P ∞ algebra of symmetries of the kadomtsev-petviashvili equation, free fermions, and 2-cocycles in the lie algebra of pseudo-differential operatorsalgebra of symmetries of the kadomtsev-petviashvili equation, free fermions, and 2-cocycles in the lie algebra of pseudo-differential operators A. Yu. OrlovP. Winternitz OriginalPaper Pages: 1393 - 1417
On the integrability of hyperbolic systems of riccati-type equations A. A. BormisovE. S. GudkovaF. Kh. Mukminov OriginalPaper Pages: 1418 - 1430
Noncommutative itô and stratonovich noise and stochastic evolutionsand stratonovich noise and stochastic evolutions J. Gough OriginalPaper Pages: 1431 - 1437
On some properties of solutions to aP-type nonlinear equation V. V. Tsegel’nik OriginalPaper Pages: 1439 - 1441
Two-loop euler-heisenberg lagrangian in dimensional regularization D. FliegnerM. ReuterC. Schubert OriginalPaper Pages: 1442 - 1451
Phenomenology of a multicomponent relativistic superfluid in many-dimensional space Yu. V. Vlasov OriginalPaper Pages: 1452 - 1461
On the theory of the B-phase for a fermi superfluid with triplet coupling M. Yu. KovalevskiiA. A. Rozhkov OriginalPaper Pages: 1462 - 1477
Absorption spectrum of a one-dimensional chain with frenkel’s excition under diagonal disorder represented by hyperbolic defects G. G. Kozlov OriginalPaper Pages: 1478 - 1483
Two-magnon states in the one-dimensional isotropic heisenberg model with free boundary conditions S. N. Martynov OriginalPaper Pages: 1484 - 1490
“Asymptotically non-minkowskian” bubbles with gravitational repulsion A. T. BarnaveliM. Ya. Gogberashvili OriginalPaper Pages: 1491 - 1496
