共 50 条
- [2] CERTAIN DIFFERENTIAL-OPERATORS FOR MEROMORPHIC FUNCTIONS HOUSTON JOURNAL OF MATHEMATICS, 1991, 17 (02): : 279 - 284
- [6] ON THE BESSEL PROPERTY OF THE SYSTEMS OF EIGENFUNCTIONS OF DIFFERENTIAL-OPERATORS DOKLADY AKADEMII NAUK SSSR, 1991, 318 (01): : 16 - 20
- [8] EMBEDDING-THEOREMS AND THE SPECTRA OF CERTAIN DIFFERENTIAL-OPERATORS PROCEEDINGS OF THE ROYAL SOCIETY OF LONDON SERIES A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES, 1991, 434 (1892): : 643 - 656
- [10] AN INVARIANT PROPERTY FOR THE SPECTRUM OF TRACES OF SOLUTIONS OF DIFFERENTIAL-OPERATORS COMPTES RENDUS DE L ACADEMIE DES SCIENCES SERIE I-MATHEMATIQUE, 1982, 294 (22): : 723 - 725