Spectral peculiarity and criticality of a human connectome

N Pospelov, S Nechaev, K Anokhin, O Valba… - Physics of life …, 2019 - Elsevier
We have performed the comparative spectral analysis of structural connectomes for various
organisms using open-access data. Our results indicate new peculiar features of …

Network geometry and complexity

D Mulder, G Bianconi - Journal of Statistical Physics, 2018 - Springer
Higher order networks are able to characterize data as different as functional brain networks,
protein interaction networks and social networks beyond the framework of pairwise …

Robust extended states in Anderson model on partially disordered random regular graphs

D Kochergin, IM Khaymovich, O Valba, AS Gorsky - SciPost Physics, 2024 - scipost.org
In this work we analytically explain the origin of the mobility edge in the partially disordered
random regular graphs of degree d, ie, with a fraction $\beta $ of the sites being disordered …

Anatomy of the fragmented Hilbert space: Eigenvalue tunneling, quantum scars, and localization in the perturbed random regular graph

D Kochergin, IM Khaymovich, O Valba, A Gorsky - Physical Review B, 2023 - APS
We consider the properties of the random regular graph with node degree d perturbed by
chemical potentials μ k for a number of short k-cycles. We analyze both numerically and …

Localization and non-ergodicity in clustered random networks

V Avetisov, A Gorsky, S Nechaev… - Journal of Complex …, 2020 - academic.oup.com
We consider clustering in rewired Erdős–Rényi networks with conserved vertex degree and
in random regular graphs from the localization perspective. It has been found in Avetisov et …

A flow in the forest

A Gorsky, V Kazakov, F Levkovich-Maslyuk… - Journal of High Energy …, 2023 - Springer
A bstract Using the matrix-forest theorem and the Parisi-Sourlas trick we formulate and solve
a one-matrix model with non-polynomial potential which provides perturbation theory for …

Phase transitions in social networks inspired by the Schelling model

V Avetisov, A Gorsky, S Maslov, S Nechaev, O Valba - Physical Review E, 2018 - APS
We propose two models of social segregation inspired by the Schelling model. Agents in our
models are nodes of evolving social networks. The total number of social connections of …

Mobility edge in the Anderson model on partially disordered random regular graphs

O Valba, A Gorsky - JETP Letters, 2022 - Springer
We study numerically the Anderson model on partially disordered random regular graphs
considered as the toy model for a Hilbert space of interacting disordered many-body system …

Self-isolation or borders closing: What prevents the spread of the epidemic better?

O Valba, V Avetisov, A Gorsky, S Nechaev - Physical Review E, 2020 - APS
Pandemic propagation of COVID-19 motivated us to discuss the impact of the human
network clustering on epidemic spreading. Today, there are two clustering mechanisms …

Free-energy density functional for Strauss's model of transitive networks

D Escribano, JA Cuesta - Physical Review E, 2022 - APS
Ensemble models of graphs are one of the most important theoretical tools to study complex
networks. Among them, exponential random graphs (ERGs) have proven to be very useful in …