On Bivariate Fractal Interpolation for Countable Data and Associated Nonlinear Fractal Operator. - Kshitij Kumar Pandey; P. Viswanathan (CoRR, 2020)

Multivariate fractal interpolation functions: Some approximation aspects and an associated fractal interpolation operator. - Kshitij Kumar Pandey; P. Viswanathan (CoRR, 2021)

In reference to a self-referential approach towards smooth multivariate approximation. - Kshitij Kumar Pandey; P. Viswanathan (Numer. Algorithms, 2022)