Preprint

·2021 OPEN ACCESS

A New Implicit-Explicit Local Method to Capture Stiff Behavior with COVID-19 Outbreak Application

Hüseyin Tunç YTU , Murat Sarı YTU

arXiv (Cornell University)

Abstract

In this paper, a new implicit-explicit local method with an arbitrary order is produced for stiff initial value problems. Here, a general method for one-step time integrations has been created, considering a direction free approach for integrations leading to a numerical method with parameter-based stability preservation. Adaptive procedures depending on the problem types for the current method are explained with the help of local error estimates to minimize the computational cost. Priority error analysis of the current method is made, and order conditions are presented in terms of direction parameters. Stability analysis of the method is performed for both scalar equations and systems of differential equations. The currently produced parameter-based method has been proven to provide A-stability, for 0.5

Keywords

Parameterized complexity Stability (learning theory) Backward differentiation formula Scalar (mathematics) Nonlinear system Stiff equation Applied mathematics Numerical analysis Explicit and implicit methods Initial value problem Differential equation Mathematics Current (fluid) Computer science Algorithm Mathematical analysis Ordinary differential equation Differential algebraic equation Physics Geometry

Subject Areas

Numerical methods for differential equations ·Numerical Analysis ·Physical Sciences
Fractional Differential Equations Solutions ·Modeling and Simulation ·Physical Sciences
Computational Fluid Dynamics and Aerodynamics ·Computational Mechanics ·Physical Sciences

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