Results 21 to 30 of about 304,795 (244)

Star-regularity and regular completions [PDF]

open access: yesJournal of Pure and Applied Algebra, 2014
In this paper we establish a new characterisation of star-regular categories, using a property of internal reflexive graphs, which is suggested by a recent result due to O. Ngaha Ngaha and the first author. We show that this property is, in a suitable sense, invariant under regular completion of a category in the sense of A. Carboni and E. M.
Marino Gran   +2 more
openaire   +3 more sources

Analysis of radioactivity levels and hazard assessment of black sand samples from Rashid area, Egypt

open access: yesNuclear Engineering and Technology, 2017
The aim of this study is to evaluate the radioactivity levels and radiological impacts of representative black sand samples collected from different locations in the Rashid area, Egypt.
Mohamed A.E. Abdel-Rahman   +1 more
doaj   +1 more source

Regular packings of regular graphs

open access: yesDiscrete Mathematics, 2002
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
A. Gutiérrez, Anna S. Lladó
openaire   +3 more sources

The regularity criterion for weak solutions to the n-dimensional Boussinesq system

open access: yesBoundary Value Problems, 2017
We consider the Boussinesq system in the homogeneous spaces of degree −1. To narrow the gap for the existence of small regular solutions in B ˙ ∞ , ∞ − 1 ( R n ) $\dot{B}^{-1}_{\infty,\infty}(\mathbb{R}^{n})$ , the biggest homogeneous space of degree −1 ...
Xiaona Cui
doaj   +1 more source

Constancy of the Dimension for RCD(K,N) Spaces via Regularity of Lagrangian Flows [PDF]

open access: yesCommunications on Pure and Applied Mathematics, 2018
We prove a regularity result for Lagrangian flows of Sobolev vector fields over RCD(K, N) metric measure spaces; regularity is understood with respect to a newly defined quasi‐metric built from the Green function of the Laplacian. Its main application is
Elia Brué, Daniele Semola
semanticscholar   +1 more source

Regular colorings in regular graphs

open access: yesDiscussiones Mathematicae Graph Theory, 2020
An (r − 1, 1)-coloring of an r-regular graph G is an edge coloring (with arbitrarily many colors) such that each vertex is incident to r − 1 edges of one color and 1 edge of a different color. In this paper, we completely characterize all 4-regular pseudographs (graphs that may contain parallel edges and loops) which do not have a (3, 1)-coloring. Also,
Bernshteyn, Anton   +6 more
openaire   +4 more sources

Effects of Gait Strategy and Speed on Regularity of Locomotion Assessed in Healthy Subjects Using a Multi-Sensor Method

open access: yesSensors, 2019
The regularity of pseudo-periodic human movements, including locomotion, can be assessed by autocorrelation analysis of measurements using inertial sensors.
Marco Rabuffetti   +2 more
doaj   +1 more source

The ε - εβ Property in the Isoperimetric Problem with Double Density, and the Regularity of Isoperimetric Sets

open access: yesAdvanced Nonlinear Studies, 2020
We prove the validity of the ε-εβ{\varepsilon-\varepsilon^{\beta}} property in the isoperimetric problem with double density, generalising the known properties for the case of single density. As a consequence, we derive regularity for isoperimetric sets.
Pratelli Aldo, Saracco Giorgio
doaj   +1 more source

Algebraic renormalisation of regularity structures [PDF]

open access: yesInventiones Mathematicae, 2016
We give a systematic description of a canonical renormalisation procedure of stochastic PDEs containing nonlinearities involving generalised functions. This theory is based on the construction of a new class of regularity structures which comes with an ...
Y. Bruned, Martin Hairer, L. Zambotti
semanticscholar   +1 more source

Regularity of weak solutions for nonlinear parabolic problem with $p(x)$-growth

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2012
In this paper, we study the nonlinear parabolic problem with $p(x)$-growth conditions in the space $W^{1,x}L^{p(x)}(Q)$, and give a regularity theorem of weak solutions for the following equation $$\frac{\partial u}{\partial t}+A(u)=0$$ where $A(u ...
Yongqiang Fu, Mingqi Xiang, Ning Pan
doaj   +1 more source

Home - About - Disclaimer - Privacy