Results 31 to 40 of about 1,959,155 (313)

A q-oscillator Green’s function [PDF]

open access: yesJournal of Mathematical Physics, 1997
By using the generating function formula for the product of two q-Hermite polynomials, q-deformation of the Feynman Green’s function for the harmonic oscillator is obtained.
Ahmedov, H, Duru, IH
openaire   +5 more sources

3D Dust map from Green et al. (2015) [PDF]

open access: yes
A three-dimensional map of dust reddening, covering the three quarters of the sky surveyed by the Pan-STARRS 1 (PS1) survey. We use PS1 and 2MASS optical and near-infrared photometry to infer distances and reddenings to ~800 million stars.
Green, Gregory
core   +3 more sources

Robust Near-Diagonal Green Function Estimates [PDF]

open access: yes, 2023
Kaßmann M, Kim M, Lee K-A. Robust Near-Diagonal Green Function Estimates. International Mathematics Research Notices. 2023: rnad106.We prove sharp near-diagonal pointwise bounds for the Green function G(O)(x,y) for nonlocal operators of fractional order ...
Lee, Ki-Ahm   +2 more
core   +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

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

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

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

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

Ecological Zoning Based on Spatial Patterns of Ecosystem Service Values and Landscape Ecological Risk in the Miyun Reservoir Basin

open access: yesLand
Ecological zoning is important for understanding spatial heterogeneity and supporting landscape-level management. However, existing approaches rarely integrate ecosystem service supply with ecological risk, and their underlying nonlinear relationships ...
Feifan Li   +4 more
doaj   +1 more source

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