Tyurin K I

Publications in Math-Net.Ru

1. Extremal properties of eigenvalues of the Laplace operator on a ball
   
   Uspekhi Mat. Nauk, 46:3(279) (1991),  199–200
2. Extremal properties of simple eigenvalues of the Laplace operator with Dirichlet boundary conditions on a ball
   
   Vestnik Moskov. Univ. Ser. 1. Mat. Mekh., 1991, no. 4,  33–37