Results 21 to 30 of about 1,951,550 (313)

BOUNDARY VALUE PROBLEM WITH SHIFT FOR A FRACTIONAL ORDER DELAY DIFFERENTIAL EQUATION [PDF]

open access: yesVestnik KRAUNC: Fiziko-Matematičeskie Nauki, 2019
In this paper we prove existence and uniqueness theorem to a boundary value problem with shift for a fractional order ordinary delay differential equation. The solution of the problem is written out in terms of the Green function.
M. G. Mazhgikhova
doaj   +1 more source

Influence of an L^{p}-perturbation on Hardy-Sobolev inequality with singularity a curve [PDF]

open access: yesOpuscula Mathematica, 2021
We consider a bounded domain \(\Omega\) of \(\mathbb{R}^N\), \(N \geq 3\), \(h\) and \(b\) continuous functions on \(\Omega\). Let \(\Gamma\) be a closed curve contained in \(\Omega\).
Idowu Esther Ijaodoro   +1 more
doaj   +1 more source

Application of the Fourier method to solve the problems of the theory of drying by electromagnetic radiation

open access: yesФизика волновых процессов и радиотехнические системы, 2019
On the basis of the idea of splitting the process into physical factors, using the Fourier method and the green function apparatus, an algorithm for constructing a new class of solutions to the initial boundary value problems of the theory of drying by ...
A.M. Afanasiev   +2 more
doaj   +1 more source

New Hermite Hadamard type inequalities for twice differentiable convex mappings via Green function and applications

open access: yesMoroccan Journal of Pure and Applied Analysis, 2016
We derive some Hermite Hamamard type integral inequalities for functions whose second derivatives absolute value are convex. Some eror estimates for the trapezoidal formula are obtained. Finally, some natural applications to special means of real numbers
Erden Samet, Sarikaya Mehmet Zeki
doaj   +1 more source

GREEN FUNCTIONS FOR TOPOLOGY CHANGE [PDF]

open access: yesInternational Journal of Modern Physics A, 2005
We explicitly calculate the Green functions describing quantum changes of topology in Friedmann-Lemaître-Robertson-Walker Universes whose spacelike sections are compact but endowed with distinct topologies. The calculations are performed using the long wavelength approximation at second order in the gradient expansion.
Martin, Jérôme   +2 more
openaire   +4 more sources

Dominance of forest structural traits in shaping soil bacterial community assembly in Beijing’s urban forests

open access: yesFrontiers in Soil Science
Urban forests constitute vital ecological interfaces between built environments and natural systems, yet the mechanisms driving soil microbial community assembly in these ecosystems remain poorly understood.
Yi Zheng   +10 more
doaj   +1 more source

Evaluation of the One-Dimensional Lp Sobolev Type Inequality

open access: yesMathematics, 2020
This study applies the extended L 2 Sobolev type inequality to the L p Sobolev type inequality using Hölder’s inequality. The sharp constant and best function of the L p Sobolev type inequality are found using a Green ...
Kazuo Takemura, Yoshinori Kametaka
doaj   +1 more source

On green’s function of second darboux problem for hyperbolic equation

open access: yesВестник КазНУ. Серия математика, механика, информатика, 2022
A definition and justify a method for constructing the Green’s function of the second Darboux problem for a two-dimensional linear hyperbolic equation of the second order in a characteristic triangle is given.
B. Derbissaly
doaj   +1 more source

Identification of Keystone Plant Species for Avian Foraging and Nesting in Beijing’s Forest Ecosystems: Implications for Urban Forest Bird Conservation

open access: yesAnimals
Urban wildlife conservation is emerging as a critical component of sustainable city ecosystems. Rather than simply increasing tree abundance or species richness, conservation management should focus on key species. In this research, Xishan Forest Park in
Lele Lin   +5 more
doaj   +1 more source

Green Functions of the First Boundary-Value Problem for a Fractional Diffusion—Wave Equation in Multidimensional Domains

open access: yesMathematics, 2020
We construct the Green function of the first boundary-value problem for a diffusion-wave equation with fractional derivative with respect to the time variable.
Arsen Pskhu
doaj   +1 more source

Home - About - Disclaimer - Privacy