On almost ( N , p , q ) summability of conjugate Fourier series. Lal, Shyam; Nigam, Hare Krishna — 2001 International Journal of Mathematics and Mathematical Sciences
Degree of approximation of conjugate of a function belonging to Lip ( ξ ( t ) , p ) class by matrix summability means of conjugate Fourier series. Lal, Shyam; Nigam, Hare Krishna — 2001 International Journal of Mathematics and Mathematical Sciences
A note on the convergence of a pair of sequences of mappings Shyam Lal Singh — 1979 Archivum Mathematicum