output
20192023
most citedSimple smoothness indicator WENO-Z scheme for hyperbolic conservation laws

37 citations

7 papers

math.NA2023★ 3 cited

Exponential approximation space reconstruction WENO scheme for dispersive PDEs

Lavanya V Salian, Samala Rathan

In this work, we construct a fifth-order weighted essentially non-oscillatory (WENO) scheme with exponential approximation space for solving dispersive equations. A conservative th…

math.NA2023★ 7 cited

Numerical schemes for a class of nonlocal conservation laws: a general approach

Jan Friedrich, Sanjibanee Sudha, Samala Rathan

In this work we present a rather general approach to approximate the solutions of nonlocal conservation laws. In a first step, we approximate the nonlocal term with an appropriate…

math.NA2023★ 4 cited

Adaptive IQ and IMQ-RBFs for solving Initial Value Problems: Adam-Bashforth and Adam-Moulton methods

Samala Rathan, Deepit Shah, T. Hemanth Kumar +1

In this paper, our objective is primarily to use adaptive inverse-quadratic (IQ) and inverse-multi-quadratic (IMQ) radial basis function (RBF) interpolation techniques to develop a…

math.NA2022★ 10 cited

A sixth-order central WENO scheme for nonlinear degenerate parabolic equations

Samala Rathan, Jiaxi Gu

In this paper we develop a new sixth-order finite difference central weighted essentially non-oscillatory (WENO) scheme with Z-type nonlinear weights for nonlinear degenerate parab…

cs.CR2020★ 2 cited

Towards Systematically Deriving Defence Mechanisms from Functional Requirements of Cyber-Physical Systems

Cheah Huei Yoong, Venkata Reddy Palleti, Arlindo Silva +1

The threats faced by cyber-physical systems (CPSs) in critical infrastructure have motivated the development of different attack detection mechanisms, such as those that monitor fo…

math.NA2019★ 7 cited

Arc length based WENO scheme for Hamilton-Jacobi Equations

Samala Rathan, Biswarup Biswas

In this article, novel smoothness indicators are presented for calculating the nonlinear weights of weighted essentially non-oscillatory scheme to approximate the viscosity numeric…

math.NA2019★ 37 cited

Simple smoothness indicator WENO-Z scheme for hyperbolic conservation laws

Samala Rathan, G. Naga Raju, Ashlesha A. Bhise

The advantage of WENO-JS5 scheme [ J. Comput. Phys. 1996] over the WENO-LOC scheme [J. Comput. Phys.1994] is that the WENO-LOC nonlinear weights do not achieve the desired order of…