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math.AP2020

On the Existence Uniqueness and Numerical Computation of Non-linear Coupled Elliptic PDE System with its application

B. V. Rathish Kumar, Sangita Dey

In this study we prove the existence-uniqueness of a coupled non-linear elliptic PDE system using Lax-Milgram theorem, Galerkin Method, Brouwer's fixed point theorem. Later we deri…

math.AP2019

Subgrid multiscale stabilized finite element analysis of fully-coupled unified Stokes-Darcy-Brinkman/Transport model

B. V. Rathish Kumar, Manisha Chowdhury

In this study, a stabilized finite element analysis of unified Stokes-Darcy-Brinkman system fully coupled with variable coefficient Advection-Diffusion-Reaction equation(VADR) has…

math.AP2019

Stabilized subgrid multiscale finite element formulation for advection-diffusion-reaction equation with variable coefficients coupled with Stokes-Darcy equation

Manisha Chowdhury, B. V. Rathish Kumar

In this paper subgrid multiscale stabilized finite element method for Advection-Diffusion-Reaction (ADR) equation coupled with Stokes-Darcy flow problem has been studied. Here the…

math.AP2019

Finite element apriori error estimate for a class of Cardiac Electric models

Meena Pargaei, B. V. Rathish Kumar

In this study we derive the Finite element apriori error estimate for the monodomain cardiac electric model in conjunction with the generic form for a class of nonlinear ionic mode…

math.AP2019

On the existence-uniqueness and computation of solution of a coupled PDE-ODE system with application to cardiac electric activity

Meena Pargaei, B. V. Rathish Kumar

In this study, we consider a system of degenerate reaction-diffusion equations, which govern the electric activity in the heart with a diffusion term modeling the potential in the…

math.AP2018

On subgrid multiscale stabilized finite element method for advection-diffusion-reaction equation with variable coefficients

Manisha Chowdhury, B. V. Rathish Kumar

In this study a stabilized finite element method for solving advection-diffusion-reaction equation with spatially variable coefficients has been carried out. Here subgrid scale app…