Geodesic

Sommaire du Fascicule no. 1

Description of solutions with the~uniton number $3$ in the~case of one eigenvalue: Counterexample to the~dimension conjecture
p. 3-16
Solution space monodromy of a~special double confluent Heun equation and its applications
p. 17-36
Some exact solutions of the~Volterra lattice
p. 37-53
Blowup solutions of the~nonlinear Thomas equation
p. 54-64
Description of stable chemical elements by an~$aF$ diagram and mean square fluctuations
p. 65-83
Approximate formula for the~total cross section for a~moderately small eikonal function
p. 84-104
Full analytic spectrum of generalized Jaynes--Cummings Hamiltonians
p. 105-117
Nonlinear evolutionary Schr\"odinger equation in a~two-dimensional domain
p. 118-125
A~$p$-adic generalized Gibbs measure for the~ Ising model on a~Cayley tree
p. 126-136
Effect of phonons on the~magnetic characteristics of metals at finite temperatures
p. 137-148

Sommaire du Fascicule no. 2

To the~memory of Sergei Yur'evich Slavyanov
p. 151-152
Bethe vectors for orthogonal integrable models
p. 153-174
Relativistic interacting integrable elliptic tops
p. 175-192
Quasiexact theory of three-dimensional optical self-focusing
p. 193-197
Revealing nonperturbative effects in the~SYK model
p. 198-221
Partition functions of $\mathcal{N}=(2,2)$ supersymmetric sigma models and special geometry on the~moduli spaces of Calabi--Yau manifolds
p. 222-231
Group analysis of the~one-dimensional Boltzmann equation: IV.~Complete group classification in the~general case
p. 232-265
Coset space construction for the~conformal group: Spontaneously
p. 266-279
Magnetic susceptibility of a~diluted Ising magnet
p. 280-290
Quantum entanglement in the~nonrelativistic collision between two
p. 291-309
Erratumn to: K.~Sayevand, K.~Pichaghchi ``Traces and supertraces on symplectic reflection algebras'' (Teoret. Mat. Fiz., 2019. V.~198, \No~2. P.~249--255)

Sommaire du Fascicule no. 3

On eightieth anniversary of Andrei Alekseevich Slavnov
p. 313-314
Spaces of type $S$ and deformation quantization
p. 315-336
Matrix extension of the~Manakov--Santini system and an~integrable chiral model on an~Einstein--Weyl background
p. 337-346
Physical parameters of solitary wave packets in shallow basins under ice cover
p. 347-360
Bilinearization and soliton solutions of a~supersymmetric multicomponent coupled dispersionless integrable system
p. 361-370
Strongly coupled B-type universal characters and hierarchies
p. 371-381
Uniform asymptotic solution in the~form of an~Airy function for semiclassical bound states in one-dimensional and radially symmetric problems
p. 382-414
Solutions of the~discrete nonlinear Schr\"odinger equation with a~trap
p. 415-423
Wormholes in Jackiw--Teitelboim gravity
p. 424-439
Gravitational frequency shift of light signals in a~pulsating dark matter halo
p. 440-445
Bell polynomials in the~Mathematica system and asymptotic solutions
p. 446-456