A survey of weighted substitution operators and generalizations of Banach--Stone theorem. Singh, R.K. — 2005 International Journal of Mathematics and Mathematical Sciences
Spectral mapping theorems and stability theory in linear dynamical systems. Singh, R.K. — 2010 Annals of Functional Analysis (AFA) [electronic only]
Some results on composition operators on ℓ 2 . Singh, R.K.; Gupta, D.K.; Komal, B.S. — 1979 International Journal of Mathematics and Mathematical Sciences
Functional homomorphisms and dynamical systems. Singh, R.K.; Singh, P.; Pandey, V.K. — 2010 Banach Journal of Mathematical Analysis [electronic only]