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On strengthening inequalities of Jackson typeV. G. Doronin; A. A. Ligun · Ukrainian Mathematical Journal · 1992
On Jackson-Type Inequalities for Functions Defined on a SphereV. F. Babenko; V. G. Doronin; A. A. Ligun; A. A. Shumeiko · Ukrainian Mathematical Journal · 2005
Exact constant in the Jackson inequality in the space L2V. G. Doronin; A. A. Ligun · Ukrainian Mathematical Journal · 1994
Exact constants in inequalities of the jackson type for quadrature formulasV. G. Doronin; A. A. Ligun · 2000
Precise values of the best one-sided approximations by splinesV. G. Doronin; A. A. Ligun · Mathematical Notes · 1976
The best one-sided approximation of the classes WrHωV. G. Doronin; A. A. Ligun · Mathematical Notes · 1977
The best one-sided approximation of one class of functions by anotherV. G. Doronin; A. A. Ligun · Mathematical Notes · 1973
On a relationship for Bernoulli numbersV. N. Lyakhovitskii · Mathematical Notes · 1967
Legendre transformation of convex functionsV. S. Vladimirov · Mathematical Notes · 1967
Nonoscillatory second-order optimal systemsV. G. Boltyanskii · Mathematical Notes · 1967
Radius of univalence of holomorphic functionsV. I. Gavrilov · Mathematical Notes · 1970
Endomorphically closed quasigroupsA. D. Bol'bot; Yu. N. Golubev · Mathematical Notes · 1970
A ring of quotientsL. Sh. Ioffe · Mathematical Notes · 1970
Consecutive residues and nonresidues of polynomialsL. E. Mazur · Mathematical Notes · 1970
A class of nuclear spacesM. M. Dragilev; V. P. Kondakov · Mathematical Notes · 1970