Classification of Second Order Linear Ordinary Differential Equations with Rational Coefficients

In the present work we study linear ordinary differential equations of second order with rational coefficients. Such equations are very important in complex analysis (for example they include the so-called Fuchs equations, which appear in 21 Hilbert’s problem) and in the theory of special functions...

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Bibliographic Details
Published in:Lobachevskii journal of mathematics 2019, Vol.40 (1), p.14-23
Main Author: Bibikov, P. V.
Format: Article
Language:English
Subjects:
Algebra
Analysis
Bessel functions
Differential equations
Geometry
Hypergeometric functions
Mathematical analysis
Mathematical Logic and Foundations
Mathematics
Mathematics and Statistics
Ordinary differential equations
Probability Theory and Stochastic Processes
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Summary:In the present work we study linear ordinary differential equations of second order with rational coefficients. Such equations are very important in complex analysis (for example they include the so-called Fuchs equations, which appear in 21 Hilbert’s problem) and in the theory of special functions (Bessel function, Gauss hypergeometric function, etc.). We compute the symmetry group of this class of equations, and it appears that this group includes non-rational (and even nonalgebraic) transformations. Also, the field of differential invariants is described and the effective equivalence criterion is obtained. Finally, we present some examples.
ISSN:1995-0802
1818-9962
DOI:10.1134/S1995080219010037