Some problems of the theory of superfluid Fermi liquid with spin-triplet pairing in magnetic field

General explicit expressions are obtained for abnormal and normal distribution functions (DF) of quasiparticles in arbitrary nonunitary phases of the superfluid neutral paramagnetic Fermi liquid with spin-triplet pairing (spin of a pair is s = 1, orbital moment l of a pair is any odd number) in a static and uniform magnetic field. The generalized Fermi liquid approach is used with taking into account of the spin-exchange Fermi liquid interaction but without any concrete definition of the superfluid energy functional (EF). The results are valid at any temperatures 0c (Tc is the normal-superfluid transition temperature). The general formulas for the DF are applicable for description of different nonunitary phases of superfluid Fermi liquid of the 3He type in a strong magnetic field with the use of the explicit form of the EF. In particular, a set of coupled equations for order parameter and effective magnetic field and nonlinear magnetic susceptibility are obtained on the basis of EF which is quadratic in DF for 3He-A1, 3He-A2 and nonunitary 2D phase of 3He in a strong magnetic field at temperatures 0c.