Results 51 to 60 of about 101 (75)

Existence and stability for a boundary value problem of Ambartsumian equation with -Hilfer generalized proportional fractional derivative

Boletim da Sociedade Paranaense de Matemática
In this paper, we prove the existence and uniqueness of solution for the mixed boundary value problem of Ambartsumian equation using -Hilfer generalized proportional fractional derivative(PFD). The main principles applied to investigate our results are based on the standard fixed point theorems.
S. Manikandan, D. Vivek, K. Kanagarajan, Elsayed M. Elsayed   +3 more
openaire   +1 more source

Atmospheric Correction for High-Resolution Shape from Shading on Mars. [PDF]

J Imaging, 2022
Hess M, Tenthoff M, Wohlfarth K, Wöhler C.   +3 more
europepmc   +1 more source

On azimuthal harmonics of the Henyey—Greenstein phase function

, 1995
Получена рекуррентная формула для азимутальных гармоник индикатрисы рассеяния Хеньи—Гринстейна. Если эта индикатриса достаточно сильно вытянута вперед, то использование найденной формулы существенно ускоряет численное решение уравнения Амбарцумяна для ...
Яновицкий, Э.Г.
core  

Analysis of Topological Degree Method for Solving Ambartsumian-Type Mathieu Fractional Differential Equations Under Φ-Hilfer Derivative

International Journal of Analysis and Applications
The Ambartsumian equation arises in astronomy and is used in the theory of surface brightness in the Milky Way. In this manuscript, we consider a new category of Ambartsumian-type Mathieu fractional differential systems involving the Φ-Hilfer fractional derivative.
R. Vivek, R. George
openaire   +1 more source

Random space-filling in one dimension

, 1964
We construct a model of a random car-parking procedure as follows. Take the segments [0, x] (x ≧ 0) of the x-axis. If x < 1, this segment is considered to be a "gap". If x ≧ 1, choose a random number t₁ ∈ [0, x - 1] (i.e.
Mannion, David
core  

Solution of Ambartsumian Delay Differential Equation in the q-Calculus

International Journal of Analysis and Applications, 2021
openaire   +2 more sources

New Analytic Solution for Ambartsumian Equation

Journal of Mathematics and System Science, 2018
null Fahad M. Alharbi, null Abdelhalim Ebaid   +1 more
openaire   +1 more source

Radiative-transfer modeling of spectra of planetary regoliths using cluster-based dense packing modifications. [PDF]

J Geophys Res Planets, 2018
Ito G, Mishchenko MI, Glotch TD.
europepmc   +1 more source

Phase II trial to investigate the safety and efficacy of orally applied niclosamide in patients with metachronous or sychronous metastases of a colorectal cancer progressing after therapy: the NIKOLO trial. [PDF]

BMC Cancer, 2018
Burock S, Daum S, Keilholz U, Neumann K, Walther W, Stein U.   +5 more
europepmc   +1 more source

X and y operators for general linear transport processes. [PDF]

Proc Natl Acad Sci U S A, 1975
Casti J.
europepmc   +1 more source