activity
20202026
most citedHigh order approximation to Caputo derivative on graded mesh and time-fractional diffusion equation for non-smooth solutions

2 citations · 2 across the 3 of their papers we have counts for

collaborators

5 papers

math.NA2026

Stochastic Galerkin Method for Fractional Boundary Value Problems: Convergence Analysis and Numerical Treatment

Abhishek Kumar Singh, Dhyan Divakar Laad, Vaibhav Mehandiratta +1

We study two-point fractional boundary value problems with uncertain input data, where randomness may enter through the coefficients and boundary conditions. To quantify the result…

cs.LG2026

QGPINNs: A Physics-Informed Neural Network Framework for Nonlocal Differential Equations on Quantum Graphs

Vaibhav Mehandiratta, Saket Ramchandra

We propose QGPINNs, a physics-informed neural network framework developed in PyTorch for the numerical solution of nonlocal differential equations on quantum graphs. The framework…

math.ST2024

Linear cost and exponentially convergent approximation of Gaussian Matérn processes on intervals

David Bolin, Vaibhav Mehandiratta, Alexandre B. Simas

The computational cost for inference and prediction of statistical models based on Gaussian processes with Matérn covariance functions scales cubicly with the number of observation…

math.NA2023★ 2 cited

High order approximation to Caputo derivative on graded mesh and time-fractional diffusion equation for non-smooth solutions

Shweta Kumari, Abhishek Kumar Singh, Vaibhav Mehandiratta +1

In this paper, a high-order approximation to Caputo-type time-fractional diffusion equations involving an initial-time singularity of the solution is proposed. At first, we employ…

math.AP2020

Existence and uniqueness of time-fractional diffusion equation on a metric star graph

Vaibhav Mehandiratta, Mani Mehra, Gunter Leugering

In this paper, we study the time-fractional diffusion equation on a metric star graph. The existence and uniqueness of the weak solution are investigated and the proof is based on…