Babayev Melik-Bakhish Ali Ikram oglu

Publications in Math-Net.Ru

1. Approximation to the Sobolev classes $W_q^r$ of functions of several variables by bilinear forms in $L_p$ for $2\le q\le p\le\infty$
   
   Mat. Zametki, 62:1 (1997),  18–34
2. On the order of approximation of Sobolev class $W_q^r$ by bilinear forms in $L_p$ for $1\le q\le2\le p\le\infty$
   
   Trudy Mat. Inst. Steklov., 198 (1992),  21–40
3. On the degree of approximation of the Sobolev class $W_q^r$ by bilinear forms in $L_p$ for $1\leqslant q\leqslant p\leqslant 2$
   
   Mat. Sb., 182:1 (1991),  122–129
4. Approximation of Sobolev classes of functions by sums of products of functions of fewer variables
   
   Mat. Zametki, 48:6 (1990),  10–21
5. Best approximation by bilinear forms
   
   Mat. Zametki, 46:2 (1989),  21–33
6. The approximation of sobolev classes of functions by sums of products of functions of fewer variables
   
   Trudy Mat. Inst. Steklov., 180 (1987),  30–32
7. Best approximation by functions of fewer variables
   
   Dokl. Akad. Nauk SSSR, 279:2 (1984),  273–277
8. Extremal properties and two-sided estimates in approximation by sums of functions of lesser number of variables
   
   Mat. Zametki, 36:5 (1984),  647–659
9. Extremal elements and the value of the best approximation of a monotone function on $R^n$ by sums of functions of fewer variables
   
   Dokl. Akad. Nauk SSSR, 265:1 (1982),  11–13
10. On obtaining close estimates in the approximation of functions of many variables by sums of functions of a fewer number of variables
    
    Mat. Zametki, 12:1 (1972),  105–114
11. On estimates of best approximations of a function of several variables by sums of two functions of a smaller number of variables
    
    Dokl. Akad. Nauk SSSR, 201:5 (1971),  1037–1040
12. Methods for finding functions deviating least from functions of several variables
    
    Dokl. Akad. Nauk SSSR, 197:4 (1971),  766–769
13. The approximation of polynomials of two variables by functions of the form $\varphi(x)+\psi(y)$
    
    Dokl. Akad. Nauk SSSR, 193:5 (1970),  967–969