Vakarchuk Ivan Aleksandrovich

Publications in Math-Net.Ru

1. One-particle density matrix of liquid $^4\text{He}$
   
   TMF, 154:1 (2008),  9–30
2. Density matrices of superfluid helium-4. II
   
   TMF, 82:3 (1990),  438–449
3. Density matrices of superfluid helium-4. I
   
   TMF, 80:3 (1989),  439–451
4. Energy spectrum of magnon excitations in amorphous bodies with allowance for the spin-phonon interaction
   
   TMF, 79:3 (1989),  446–459
5. Phonon excitations in multicomponent amorphous solids
   
   TMF, 75:2 (1988),  306–315
6. Free energy of a many-boson system at low temperatures
   
   TMF, 75:1 (1988),  101–113
7. On the theory of multicomponent disordered magnets
   
   TMF, 72:3 (1987),  462–476
8. Bose condensate in liquid $\textrm{He}^4$
   
   TMF, 65:2 (1985),  285–295
9. On the microscopic theory of quantum binary solutions
   
   TMF, 59:3 (1984),  423–431
10. Theory of liquid magnets
    
    TMF, 58:3 (1984),  445–460
11. Approximate renormalization group transformation in the theory of phase transitions II. Equation for fixed points and linear operator of the renormalization group
    
    TMF, 51:1 (1982),  102–110
12. Approximate renormalization group transformation in the theory of phase transitions. I. Differential equation of the renormalization group
    
    TMF, 50:2 (1982),  313–320
13. Method of functional integration in the theory of spin systems
    
    TMF, 49:2 (1981),  234–247
14. Microscopic theory of the energy spectrum of liquid HeII
    
    TMF, 42:1 (1980),  112–123
15. Self-consistent description of long-range and short-range correlations in the theory of liquid  $\operatorname{He}^4$. II
    
    TMF, 41:1 (1979),  77–88
16. Self-consistent description of long-range and short-range correlations in the theory of liquid $\operatorname{He}^4$. I
    
    TMF, 40:1 (1979),  100–111
17. Microscopic theory of the $\lambda$-transition in liquid $\mathrm{He}^4$. I
    
    TMF, 36:1 (1978),  122–135
18. Representation of coherent states in the theory of many-boson systems
    
    TMF, 35:1 (1978),  76–88
19. Irreducible cluster expansion for the logarithm of the $s$-particle density matrix of a many-boson system
    
    TMF, 32:2 (1977),  247–261
20. Density matrices of a many-Boson system at low temperatures
    
    TMF, 23:2 (1975),  260–272
21. Sevaration of “normal” and “superfluid” mctions in the Schrödinger equation by means of the method of displacements and collective variables
    
    TMF, 18:1 (1974),  90–107