This paper provides a full exposition of the proportionality coefficients used in two different differential equation models, allowing for a more complete understanding of their meaning in the context ...

This is a preview. Log in through your library . Abstract This article considers estimation of constant and time-varying coefficients in nonlinear ordinary differential equation (ODE) models where ...

Boundary value problems for degenerate elliptic differential equations constitute a challenging and vibrant area of mathematical analysis. These problems involve differential operators whose ...