### On similarity of Volterra operators in Sobolev spaces

G. S. Dudʹeva

Methods Funct. Anal. Topology 5 (1999), no. 2, 1-11

### Direct approximation problems for semi-groups in Hilbert space

Ya. I. Grushka

Methods Funct. Anal. Topology 5 (1999), no. 2, 12-21

### Complete reducibility of representations of the algebra $U'_{q}(so_{3})$

N. Z. Iorgov

Methods Funct. Anal. Topology 5 (1999), no. 2, 22-28

### Anti-Wick symbols on infinite tensor product spaces

Methods Funct. Anal. Topology 5 (1999), no. 2, 29-39

### On inverse problem in the Lax-Phillips scattering theory for a class of second-order operator-differential equations

S. Kuzhel

Methods Funct. Anal. Topology 5 (1999), no. 2, 40-43

### Direct and inverse scattering problems for multidimensional system of first-order partial differential equations

Methods Funct. Anal. Topology 5 (1999), no. 2, 44-82

### Representations of Wick CCR algebra

D. P. Proskurin

Methods Funct. Anal. Topology 5 (1999), no. 2, 83-85

### Euclidean Gibbs states for quantum continuous systems via cluster expansion. II. Bose and Fermi statistics

Alexei L. Rebenko

Methods Funct. Anal. Topology 5 (1999), no. 2, 86-100