Differential invariants and equivalence of ODEs $y''=a^3(x,y)y'^3+a^2(x,y)y'^2+a^1(x,y)y'+a^0(x,y)$

Valeriy A. Yumaguzhin

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arXiv · 2508.21439

Differential invariants and equivalence of ODEs $y''=a^3(x,y)y'^3+a^2(x,y)y'^2+a^1(x,y)y'+a^0(x,y)$

Valeriy A. Yumaguzhin

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Abstract

This paper is devoted to ordinary differential equations of the form $$y''=a^3(x,y)y'^3+a^2(x,y)y'^2+a^1(x,y)y'+a^0(x,y)$$ The algebra of all differential invariants of point transformations is constructed for these equations in general position and the equivalence problem is solved for them.

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BibTeX RIS

Valeriy A. Yumaguzhin. 2025-08-29. Differential invariants and equivalence of ODEs $y''=a^3(x,y)y'^3+a^2(x,y)y'^2+a^1(x,y)y'+a^0(x,y)$. https://arxiv.org/abs/2508.21439

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