Results 31 to 40 of about 7,627,633 (340)

From ∨e-Semigroups to Hypersemigroups

open access: yesDiscussiones Mathematicae - General Algebra and Applications, 2021
A poe-semigroup is a semigroup S at the same time an ordered set having a greatest element “e” in which the multiplication is compatible with the ordering.
Kehayopulu Niovi
doaj   +1 more source

Regular Operator Equations: Conditions for Regularity [PDF]

open access: yesProceedings of the American Mathematical Society, 1982
Regular operator equations are causal equations admitting unique solutions and have the property that all of their limiting equations along solutions admit unique solutions. Sufficient conditions which guarantee that an operator equation x = T x x = Tx is regular are given in case T T is
openaire   +2 more sources

On some regular and singular problems of Birkhoff interpolation

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1994
Here we investigate the pure (0,1,…,r−2,r)-interpolation problem on the zeros of (1−x2)Pn(α)(x)=(1−x2)Pn(α,α)(x), α>−1, where Pn(α,α)(x) is the Jacobi polynomial of degree n with β=α.
N. Jhunjhunwala, J. Prasad
doaj   +1 more source

Construction of Regular Developable Bézier Patches

open access: yesMathematical and Computational Applications, 2019
The modeling of developable surfaces is considered a very important application in plat-metal-based industries. Relating to the purpose, this discussion aims to obtain some formulas for constructing the regular developable Bézier patches, in which
Kusno
doaj   +1 more source

Regular spherical dust spacetimes [PDF]

open access: yes, 1998
Physical (and weak) regularity conditions are used to determine and classify all the possible types of spherically symmetric dust spacetimes in general relativity. This work unifies and completes various earlier results.
A Papapetrou   +13 more
core   +3 more sources

El género Prosopis (Leguminosae) en la Provincia de La Pampa (República Argentina)

open access: yesSemiárida, 2020
El presente estudio del género Prosopis L. emend. BUrXart(Leguminosas Juss.), en la Provincia de La Pampa se basa en la morfologla extema. Como resultado se reconocen 7 especies, 6 variedades y 1 forma, de las que 2 especies, 2 variedades y 1 forma son ...
Pedro E. Steibel, Héctor O. Troiani
doaj  

r-Regularity

open access: yesJournal of Mathematical Imaging and Vision, 2014
We provide a characterization of r-regular sets in terms of the Lipschitz regularity of normal vector fields to the boundary.
Duarte, P., Torres, M. J.
openaire   +4 more sources

Regular Boardgames

open access: yes, 2018
We propose a new General Game Playing (GGP) language called Regular Boardgames (RBG), which is based on the theory of regular languages. The objective of RBG is to join key properties as expressiveness, efficiency, and naturalness of the description in ...
Kowalski, Jakub   +3 more
core   +1 more source

Another construction of edge-regular graphs with regular cliques

open access: yes, 2018
We exhibit a new construction of edge-regular graphs with regular cliques that are not strongly regular. The infinite family of graphs resulting from this construction includes an edge-regular graph with parameters $(24,8,2)$.
Greaves, Gary R. W., Koolen, J. H.
core   +1 more source

Local algorithms, regular graphs of large girth, and random regular graphs

open access: yes, 2016
We introduce a general class of algorithms and supply a number of general results useful for analysing these algorithms when applied to regular graphs of large girth. As a result, we can transfer a number of results proved for random regular graphs into (
Hoppen, Carlos, Wormald, Nicholas
core   +1 more source

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