On the theory of admissibility of pairs of function spaces. (English. Russian original) Zbl 0265.34073
Sov. Math., Dokl. 13, 1108-1111 (1972); translation from Dokl. Akad. Nauk SSSR 205, 1281-1283 (1972).
MSC:
34G99 | Differential equations in abstract spaces |
42A75 | Classical almost periodic functions, mean periodic functions |
47E05 | General theory of ordinary differential operators |