Nyayapathi V.V.J. Swamy is a mathematical physicist. He is well known for his contributions to the physics of relativistic harmonic oscillator which found wide applications in Atomic, Nuclear and High Enegy Physics. Some of the citations to Swamy's work on the relativistic oscillator are given in references . A review of the history and the generalized treatment of the relativistic harmonic oscillator is given by Lisboa et al
He is also well known for his group theoretical contributions to mathematical physics. His widely used textbook co-authored with Mark A. Samuel, "Group Theory Made Easy for Scientists and Engineers" (Wiley-Interscience 1979), was very popular.
L.C. Bidenharn and Swamy published very influential papers on the relativistic Kepler problem. . They introduced a symmetric Hamiltonian and solved the Dirac Equation for the Hydrogen atom. The history of this effort is given in Harold V. McIntosh's website
Swamy received subsequently a BS degree in Mathematics, a BS and MS degree in Physics all from Bombay University, and a PhD degree in Physics from Florida State University. He has lectured in many universities, was a guest scientist in Julich, Germany and Cambridge University in UK. He has served as a professor of physics at Oklahoma State University until his retirement.