-06-23 Ryan Kiros , Yukun Zhu , Ruslan Salakhutdinov , Richard S. Zemel , Antonio Torralba , Raquel Urtasun , Sanja Fidler

We present a variety of methods for training complex-valued word embeddings, based on the classical Skip-gram model, with a straightforward adaptation simply replacing the real-valued vectors with arbitrary vectors of complex numbers. In a…

Computation and Language · Computer Science 2024-12-19 Carys Harvey , Stephen Clark , Douglas Brown , Konstantinos Meichanetzidis

A Steiner triple system, STS$(v)$, is a family of $3$-subsets (blocks) of a set of $v$ elements such that any two elements occur together in precisely one block. A collection of triples consisting of two copies of each block of an STS is…

Combinatorics · Mathematics 2025-04-24 Peter J. Dukes , Esther R. Lamken

We introduce topological prismatoids, a combinatorial abstraction of the (geometric) prismatoids recently introduced by the second author to construct counter-examples to the Hirsch conjecture. We show that the `strong $d$-step Theorem'…

Combinatorics · Mathematics 2022-08-05 Francisco Criado , Francisco Santos

A partial Steiner triple system whose triples can be partitioned into $s$ partial parallel classes, each of size $m$, is a $signal$ $set$, denoted $\mbox{SS}(v,s,m)$. A $Kirkman$ $signal$ $set$ $\mbox{KSS}(v,m)$ is an $\mbox{SS}(v,s,m)$…

Combinatorics · Mathematics 2017-07-25 Melissa S. Keranen , Donald L. Kreher

We define spin structures on perfect complexes outside of characteristic two, generalizing the usual notion for vector bundles. We give an explicit local characterization of spin structures, and show that for an oriented quadratic complex…

Algebraic Geometry · Mathematics 2024-10-29 Nikolas Kuhn

Iosevich and Senger (2008) showed that if a subset of the d-dimensional vector space over a finite field is large enough, then it contains many k-tuples of mutually orthogonal vectors. In this note, we provide a graph theoretic proof of…

Combinatorics · Mathematics 2008-07-18 Le Anh Vinh

Split-UED allows for the possibility that the lowest lying KK excitations of the Standard Model fermions can be much lighter than the corresponding gauge or Higgs KK states. This can happen provided the fermion bulk masses are chosen to be…

High Energy Physics - Phenomenology · Physics 2014-11-20 Kyoungchul Kong , Seong Chan Park , Thomas G. Rizzo

We construct left invariant quaternionic contact (qc) structures on Lie groups with zero and non-zero torsion and with non-vanishing quaternionic contact conformal curvature tensor, thus showing the existence of non-flat quaternionic…

Differential Geometry · Mathematics 2010-09-15 Luis C. de Andrés , Marisa Fernández , Stefan Ivanov , José A. Santisteban , Luis Ugate , Dimiter Vassilev
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