output
20022026
most citedBlack hole mimicker hiding in the shadow: Optical properties of the -metric

145 citations

Showing math-phShow all

9 papers · 1 filter

math-ph2023★ 3 cited

Ground states and Gibbs measures of Ising model with competing interactions and an external field on a Cayley tree

M. M. Rahmatullaev, M. A. Rasulova, J. N Asqarov

We consider the Ising model with competing interactions and a nonzero external field on the Cayley tree of order two. We describe ground states and verify the Peierls condition for…

math-ph2022

Fixed points of an infinite dimensional operator related to Gibbs measures

U. R. Olimov, U. A. Rozikov

We describe fixed points of an infinite dimensional non-linear operator related to a hard core (HC) model with a countable set of spin values on the Cayley tree. This…

math-ph2022★ 2 cited

Gibbs measures for HC-model with a countable set of spin values on a Cayley tree

R. M. Khakimov, M. T. Makhammadaliev, U. A. Rozikov

In this paper, we study the HC-model with a countable set of spin values on a Cayley tree of order . This model is defined by a countable set of parameters (th…

math-ph2022★ 6 cited

Mirror symmetry of height-periodic gradient Gibbs measures of a SOS model on Cayley trees

U. A. Rozikov

For the solid-on-solid (SOS) model with spin values from the set of all integers on a Cayley tree we give gradient Gibbs measures (GGMs). Such a measure corresponds to a boundary l…

math-ph2021★ 7 cited

Gradient Gibbs measures of a SOS model on Cayley trees: 4-periodic boundary laws

F. H. Haydarov, U. A. Rozikov

For SOS (solid-on-solid) model with external field and with spin values from the set of all integers, on a Cayley tree we give gradient Gibbs measures (GGMs). Such a measure corres…

math-ph2017★ 1 cited

Weakly periodic Gibbs measures of the Ising model on the Cayley tree of order five and six

Nasir Ganikhodjaev, Muzaffar Rahmatullaev, Mohd Hirzie Bin Mohd Rodzhan

For Ising model on the Cayley tree of order five and six we present new weakly periodic (non-periodic) Gibbs measures corresponding to normal subgroups of indices two in the group…