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The speciality index, which has been mainly used in Numerical Relativity for studying gravitational waves phenomena as an indicator of the special or non-special Petrov type character of a spacetime, is applied here in the context of…

General Relativity and Quantum Cosmology · Physics 2016-08-31 Christian Cherubini , Donato Bini , Marco Bruni , Zoltan Perjes

We describe a deterministic process to associate a practical, permanent label to isomorphism classes of abelian varieties defined over finite fields with commutative endomorphism algebra as long as they are ordinary or defined over a prime…

Number Theory · Mathematics 2025-08-04 Edgar Costa , Taylor Dupuy , Stefano Marseglia , David Roe , Christelle Vincent

In this paper, we study properties of polynomials over division rings. Moreover, we present formulas for finding roots of some polynomials

Rings and Algebras · Mathematics 2024-03-19 Alina G. Goutor , Sergey V. Tikhonov

In this paper, we define an ordering relation for a set of complex numbers, and research the properties and theorems of the ordering, solve some simple complex inequalities with the ordering.

General Mathematics · Mathematics 2010-03-26 Sun Daochun , Gu Zhendong , Liu Weiqun , Yue Chao

Dilatations modify categories by imposing that some morphisms factorize through some others. This is formalized by a universal property. This text is devoted to introduce and study this construction. Examples of dilatations of categories…

Category Theory · Mathematics 2024-11-13 Arnaud Mayeux

In this short article we present some properties regarding the order and the type of an entire function.

Complex Variables · Mathematics 2021-09-07 Vassilis G. Papanicolaou , Eva Kallitsi , George Smyrlis

A specialization semilattice is a semilattice together with a coarser preorder satisfying a compatibility condition. We show that the category of specialization semilattices is isomorphic to the category of semilattices with a congruence,…

Rings and Algebras · Mathematics 2025-07-14 Paolo Lipparini

We describe a general method, originated by Ofer Gabber, for showing that a very general fiber in a family has certain properties. We illustrate this method with concrete examples taken from algebraic dynamics, the rationality problem for…

Algebraic Geometry · Mathematics 2025-06-30 Zinovy Reichstein , Federico Scavia

We prove some semipositivity theorems for singular varieties coming from graded polarizable admissible variations of mixed Hodge structure. As an application, we obtain that the moduli functor of stable varieties is semipositive in the…

Algebraic Geometry · Mathematics 2018-02-13 Osamu Fujino

In a recent paper, an algorithm has been presented for determining implications between a particular kind of category theoretic property represented by matrices -- the so called `matrix properties'. In this paper we extend this algorithm to…

Category Theory · Mathematics 2022-08-23 Michael Hoefnagel , Pierre-Alain Jacqmin

The endomorphism ring End(A) of an abelian variety A is an order in a semi-simple algebra over Q. The co-index of End(A) is the index to a maximal order containing it. We show that for abelian varieties of fixed dimension over any…

Number Theory · Mathematics 2014-07-03 Chia-Fu Yu

We study the Hp-Lq boundedness of certain integral operators of fractional type.

Classical Analysis and ODEs · Mathematics 2017-03-10 Pablo Rocha

We study correlation functions of the characteristic polynomials in coupled matrix models based on the Schur polynomial expansion, which manifests their determinantal structure.

Mathematical Physics · Physics 2022-05-06 Nicolas Babinet , Taro Kimura

In this paper we investigate some divisibility properties of Jacobsthal numbers.

Combinatorics · Mathematics 2022-12-20 Volkan Yildiz

The present article deals with properties of one class of functions with complicated local structure. These functions can be modeled by certain operators of digits. Such operators were considered by the author earlier (for example, see [27,…

General Mathematics · Mathematics 2024-03-12 Symon Serbenyuk

In this paper, we give a wavelet characterization of the upper global Holder index, which can be seen as the irregular counterpart of the usual global Holder index, for which a wavelet characterization is well-known.

Functional Analysis · Mathematics 2011-04-06 Marianne Clausel--Lesourd , Nicolay Samuel

In this article we shows some results about algebra with the group of units having special polynomial identity.

Rings and Algebras · Mathematics 2019-07-29 Claudenir Freire Rodrigues , Ramon Codamo B. da Costa

For two complex vector bundles admitting a homomorphism with isolated singularities between them, we establish a Poincar\'e-Hopf type formula for the difference of the Chern character numbers of these two vector bundles. As a consequence,…

Geometric Topology · Mathematics 2010-06-14 Huitao Feng , Weiping Li , Weiping Zhang

Numerous results on self-reciprocal polynomials over finite fields have been studied. In this paper we generalize some of these to a-self reciprocal polynomials defined in [4]. We consider some properties of the divisibility of a-reciprocal…

Number Theory · Mathematics 2014-07-02 Ryul Kim , Ok-Hyon Song , Hyon-Chol Ri

We study a family of subrings, indexed by the natural numbers, of the mod-p cohomology of a finite group G. These subrings are based on a family of v_n-periodic complex oriented cohomology theories and are constructed as rings of…

Algebraic Topology · Mathematics 2015-02-23 David J. Green , John R. Hunton , Bjoern Schuster