共 50 条
- [1] KOLMOGOROV WIDTHS OF CLASSES OF PERIODIC-FUNCTIONS OF ONE AND SEVERAL VARIABLES MATHEMATICS OF THE USSR-IZVESTIYA, 1990, 54 (02): : 435 - 448
- [2] APPROXIMATION OF PERIODIC-FUNCTIONS OF SEVERAL-VARIABLES BY TRIGONOMETRIC POLYNOMIALS, AND WIDTHS OF SOME CLASSES OF FUNCTIONS MATHEMATICS OF THE USSR-IZVESTIYA, 1985, 49 (05): : 285 - 322
- [3] THE APPROXIMATION OF PERIODIC-FUNCTIONS OF SEVERAL-VARIABLES BY FLOATING SYSTEM OF EXPONENTS AND THE TRIGONOMETRIC WIDTHS DOKLADY AKADEMII NAUK SSSR, 1985, 284 (06): : 1294 - 1297
- [5] ONESIDED APPROXIMATION OF PERIODIC-FUNCTIONS OF SEVERAL-VARIABLES DOKLADI NA BOLGARSKATA AKADEMIYA NA NAUKITE, 1982, 35 (12): : 1639 - 1642
- [6] APPROXIMATE RECOVERY OF PERIODIC-FUNCTIONS OF SEVERAL-VARIABLES MATHEMATICS OF THE USSR-SBORNIK, 1985, 128 (1-2): : 249 - 261
- [8] THE APPROXIMATE RESTORATION OF PERIODIC-FUNCTIONS OF SEVERAL-VARIABLES DOKLADY AKADEMII NAUK SSSR, 1985, 280 (06): : 1310 - 1313
- [10] Trigonometric and orthoprojection widths of classes of periodic functions of many variables Ukrainian Mathematical Journal, 2009, 61 : 1589 - 1609