Results 21 to 30 of about 160,667 (260)

Osculating hypersurfaces of higher order

open access: yesLietuvos Matematikos Rinkinys, 2011
Oscurating surfaces of second order have been studied in classical differential geometry [1]. In this article we generalize this notion to osculating hyper-surfaces of higher order of hyper-surfaces in Euclidean n-space.
Kazimieras Navickis
doaj   +1 more source

Representing choice functions by a total hyper-order

open access: yesCoRR, 2021
Choice functions over a set $X$ that satisfy the Outcast, a.k.a. Aizerman, property are exactly those that attach to any set its maximal subset relative to some total order of ${2}^{X}$.
openaire   +2 more sources

Operations on hyperideals in ordered Krasner hyperrings [PDF]

open access: yesAnalele Universitatii "Ovidius" Constanta - Seria Matematica, 2016
Abstract In the present paper, we will concentrate our efforts on ordered Krasner hyperrings and investigate some of their related properties. Moreover, we introduce and analyze the notion of interior hyperideal in ordered Krasner hyperrings.
Omidi, S., Davvaz, B., Corsini, P.
openaire   +3 more sources

Hyper-order and fixed points of meromorphic solutions of higher order linear differential equations

open access: yesArab Journal of Mathematical Sciences, 2016
The purpose of this paper is to study the growth and fixed points of meromorphic solutions and their derivatives to complex higher order linear differential equations whose coefficients are meromorphic functions.
Habib Habib, Benharrat Belaïdi
doaj   +1 more source

On hyper BCC-algebras

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2006
We study hyper BCC-algebras which are a common generalization of BCC-algebras and hyper BCK-algebras. In particular, we investigate different types of hyper BCC-ideals and describe the relationship among them.
R. A. Borzooei   +2 more
doaj   +1 more source

Hyper-cores promote localization and efficient seeding in higher-order processes

open access: yesNature Communications, 2023
Going beyond networks, to include higher-order interactions of arbitrary sizes, is a major step to better describe complex systems. In the resulting hypergraph representation, tools to identify structures and central nodes are scarce.
Marco Mancastroppa   +3 more
doaj   +1 more source

Twins in ordered hyper-matchings

open access: yesDiscussiones Mathematicae Graph Theory
An ordered $r$-matching of size $n$ is an $r$-uniform hypergraph on a linearly ordered set of vertices, consisting of $n$ pairwise disjoint edges. Two ordered $r$-matchings are isomorphic if there is an order-preserving isomorphism between them. A pair of twins in an ordered $r$-matching is formed by two vertex disjoint isomorphic sub-matchings. Let $t^
Andrzej Dudek   +2 more
openaire   +3 more sources

On the growth of solutions of some higher order linear differential equations with entire coefficients

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2011
In this paper, we investigate the order and the hyper-order of entire solutions of the linear differential equation \begin{equation*} f^{\left( k\right) }+\left( D_{k-1}+B_{k-1}e^{b_{k-1}z}\right) f^{\left(k-1\right) }+ ...
H. Habib, B. Belaidi
doaj   +1 more source

Higher-Order Laplace Equations and Hyper-Cauchy Distributions [PDF]

open access: yesJournal of Theoretical Probability, 2013
20 pages; 5 figures; Journal of Theoretical ...
ORSINGHER, Enzo, D'OVIDIO, MIRKO
openaire   +3 more sources

T1 Over Squared Proton Density Ratio to Characterize Multiple Sclerosis Lesions

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Differentiating remyelinated from demyelinated lesions in MS remains challenging without histological confirmation. This study introduces the T1‐to‐PD2 ratio (TPR) imaging approach and evaluates its ability to characterize MS lesions alongside other quantitative MRI (qMRI) metrics. Methods Thirty individuals with MS (mean age: 47.5 ± 
Sarah J. Wright   +10 more
wiley   +1 more source

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