• Solving extended assignment problem using stochastic DEA approach 

  Agarwal, Shivi; Mathur, Trilok (IEEE, 2025-04)

  The assignment model is a particular application of linear programming problems where tasks are assigned to agents with the goal of either maximization of profit or minimization of cost (in terms of both money and time) ...
• Fuzzy DEA model with exogenously fixed variables for ranking of renewable energy sources 

  Agarwal, Shivi; Mathur, Trilok (Springer, 2025-09)

  As the global population grows, so does the demand for energy. India, with its fast growth, industrialization, and urbanization, is struggling to meet energy needs using traditional sources. To tackle energy shortages, ...
• An optimal criteria selection in efficiency assessment through integration of dea with rough set theory 

  Agarwal, Shivi; Mathur, Trilok (Springer, 2025-09)

  Data Envelopment Analysis (DEA) is a prominent nonparametric technique used to assess the efficiency of decision-making units (DMUs) by using multi criteria. However, traditional DEA models can be significantly impacted ...
• Analyzing unemployment dynamics: a fractional-order mathematical model 

  Mathur, Trilok (Wiley, 2025-03)

  The persistent rise in unemployment rates poses a significant threat to global economic stability. Addressing this challenge effectively requires a deeper understanding of workforce dynamics, particularly through the ...
• Advancements of solar energy research in the context of SDG-7 attainment: a bibliometric analysis using spar-4-slr protocol 

  Agarwal, Shivi; Mathur, Trilok (IEEE, 2025-05)

  Renewable energy sources, free of environmental risks, are vital for achieving net-zero CO2 emissions and addressing climate change to meet Sustainable Development Goals. This study explores the evolution of solar energy ...
• Short-term wind speed prediction with adaptive signal processing based hybrid statistical models 

  Pasari, Sumanta (Springer, 2025-03)

  The inherent nonlinearity, intermittency, and chaotic nature of wind speed make accurate forecasting challenging. Traditional approaches like standalone time series models and frequency domain analysis struggle to capture ...
• Earthquake cycle progression in major city regions of Taiwan through nowcasting technique 

  Pasari, Sumanta (Springer, 2025-05)

  The complex tectonic framework of Taiwan makes it susceptible to devastating earthquakes that originate on both mapped faults, and at times, on unmapped faults. The unmapped faults especially highlight the limitation of ...
• Analysis of the L1 scheme for a time fractional parabolic–elliptic problem involving weak singularity 

  Santra, Sudarshan (Wiley, 2020-09)

  A time fractional initial boundary value problem of mixed parabolic–elliptic type is considered. The domain of such problem is divided into two subdomains. A reaction–diffusion parabolic problem is considered on the first ...
• Numerical analysis of volterra integro-differential equations with caputo fractional derivative 

  Santra, Sudarshan (Springer, 2021-07)

  This article deals with a fully discretized numerical scheme for solving fractional order Volterra integro-differential equations involving Caputo fractional derivative. Such problem exhibits a mild singularity at the ...
• A novel finite difference technique with error estimate for time fractional partial integro-differential equation of Volterra type 

  Santra, Sudarshan (Elsevier, 2022-01)

  The main purpose of this work is to study the numerical solution of a time fractional partial integro-differential equation of Volterra type, where the time derivative is defined in Caputo sense. Our method is a combination ...
• Adomian decomposition and homotopy perturbation method for the solution of time fractional partial integro-differential equations 

  Santra, Sudarshan (Springer, 2021-07)

  This article deals with two different methods to solve a time fractional partial integro-differential equation. The fractional derivatives are defined here in Caputo sense. The model problem is solved using the Adomian ...
• A novel approach for solving multi-term time fractional Volterra–Fredholm partial integro-differential equations 

  Santra, Sudarshan (Springer, 2021-12)

  This article deals with an efficient numerical technique to solve a class of multi-term time fractional Volterra–Fredholm partial integro-differential equations of first kind. The fractional derivatives are defined in ...
• Numerical treatment of multi-term time fractional nonlinear KdV equations with weakly singular solutions 

  Santra, Sudarshan (Taylor & Francis, 2021-12)

  The main aim of this work is to construct an efficient recursive numerical technique for solving multi-term time fractional nonlinear KdV equation. The fractional derivatives are defined in Caputo sense. A modified Laplace ...
• Analysis of a finite difference method based on L1 discretization for solving multi-term fractional differential equation involving weak singularity 

  Santra, Sudarshan (Wiley, 2022-03)

  In this article, we consider a multi-term fractional initial value problem which has a weak singularity at the initial time . The fractional derivatives are defined in Caputo sense. Due to such singular behavior, an initial ...
• An efficient computational approach for the solution of time-space fractional diffusion equation 

  Santra, Sudarshan (Taylor & Francis, 2022-06)

  The main aim of this paper is to construct an efficient recursive algorithm to solve a time-space fractional Poisson’s equation which can be treated as a time-space fractional diffusion equation in two dimensions. The ...
• Numerical simulation and convergence analysis for Riemann-Liouville fractional initial value problem involving weak singularity 

  Santra, Sudarshan (Inder Science, 2023-11)

  The present work considers a Riemann-Liouville fractional initial value problem (IVP) associated with homogeneous initial condition involving a weak singularity near the origin. Due to presence of initial singularity, an ...
• Numerical simulation for time fractional integro partial differential equations arising in viscoelastic dynamical system 

  Santra, Sudarshan (CRC Press, 2023)

  The study on fractional calculus gains more attention of many researchers in recent times, due to its immense applicability to define various models, such as viscoelastic damped structure [1], the model due to radiative ...
• Higher order approximations for fractional order integro-parabolic partial differential equations on an adaptive mesh with error analysis 

  Santra, Sudarshan (Elsevier, 2023-11)

  This work deals with a higher order numerical approximation for analyzing a class of multi-term time fractional partial integro-differential equations involving Volterra integral operators. The solutions to these problems ...
• Analytical and numerical solution for the time fractional black-scholes model under jump-diffusion 

  Santra, Sudarshan (Springer, 2023-04)

  In this work, we study the numerical solution for time fractional Black-Scholes model under jump-diffusion involving a Caputo differential operator. For simplicity of the analysis, the model problem is converted into a ...
• Simultaneous space–time Hermite wavelet method for time-fractional nonlinear weakly singular integro-partial differential equations 

  Santra, Sudarshan (Elsevier, 2025-01)

  An innovative simultaneous space–time Hermite wavelet method has been developed to solve weakly singular fractional-order nonlinear integro-partial differential equations in one and two dimensions with a focus whose solutions ...

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