Contents

Theoretical and Mathematical Physics


Vol. 223, No. 1, 2025


Research Articles

Linear representations of the Lie algebra of the diffeomorphism group in \(\mathbb{R}^d\)

M. I. Gozman p. 525  abstract

\(\Omega\)-Spectrum in topological phases

E. A. Teplyakov p. 548  abstract

Asymptotic solution convergence to a traveling wave in the Kolmogorov–Petrovskii–Piskunov equation

L. A. Kalyakin p. 556  abstract

On alleged solutions of the cubically nonlinear Schrödinger equation

H. W. Schürmann, and V. S. Serov p. 572  abstract

Rational solutions of nonautonomous quadrilateral equations by the bilinearization of Bäcklund transformation systems

Danda Zhang, Liya Zhu, and Yingying Sun p. 576  abstract

Equivalence of two constructions for \(\widehat{sl}_2\)-integrable hierarchies

Panpan Dang, Yajuan Li, Yuanyuan Zhang, and Jipeng Cheng p. 597  abstract

Integration of the generalized Camassa–Holm equation in the class of periodic functions

B. A. Babajanov, and D. O. Atajonov p. 624  abstract

Evolution of spherical perturbations in the cosmological environment of the Higgs scalar field and an ideal scalar charged fluid

Yu. G. Ignat’ev p. 636  abstract

On the Rayleigh–Schrödinger coefficients for the eigenvalues of regular perturbations of an anharmonic oscillator

Kh. K. Ishkin p. 650  abstract

Explicit Bargmann-type isomorphism between Berezin and Smolyanov representations of bosonic Fock spaces

N. N. Shamarov, and M. V. Shamolin p. 665  abstract

Feynman integral in QFT and white noise on a compactified version of space–time with a Lie group structure

J. Wawrzycki p. 671  abstract