共 50 条
- [21] REMARK ON ESSENTIAL SPECTRUM OF SYMMETRIZABLE OPERATORS [J]. PROCEEDINGS OF THE JAPAN ACADEMY, 1971, 47 : 1015 - 1018
- [22] CLASS OF BIORTHOGONAL EXPANSIONS IN EXPONENTIAL FUNCTIONS [J]. MATHEMATICS OF THE USSR-IZVESTIYA, 1977, 11 (02): : 375 - 395
- [26] BIORTHOGONAL EXPANSIONS IN EIGENFUNCTIONS .1. [J]. DIFFERENTIAL EQUATIONS, 1987, 23 (10) : 1208 - 1215
- [27] MULTIPLIERS AND UNCONDITIONAL CONVERGENCE OF BIORTHOGONAL EXPANSIONS [J]. NOTICES OF THE AMERICAN MATHEMATICAL SOCIETY, 1970, 17 (02): : 437 - &
- [28] BIORTHOGONAL EXPANSIONS IN EIGENVALUES .2. [J]. DIFFERENTIAL EQUATIONS, 1987, 23 (11) : 1324 - 1330
- [29] The convergence rate of biorthogonal expansions of functions [J]. DIFFERENTIAL EQUATIONS, 1996, 32 (12) : 1611 - 1622