共 50 条
- [2] ON THEORY OF HYPOELLIPTIC AND PARTIALLY HYPOELLIPTIC OPERATORS DOKLADY AKADEMII NAUK SSSR, 1961, 140 (05): : 1015 - &
- [3] ON CONDITIONALLY HYPOELLIPTIC PROPERTIES OF PARTIALLY HYPOELLIPTIC OPERATORS PROCEEDINGS OF THE JAPAN ACADEMY, 1963, 39 (02): : 114 - &
- [5] EIGENFUNCTION EXPANSIONS FOR SYMMETRIC OPERATORS JOURNAL OF THE LONDON MATHEMATICAL SOCIETY-SECOND SERIES, 1973, 7 (AUG): : 67 - 75
- [6] CLASS OF PARTIALLY HYPOELLIPTIC OPERATORS JOURNAL DE MATHEMATIQUES PURES ET APPLIQUEES, 1976, 55 (02): : 131 - 171
- [7] NOTE ON PARTIALLY HYPOELLIPTIC OPERATORS PROCEEDINGS OF THE JAPAN ACADEMY, 1975, 51 (01): : 20 - 24
- [8] EIGENFUNCTION EXPANSIONS AND SIMILARITY FOR NONSELFADJOINT OPERATORS NOTICES OF THE AMERICAN MATHEMATICAL SOCIETY, 1969, 16 (01): : 269 - &