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Grids - the collection of heterogeneous computers spread across the globe - present a new paradigm for the large scale problems in variety of fields. We discuss two representative cases in the area of condensed matter physics outlining the…

介观与纳米尺度物理 · 物理学 2010-02-12 Bhalchandra S. Pujari

In this paper, we discuss the theory of quasi-fibrations in proper Bousfield localizations of model categories of simplicial sheaves. We provide a construction of fibrewise localization and use this construction to generalize a criterion…

代数拓扑 · 数学 2014-10-01 Matthias Wendt

Recursion relations for integrals of amplitudes over the phase space, i.e. for partial wave amplitudes, are introduced. In their simplest form these integrals are proportional to the s-wave amplitudes and represent rigorous lower bounds on…

高能物理 - 唯象学 · 物理学 2009-10-22 Costas G. Papadopoulos

In this work we state a Theorem on number theory and apply it to solve some ordinary and partial differential equations.

综合数学 · 数学 2021-02-25 B. M. Cerna Maguiña , D. D. Lujerio Garcia

We give an introductory review of Fourier-Mukai transforms and their application to various aspects of moduli problems, string theory and mirror symmetry. We develop the necessary mathematical background for Fourier-Mukai transforms such as…

代数几何 · 数学 2007-05-23 Bjorn Andreas , Daniel Hernandez Ruiperez

We point out that the recursive formula that appears in Erickson's presentation "Fusible Numbers" is incorrect, and pose an alternate conjecture about the structure of fusible numbers. Although we are unable to solve the conjecture, we…

组合数学 · 数学 2012-02-28 Junyan Xu

This paper defines double fibrations (fibrations of double categories) and describes their key examples and properties. In particular, it shows how double fibrations relate to existing fibrational notions such as monoidal fibrations and…

范畴论 · 数学 2022-05-31 Geoffrey Cruttwell , Michael Lambert , Dorette Pronk , Martin Szyld

We make the simple, and yet deep, observation that a regular conditional distribution (rcd) almost surely trivialises the conditioning $\sigma$-algebra if and only if there exists a "measurable selection" of regular conditional…

概率论 · 数学 2015-12-01 Julian Newman

We study elliptic fibrations for F-theory compactifications realizing 4d and 6d supersymmetric gauge theories with abelian gauge factors. In the fibration these U(1) symmetries are realized in terms of additional rational sections. We…

高能物理 - 理论 · 物理学 2018-11-27 Craig Lawrie , Sakura Schafer-Nameki , Jin-Mann Wong

In this short article we provide a proof of the Iitaka conjecture for algebraic fiber spaces over abelian varieties.

代数几何 · 数学 2016-08-04 Junyan Cao , Mihai Paun

These lectures provide an updated pedagogical treatment of the theoretical structure and phenomenology of some basic mechanisms for inflation, along with an overview of the structure of cosmological uplifts of holographic duality. A full…

高能物理 - 理论 · 物理学 2016-12-21 Eva Silverstein

We study weak approximation on rationally connected varieties under an assumption of strong approximation for a "simple" variety or under Schinzel's hypothesis. We also get some unconditional results.

数论 · 数学 2021-09-10 Dasheng Wei

We prove that triangular configurations are plentiful in large subsets of cartesian squares of finite quasirandom groups from classes having the quasirandom ultraproduct property, for example the class of finite simple groups. This is…

动力系统 · 数学 2018-03-13 Vitaly Bergelson , Donald Robertson , Pavel Zorin-Kranich

We show that the Sibuya distribution and its non-critical relatives are relevant in the context of the recursive generation of both simply generated and increasing critical trees' and forests' progenies. A special class of generalized…

组合数学 · 数学 2025-10-14 Thierry E Huillet

We introduce the quasi-ordinarization transform of a numerical semigroup. This transform will allow to organize all the semigroups of a given genus in a forest rooted at all quasi-ordinary semigroups with the given genus. This construction…

Under some positivity assumptions, extension properties of rationally connected fibrations from a submanifold to its ambient variety are studied. Given a family of rational curves on a complex projective manifold X inducing a covering…

代数几何 · 数学 2008-03-05 Mauro C. Beltrametti , Tommaso de Fernex , Antonio Lanteri

Shnirel'man's inequality and Shnirel'man's basis theorem are fundamental results about sums of sets of positive integers in additive number theory. It is proved that these results are inherently order-theoretic and extend to partially…

数论 · 数学 2025-05-02 Melvyn B. Nathanson

This is a broad-brush review of how string theory addresses several important questions of gravitational physics. The problem of non-renormalizability is first reviewed, followed by introduction of string theory as an ultraviolet-finite…

高能物理 - 唯象学 · 物理学 2007-05-23 Steven B. Giddings

We consider multidimensional optimization problems, which are formulated and solved in terms of tropical mathematics. The problems are to minimize (maximize) a linear or nonlinear function defined on vectors over an idempotent semifield,…

最优化与控制 · 数学 2024-01-18 N. Krivulin

Using groups with triality we obtain some general multiplication formulas in Moufang loops, construct Moufang extensions of abelian groups, and describe the structure of minimal extensions for finite simple Moufang loops over abelian…

群论 · 数学 2016-06-22 Alexander N. Grishkov , Andrei V. Zavarnitsine