%0 Journal Article %A PUSHPA, K. %A VASUKI, K. R. %T EVALUATION OF CONVOLUTION SUMS $$\sum\limits_{l + km = n} {\sigma (l)\sigma (m)} $$ AND $$\sum\limits_{al + bm = n} {\sigma (l)\sigma (m)} $$ FOR k = a ยท b = 21, 33, AND 35 %J Glasgow mathematical journal %D 2022 %P 434-453 %V 64 %N 2 %U http://geodesic.mathdoc.fr/articles/10.1017/S0017089521000203/ %R 10.1017/S0017089521000203 %F 10_1017_S0017089521000203