Results 21 to 30 of about 14,383,600 (293)

Problem on extremal decomposition of the complex plane

open access: yesAnalele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2019
In geometric function theory of a complex variable problems on extremal decomposition with free poles on the unit circle are well known.
Denega Iryna, Zabolotnii Yaroslav
doaj   +1 more source

On logarithmic residue of monogenic functions in a three-dimensional commutative algebra with one-dimensional radical

open access: yesAnalele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2017
We consider monogenic functions taking values in a three-dimensional commutative algebra A2 over the field of complex numbers with one- dimensional radical. We calculate the logarithmic residues of monogenic functions acting from a three-dimensional real
Pukhtaievych Roman, Plaksa Sergiy
doaj   +1 more source

Computational Modeling of Lymph Filtration and Absorption in the Lymph Node by Boundary Integral Equations

open access: yesAlgorithms, 2022
We develop a numerical method for solving three-dimensional problems of fluid filtration and absorption in a piecewise homogeneous medium by means of boundary integral equations.
Alexey Setukha, Rufina Tretiakova
doaj   +1 more source

Reconstruction of the interplanetary magnetic field from the magnetosheath data: A steady-state approach

open access: yesFrontiers in Physics, 2022
In the steady-state picture, the magnetic field can be formulated by a curl-free potential field in the magnetosheath region, and the sheath field is uniquely and linearly determined by the upstream field and the transformation matrix which contains the ...
S. Toepfer, Y. Narita, D. Schmid
doaj   +1 more source

On the double layer potential ansatz for the $n$-dimensional Helmholtz equation with Neumann condition

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2020
In the present paper we consider the Neumann problem for the $n$-dimensional Helmholtz equation. In particular we deal with the problem of representability of the solutions by means of double layer potentials.
Alberto Cialdea   +2 more
doaj   +1 more source

Numerical Study for Unsteady Waves Generated by Flow over a Permeable Wavy Bed

open access: yesFluids, 2021
In this paper, we formulate a numerical model to study unsteady waves generated by fluid flow over a permeable wavy bed. The model is derived from boundary value problems using potential theory.
Ikha Magdalena, Kemal Firdaus
doaj   +1 more source

Hydrodynamic Characteristics of Floating Photovoltaic Systems under Ocean Loads

open access: yesJournal of Marine Science and Engineering, 2023
The floating photovoltaic (FPV) array, which consists of tens or hundreds of rows of floating photovoltaic systems, exhibits great economic and environmental benefits.
Jiahui Song   +3 more
doaj   +1 more source

Analysis of Water Infiltration under Impermeable Dams by Analytical and Boundary Element Methods in Complex

open access: yesAxioms, 2023
The boundary element method (BEM) is used by applying Cauchy’s formula to the boundary of the water movement domain under a dam. By approximating the border with a polygon through linear interpolation, the relationships between the complex velocities on ...
Elena Corina Cipu
doaj   +1 more source

Quantum potential theory

open access: yes, 2008
This volume contains the revised and completed notes of lectures given at the school "Quantum Potential Theory: Structure and Applications to Physics," held at the Alfried-Krupp-Wissenschaftskolleg in Greifswald from February 26 to March 10, 2007 ...
CIPRIANI, FABIO EUGENIO GIOVANNI   +3 more
core   +1 more source

Generating Function Method for Calculating the Potentials of Inhomogeneous Polyhedra

open access: yesFrontiers in Physics, 2022
We propose a method of constructing analytical, closed-form expressions for electrostatic/Newtonian potentials of non-uniform polyhedral bodies, in which the density distributions are polynomials of coordinates.
Alexey Vladimirovich Nenashev   +1 more
doaj   +1 more source

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