共 50 条
- [1] ASYMPTOTIC REPRESENTATION OF SOLUTIONS OF LINEAR-SYSTEMS OF PARTIAL-DIFFERENTIAL EQUATIONS WITH SLOWLY VARYING COEFFICIENTS [J]. IZVESTIYA VYSSHIKH UCHEBNYKH ZAVEDENII MATEMATIKA, 1984, (06): : 46 - 53
- [4] DIFFERENTIAL-OPERATORS FOR SYSTEMS OF LINEAR PARTIAL-DIFFERENTIAL EQUATIONS [J]. ANNALI DI MATEMATICA PURA ED APPLICATA, 1992, 162 : 263 - 279
- [7] INTERNAL STUDY ON LINEAR-SYSTEMS OF PARTIAL DIFFERENTIAL EQUATIONS [J]. ANNALES DE L INSTITUT HENRI POINCARE SECTION A PHYSIQUE THEORIQUE, 1972, 17 (02): : 131 - &
- [9] IRRESOLUBILITY OF LINEAR PARTIAL-DIFFERENTIAL EQUATIONS [J]. MONATSHEFTE FUR MATHEMATIK, 1974, 78 (03): : 223 - 228