Results 21 to 30 of about 18,268,616 (337)

INCEPTION OF GREEN FUNCTION FOR THE THIRD-ORDER LINEAR DIFFERENTIAL EQUATION THAT IS INCONSISTENT WITH THE BOUNDARY PROBLEM CONDITIONS

open access: yesВестник КазНУ. Серия математика, механика, информатика, 2021
Regarding the importance of teaching linear differential equations, it should be noted that every physical and technical phenomenon, when expressed in mathematical sciences, is a differential equation.
Ghulam Hazrat Aimal Rasa, G. Auzerkhan
doaj   +1 more source

Phonon Green's function. [PDF]

open access: yesProceedings of the National Academy of Sciences, 1991
The concepts of source and quantum action principle are used to produce the phonon Green's function appropriate for an initial phonon vacuum state. An application to the Mossbauer effect is presented.
openaire   +2 more sources

Discrete Green's Functions

open access: yesJournal of Combinatorial Theory, Series A, 2000
The authors study discrete Green's functions and their relationship with discrete Laplace equations. They give different ways to construct such functions: Eigenfunctions or Cartesian product of graphs, among others.
Chung, Fan, Yau, S.-T.
openaire   +1 more source

Semiclassical Green Function in Mixed Spaces [PDF]

open access: yes, 1997
A explicit formula on semiclassical Green functions in mixed position and momentum spaces is given, which is based on Maslov's multi-dimensional semiclassical theory.
Guangcan Yang   +10 more
core   +2 more sources

The best constant of Sobolev inequality corresponding to anti-periodic boundary value problem

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2014
In this paper we establish the best constant of $\mathcal{L}^{p}$ Sobolev inequality for a function with anti-periodic boundary conditions. The best constant is expressed by $\mathcal{L}^q$ norm of $(M-1)$-th order Euler polynomial.
Jozef Kiseľák
doaj   +1 more source

Nuclear Shadowing in DIS: Numerical Solution of the Evolution Equation for the Green Function [PDF]

open access: yes, 2003
Within a light-cone QCD formalism based on the Green function technique incorporating color transparency and coherence length effects we study nuclear shadowing in deep-inelastic scattering at moderately small Bjorken x_{Bj}.
A. Goldberg   +38 more
core   +2 more sources

Responses of unicellular predators to cope with the phototoxicity of photosynthetic prey

open access: yesNature Communications, 2019
Photosynthesis generates reactive oxygen species that can damage cells. Here, the authors show that unicellular predators of photosynthetic prey have shared responses to photosynthetic oxidative stress and these may also have been important for the ...
Akihiro Uzuka   +7 more
doaj   +1 more source

Multipole matrix elements of Green function of Laplace equation [PDF]

open access: yes, 2015
Multipole matrix elements of Green function of Laplace equation are calculated. The multipole matrix elements of Green function in electrostatics describe potential on a sphere which is produced by a charge distributed on the surface of a different ...
Górka, Przemysław, Makuch, Karol
core   +1 more source

Melt strength and stretching ratio of low-density polyethylene composites loaded with nanoscale zinc oxide

open access: yesAdvanced Industrial and Engineering Polymer Research, 2020
The melt drawability including melt strength (MS) and stretching ratio (V) of the neat low-density polyethylene (LDPE) and the LDPE composites loaded with a nanometer zinc oxide (nano-ZnO) were measured using a melt spinning method in capillary extruding
Ji-Zhao Liang
doaj   +1 more source

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

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