On conjugacy functions of second-order linear differential equations
To the definition of the global transformation in 2-dimensional linear spaces of continuous functions
On transformations of two homogeneous linear second order differential equations of a general and of Sturm forms
The Sturm comparison theorem for -conjugate numbers
Fundamental central dispersions of the phase function with the final oscillation
On a canonical two-dimensional space of continuous functions
On transformations of two linear second order differential equations
Associated linear differential equations to linear second order differential equations of Sturm, Jacobi and general form
On a fundamental central dispersion of the first kind and the Abel functional equation in strongly regular spaces of continuous functions
On two-dimensional linear spaces of continuous functions of the same character
To conjugacy functions of second order linear differential equations
A remark to the Floquet theorem for systems of linear differential equations
A remark on th-order linear functional equations with constant coefficients.
On some relations between curvature and metric tensors in Riemannian spaces
The paper generalizes results of and [Dokl. Akad. Nauk, Ross. Akad. Nauk 351, No. 3, 295-296 (1996; Zbl 0895.53038) and Sib. Mat. Zh. 39, No. 4, 1005-1012 (1998; Zbl 0913.53019)] on the existence and uniqueness of a Riemannian metric on a domain in given prescribed values for some of the components of the Riemann curvature tensor and initial values of the metric and its partial derivatives. The authors establish the construction (existence and uniqueness) of a metric tensor in a semigeodesic...
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