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In this paper we start by briefly surveying the theory of Fractional Jumps and transitive projective maps. Then, we give an efficient construction of a fractional jump of a projective map and we extend the compound generator construction…

数论 · 数学 2020-01-03 Dorian Goldfeld , Giacomo Micheli

The binary expansions of irrational algebraic numbers can serve as high-quality pseudorandom binary sequences. This study presents an efficient method for computing the exact binary expansions of real quadratic algebraic integers using…

统计计算 · 统计学 2025-02-25 Asaki Saito , Akihiro Yamaguchi

We develop a method for generating pseudorandom binary sequences using the Bernoulli map on cubic algebraic integers. The distinguishing characteristic of our generator is that it generates chaotic true orbits of the Bernoulli map by exact…

数论 · 数学 2018-11-14 Asaki Saito , Akihiro Yamaguchi

The one-dimensional orbit set $\langle F : s \rangle$ is formed by the images of a number $s$ under the action of a semigroup generated by integer affine functions $f_i=a_i x+b_i$ taken from the set $F=\{f_1,\ldots,f_n\}$. P.Erd\H{o}s…

组合数学 · 数学 2026-02-06 Karim F. Shamazov , Alexey L. Talambutsa

Let G be a reductive algebraic group and let H be a reductive subgroup of G. We describe all pairs (G,H) such that for any affine G-variety X with a dense G-orbit isomorphic to G/H the number of G-orbits in X is finite. The maximal number…

代数几何 · 数学 2009-10-03 I. V. Arzhantsev , D. A. Timashev

We provide a unified approach, via deformations of incidence algebras, to several important types of representations with finiteness conditions, as well as the combinatorial algebras which produce them. We show that over finite dimensional…

表示论 · 数学 2018-05-07 Miodrag C. Iovanov , Gerard D. Koffi

We consider a certain class of Schubert varieties of the affine Grassmannian of type A. By embedding a Schubert variety into a finite-dimensional Grassmannian, we construct an explicit basis of sections of the basic line bundle by…

代数几何 · 数学 2007-05-23 V. Kreiman , V. Lakshmibai , P. Magyar , J. Weyman

In this paper we provide a complete characterisation of transitive fractional jumps by showing that they can only arise from transitive projective automorphisms. Furthermore, we prove that such construction is feasible for arbitrarily large…

数论 · 数学 2019-02-13 Federico Amadio Guidi , Giacomo Micheli

We consider actions of the free semigroup with two generators on the real line, where the generators act as affine maps, one contracting and one expanding, with distinct fixed points. Then every orbit is dense in a half-line, which leads to…

动力系统 · 数学 2014-03-13 Vitaly Bergelson , Michal Misiurewicz , Samuel Senti

This paper presents a fully convolutional scene graph generation (FCSGG) model that detects objects and relations simultaneously. Most of the scene graph generation frameworks use a pre-trained two-stage object detector, like Faster R-CNN,…

计算机视觉与模式识别 · 计算机科学 2021-03-31 Hengyue Liu , Ning Yan , Masood S. Mortazavi , Bir Bhanu

We investigate the conformal algebra on the fuzzy sphere, and in particular the generators of translations and special conformal transformations which are emergent symmetries in the infinite IR but are broken along the RG flow. We show how…

高能物理 - 理论 · 物理学 2025-08-22 Giulia Fardelli , A. Liam Fitzpatrick , Emanuel Katz

Generating random and pseudorandom numbers with a deterministic system is a long-standing challenge in theoretical research and engineering applications. Several pseudorandom number generators based on the inversive congruential method have…

离散数学 · 计算机科学 2024-01-17 Xiaoxiong Lu , Chengqing Li , Bo Zhou

Halfspaces or linear threshold functions are widely studied in complexity theory, learning theory and algorithm design. In this work we study the natural problem of constructing pseudorandom generators (PRGs) for halfspaces over the sphere,…

计算复杂性 · 计算机科学 2015-03-30 Pravesh Kothari , Raghu Meka

Delorme suggested that the set of all complete intersection numerical semigroups can be computed recursively. We have implemented this algorithm, and particularized it to several subfamilies of this class of numerical semigroups: free and…

组合数学 · 数学 2013-01-22 Abdallah Assi , Pedro A. García-Sánchez

Implicit generative models have been widely employed to model 3D data and have recently proven to be successful in encoding and generating high-quality 3D shapes. This work builds upon these models and alleviates current limitations by…

计算机视觉与模式识别 · 计算机科学 2023-03-21 Tejaswini Medi , Jawad Tayyub , Muhammad Sarmad , Frank Lindseth , Margret Keuper

Equational reasoning about circuits is central in quantum software for validation, optimisation, and verification. For qubits, the CNOT-dihedral fragment supports efficient rewriting via phase polynomials and layered normal forms, yielding…

量子物理 · 物理学 2026-03-09 Colin Blake

We obtain a characterization of complete interpolating sequences in a class of Fock-type spaces with radial weights for which such sequences exist. Our criterion is formulated in terms of logarithmic separation and controlled perturbations…

复变函数 · 数学 2026-03-25 Karim Kellay , Youssef Omari

We study the question whether the affine semigroup of integer points in a convex cone can be finitely generated up to symmetries of the cone. We establish general properties of finite generation up to symmetry, and then concentrate on the…

数论 · 数学 2025-04-23 Grigoriy Blekherman , Jesús A. De Loera , Luze Xu , Shixuan Zhang

We construct an efficient frequency domain waveform for generic circular compact object binaries that include neutron stars. The orbital precession is solved on the radiation reaction timescale (and then transformed to the frequency…

广义相对论与量子宇宙学 · 物理学 2023-08-28 Michael LaHaye , Huan Yang , Béatrice Bonga , Zhenwei Lyu

A partial affine plane of order $n$ is a point-line incidence structure with $n^2$ points and $n$ points on each line, such that every two lines meet in at most one point. In this paper, we show that a partial affine plane of order $n$, $n$…

组合数学 · 数学 2025-11-26 Cassie Grace , Klaus Metsch , Geertrui Van de Voorde
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