An H1-Galerkin mixed method for second order hyperbolic equations AK Pani, RK Sinha, AK Otta Int. J. Numer. Anal. Model 1 (2), 111-130, 2004 | 71 | 2004 |

Optimal error estimates for linear parabolic problems with discontinuous coefficients RK Sinha, B Deka SIAM journal on numerical analysis 43 (2), 733-749, 2005 | 69 | 2005 |

Some new error estimates of a semidiscrete finite volume element method for a parabolic integro-differential equation with nonsmooth initial data RK Sinha, RE Ewing, RD Lazarov SIAM journal on numerical analysis 43 (6), 2320-2343, 2006 | 46 | 2006 |

Mixed finite element approximations of parabolic integro-differential equations with nonsmooth initial data RK Sinha, RE Ewing, RD Lazarov SIAM journal on numerical analysis 47 (5), 3269-3292, 2009 | 41 | 2009 |

Finite element methods for semilinear elliptic and parabolic interface problems RK Sinha, B Deka Applied Numerical Mathematics 59 (8), 1870-1883, 2009 | 38 | 2009 |

Error estimates for semidiscrete Galerkin approximation to a time dependent parabolic integro-differential equation with nonsmooth data AK Pani, RK Sinha Calcolo 37 (4), 181-205, 2000 | 31 | 2000 |

An unfitted finite-element method for elliptic and parabolic interface problems RK Sinha, B Deka IMA journal of numerical analysis 27 (3), 529-549, 2007 | 28 | 2007 |

On the convergence of finite element method for second order elliptic interface problems RK Sinha, B Deka Numerical functional analysis and optimization 27 (1), 99-115, 2006 | 27 | 2006 |

A priori error estimates in the finite element method for nonself-adjoint elliptic and parabolic interface problems RK Sinha, B Deka Calcolo 43, 253-277, 2006 | 26 | 2006 |

Error estimates for finite volume element methods for convection–diffusion–reaction equations RK Sinha, J Geiser Applied numerical mathematics 57 (1), 59-72, 2007 | 23 | 2007 |

A posteriori error analysis of two-step backward differentiation formula finite element approximation for parabolic interface problems J Sen Gupta, RK Sinha, GMM Reddy, J Jain Journal of Scientific Computing 69, 406-429, 2016 | 21 | 2016 |

New interpolation error estimates and *a posteriori* error analysis for linear parabolic interface problemsJ Sen Gupta, RK Sinha, GMM Reddy, J Jain Numerical Methods for Partial Differential Equations 33 (2), 570-598, 2017 | 18 | 2017 |

Finite element approximations with quadrature for second‐order hyperbolic equations RK Sinha Numerical Methods for Partial Differential Equations: An International …, 2002 | 18 | 2002 |

Ritz–Volterra reconstructions and *a posteriori* error analysis of finite element method for parabolic integro-differential equationsGMM Reddy, RK Sinha IMA Journal of Numerical Analysis 35 (1), 341-371, 2015 | 17 | 2015 |

*A Posteriori* Error Analysis of the Crank–Nicolson Finite Element Method for Parabolic Integro-Differential EquationsGMM Reddy, RK Sinha, JA Cuminato Journal of Scientific Computing 79, 414-441, 2019 | 13 | 2019 |

The effect of spatial quadrature on finite element Galerkin approximations to hyperbolic integro-differential equations RK Sinha, AK Pani Numerical functional analysis and optimization 19 (9-10), 1129-1153, 1998 | 13 | 1998 |

Finite element method for parabolic optimal control problems with a bilinear state equation P Shakya, RK Sinha Journal of Computational and Applied Mathematics 367, 112431, 2020 | 11 | 2020 |

and Norms Error Estimates in Finite Element Method for Linear Parabolic Interface Problems B Deka, RK Sinha Numerical functional analysis and optimization 32 (3), 267-285, 2011 | 11 | 2011 |

Finite element methods for second order linear hyperbolic interface problems B Deka, RK Sinha Applied Mathematics and Computation 218 (22), 10922-10933, 2012 | 10 | 2012 |

Superconvergence of H 1-Galerkin mixed finite element methods for parabolic problems M Tripathy, RK Sinha Applicable Analysis 88 (8), 1213-1231, 2009 | 10 | 2009 |