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arXiv · 2005.07978

Numerical solution of linear differential equations with discontinuous coefficients and Henstock integral

Sergey Lukomskii·Dimitry Lukomskii
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Abstract

In this article we consider the problem of approximative solution of linear differential equations $y'+p(x)y=q(x)$ with discontinuous coefficients $p$ and $q$. We assume that coefficients of such equation are Henstock integrable functions. To find the approximative solution we change the original Cauchy problem to another problem with piecewise-constant coefficients. The sharp solution of this new problems is the approximative solution of the original Cauchy problem. We find the degree approximation in terms of modulus of continuity $\omega_\delta (P),\ \omega_\delta (Q)$, where $P$ and $Q$ are $f$-primitive for coefficients $p$ and $q$.

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Sergey Lukomskii, Dimitry Lukomskii. 2020-05-16. Numerical solution of linear differential equations with discontinuous coefficients and Henstock integral. https://arxiv.org/abs/2005.07978

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