Results 11 to 20 of about 47,096,289 (234)

Variations in radiocarbon ages of various organic fractions in core sediments from Erhai Lake, SW China [PDF]

open access: yes, 2003
Radiocarbon dating was performed for the extracted organic fractions (cellulose-rich and humic acid fractions of plant fragment; fulvic acid, humic acid and humin fractions of humus substance) and shell from core sediments of the Erhai Lake, SW China ...
Xu, S., Zheng, G.
core   +9 more sources

On the fractional p-Laplacian problems [PDF]

open access: yesJournal of Inequalities and Applications, 2021
AbstractThis paper deals with nonlocal fractionalp-Laplacian problems with difference. We get a theorem which shows existence of a sequence of weak solutions for a family of nonlocal fractionalp-Laplacian problems with difference. We first show that there exists a sequence of weak solutions for these problems on the finite-dimensional subspace. We next
Q-Heung Choi, Tacksun Jung
openaire   +2 more sources

On fractional $(p,q)$-calculus [PDF]

open access: yesAdvances in Difference Equations, 2020
AbstractIn this paper, the new concepts of$(p,q)$(p,q)-difference operators are introduced. The properties of fractional$(p,q)$(p,q)-calculus in the sense of a$(p,q)$(p,q)-difference operator are introduced and developed.
Jarunee Soontharanon   +1 more
openaire   +2 more sources

$P$-fractions and the Padé table

open access: yesRocky Mountain Journal of Mathematics, 1974
A. Magnus
semanticscholar   +3 more sources

The parabolic p-Laplacian with fractional differentiability [PDF]

open access: yesIMA Journal of Numerical Analysis, 2020
Abstract We study the parabolic $p$-Laplacian system in a bounded domain. We deduce optimal convergence rates for the space–time discretization based on an implicit Euler scheme in time. Our estimates are expressed in terms of Nikolskiǐ spaces and therefore cover situations when the (gradient of the) solution has only fractional ...
Breit, Dominic   +3 more
openaire   +5 more sources

The connection between $P$-fractions and associated fractions

open access: yesProceedings of the American Mathematical Society, 1970
The associated contiaoed fractioas of a power series A, is a special case of the P-fractioo of a power series L*. The latter is closely coo nected withi the Pad6 table of L*. We prove that every P-fraction is the limi-it of the appropriate contraction of associated fractions in the sense that as the coefficients of L approach those r)f L* the e'lements
A. Magnus
semanticscholar   +2 more sources

Colourful and Fractional (p,q)-theorems [PDF]

open access: yesDiscrete & Computational Geometry, 2013
Let \(p\geq q \geq d +1\) be positive integers. Let \(\mathcal{F}_1, \dots \mathcal{F}_p\) be finite families of convex sets in \(\mathbb{R}^d\) and \(\mathcal{F}\) their union painted with different colors. The family \(\mathcal{F}\) satisfies the heterochromatic \((p, q)\)-condition, to be denoted by \((p, q)_H\), if every heterochromatic \(p\)-tuple
Imre Bárány   +4 more
openaire   +4 more sources

Fractions avec une longueur, égalité, simplification

open access: yes, 2016
Ensino Fundamental Final::MatemáticaL’objet présente la simplification des fractions en faisant usage de sa représentation graphique sur la ligne, où la fraction correspond à la longueur d'un segment [AB].
Dassonval, Roland
core   +5 more sources

On $p$-adic multidimensional continued fractions [PDF]

open access: yesMathematics of Computation, 2019
Multidimensional continued fractions (MCFs) were introduced by Jacobi and Perron in order to generalize the classical continued fractions. In this paper, we propose an introductive fundamental study about MCFs in the field of the $p$--adic numbers $\mathbb Q_p$.
Nadir Murru, Lea terracini
openaire   +4 more sources

Eigenvalues for systems of fractional $p$-Laplacians [PDF]

open access: yesRocky Mountain Journal of Mathematics, 2018
19 ...
Pezzo, Leandro M. Del, Rossi, Julio D.
openaire   +5 more sources

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