Ignat'eva A V

Publications in Math-Net.Ru

1. The existence in the $L_p$ metric of the best approximation of functions by sums of a finite number of plane waves of given directions
   
   Dokl. Akad. Nauk SSSR, 176:6 (1967),  1225–1228
2. A special representation of functions of several variables
   
   Uch. Zap. Mosk. Gos. Univ., 186 (1959),  235–244
3. The representation of functions of several variables by means of plane waves and the solution of Cauchy's problem for hyperbolic syste
   
   Izv. Vyssh. Uchebn. Zaved. Mat., 1958, no. 4,  100–112