SAP is an open access publisher of journals covering a wide range of academic disciplines.
International Journal of Theoretical and Mathematical Physics is a peer-reviewed journal, publishing papers on all areas in which theoretical physics and mathematics interact with each other. It features the reports on current developments in theoretical physics as well as related mathematical problems.
Professor, Plovdiv University, Bulgaria
Differential Equations, Difference Equations, Nonlinear Analysis, Stochasticf Differential Equations, Deterministic and Stochastic modeling