The 2017 leak of Equation Group tools by a mysterious group calling itself the Shadow Brokers was one of the most significant cyber security stories in recent years. Equation is regarded as one of the ...

Boundary value problems (BVPs) lie at the heart of mathematical analysis and have wide-ranging applications across physics, engineering and other scientific disciplines. At their core, these problems ...

The dynamics of many physical systems are usually described in terms of wave equations subject to certain boundary conditions. This is the case, for example, in classical and quantum mechanics, ...

This is a preview. Log in through your library . Abstract This paper provides sufficient conditions to guarantee the existence and multiplicity of positive solutions for a singular semipositone ...

This is a preview. Log in through your library . Abstract In this paper we present a singular perturbation analysis of the fundamental semiconductor device equations which form a system of three ...

Elsevier, a world-leading provider of scientific, technical and medical information products and services, today announced the expansion of Knovel Interactive Equations. The added content will include ...