共 50 条
- [2] 2-TERM LINEAR-DIFFERENTIAL OPERATORS - PRELIMINARY REPORT NOTICES OF THE AMERICAN MATHEMATICAL SOCIETY, 1975, 22 (02): : A353 - A354
- [4] ON THE EQUICONVERGENCE OF ORTHONORMAL AND BIORTHONORMAL SERIES CORRESPONDING TO THE EIGENFUNCTIONS OF LINEAR-DIFFERENTIAL OPERATORS COMPTES RENDUS DE L ACADEMIE DES SCIENCES SERIE I-MATHEMATIQUE, 1984, 299 (07): : 217 - 219
- [6] WEAK SYMMETRY OF LINEAR-DIFFERENTIAL OPERATORS JOURNAL OF PHYSICS A-MATHEMATICAL AND GENERAL, 1986, 19 (11): : 2019 - 2031
- [9] COLUMN DIAGONALLY DOMINANT LINEAR-DIFFERENTIAL SYSTEMS - PRELIMINARY REPORT NOTICES OF THE AMERICAN MATHEMATICAL SOCIETY, 1974, 21 (02): : A308 - A308