2 papers
gr-qc2025
The -deformed Einstein field equations with -dependent effective cosmological constant
O. P. Mykhailiv, Yu. A. Mishchenko, A. M. Gavrilik
In this paper, we derive the -deformed Einstein field equations from the generalized thermodynamic functions of the -deformed analog of Bose gas model, applying the (adapte…
cond-mat.stat-mech2025
Scaling behavior and phases of nonlinear sigma model on real Stiefel manifolds near two dimensions
A. M. Gavrilik, A. V. Nazarenko
For a quasi-two-dimensional nonlinear sigma model on the real Stiefel manifolds with a generalized (anisotropic) metric, the equations of a two-charge renormalization group (RG) fo…