A. K. Singh

activity

20162023

most citedOn the number of representations by certain octonary quadratic forms with coefficients 1, 2, 3, 4 and 6

3 citations · 3 across the 7 of their papers we have counts for

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math.NT2023

A simple extension of Ramanujan-Serre derivative map and some applications

B. Ramakrishnan, Brundaban Sahu, Anup Kumar Singh

If $f (z)$ is a modular form of weight $k$ , then the differential operator $ϑ_{k}$ defined by $ϑ_{k} (f) = \frac{1}{2 π i} \frac{d}{d z} f (z) - \frac{k}{12} E_{2} (z) f (z)$ (kno…