共 50 条
- [29] Inclusion of solutions of initial value problems for hyperbolic equations [J]. ZEITSCHRIFT FUR ANGEWANDTE MATHEMATIK UND MECHANIK, 1996, 76 : 443 - 444
- [30] INITIAL-VALUE PROBLEMS FOR SOME INFINITE SYSTEMS OF ORDINARY DIFFERENTIAL EQUATIONS - PRELIMINARY REPORT [J]. NOTICES OF THE AMERICAN MATHEMATICAL SOCIETY, 1973, 20 (07): : A665 - A665