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JOURNALS // Zhurnal Vychislitel'noi Matematiki i Matematicheskoi Fiziki // Archive

Zh. Vychisl. Mat. Mat. Fiz., 2025 Volume 65, Number 12, Pages 2077–2083 (Mi zvmmf12108)

Mathematical physics

Surface charge density of a conducting ellipsoid in a coaxial electric field

A. O. Savchenko

Institute of Computational Mathematics and Mathematical Geophysics of Siberian Branch of Russian Academy of Sciences, Novosibirsk

Abstract: An effective method for determining the surface charge density of ellipsoidal conductors in an external axisymmetric electric field is proposed. The method is based on solving a one-dimensional Fredholm integral equation of the first kind using the Galerkin method. Numerical experiments conducted to solve model problems illustrate a significant reduction in computational error using the proposed method compared to errors obtained in previous studies on this topic.

Key words: electric field, conductor, surface charge, Fredholm equation of the first kind, Galerkin method.

UDC: 519.63

Received: 05.03.2025
Revised: 05.03.2025
Accepted: 19.09.2025

DOI: 10.7868/S3034533225120097


 English version:
Computational Mathematics and Mathematical Physics, 2025, 65:12, 2972–2978

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© Steklov Math. Inst. of RAS, 2026