Efimov Andrei Vladimirovich

Publications in Math-Net.Ru

1. An analog of Rudin's theorem for continuous radial positive definite functions of several variables
   
   Trudy Inst. Mat. i Mekh. UrO RAN, 18:4 (2012),  172–179
2. A version of the Turan problem for positive definite functions of several variables
   
   Trudy Inst. Mat. i Mekh. UrO RAN, 17:3 (2011),  136–154