IEEE

Investigation Into Variation of Resistivity and Permittivity of Aqueous Solutions and Soils With Frequency and Current Density

Abstract: Soil parameter characterization and the variation of permittivity and resistivity with frequency (dispersion) and current density have been the subject of many experimental studies but ...
Scientific Research Publishing

E. Goursat, “A Course in Mathematical Analysis, Vol. 3: Variation of Solutions and Partial Differential Equations of the Second Order and Integral Equations and Calculus of ...

ABSTRACT: In this paper, Goursat’s problems for: linear and nonlinear hyperbolic equations of second-order, systems of nonlinear hyperbolic equations and fourth-order linear hyperbolic equations in ...
IEEE

Periodic Solutions of a Class of Second-Order Differential Equation with Time Delays and Variation Coefficients in Complete B-Metric Spaces

Abstract: Time-delay differential equations have important applications in physical chemistry, engineering, information, economy, especially in biological mathematics and many other fields. In this ...