Estimation of the best approximation of a summable function on the real axis by entire functions of finite degree. (English. Russian original) Zbl 0224.41004
Sov. Math., Dokl. 11, 1332-1336 (1970); translation from Dokl. Akad. Nauk SSSR 194, 1013-1016 (1970).
MSC:
41A50 | Best approximation, Chebyshev systems |
41A25 | Rate of convergence, degree of approximation |
30D15 | Special classes of entire functions of one complex variable and growth estimates |