Zobrazeno 1 - 10
of 38
pro vyhledávání: '"Valba, Olga"'
In this study, we explore the fundamental principles behind the architecture of the human brain's structural connectome, from the perspective of spectral analysis of Laplacian and adjacency matrices. Building on the idea that the brain strikes a bala
Externí odkaz:
http://arxiv.org/abs/2405.17349
Publikováno v:
SciPost Phys. 16, 106 (2024)
In this work we analytically explain the origin of the mobility edge in the partially disordered random regular graphs of degree d, i.e., with a fraction $\beta$ of the sites being disordered, while the rest remain clean. It is shown that the mobilit
Externí odkaz:
http://arxiv.org/abs/2309.05691
Publikováno v:
Phys. Rev. B 108, 094203 (2023)
We consider the properties of the random regular graph with node degree $d$ perturbed by chemical potentials $\mu_k$ for a number of short $k$-cycles. We analyze both numerically and analytically the phase diagram of the model in the $(\mu_k,d)$ plan
Externí odkaz:
http://arxiv.org/abs/2305.14416
Autor:
Valba, Olga, Gorsky, Alexander
It is important to reveal the mechanisms of propagation in different cognitive networks. In this study we discuss the k-clique percolation phenomenon on the free association networks including "English Small World of Words project" (SWOW-EN). We comp
Externí odkaz:
http://arxiv.org/abs/2110.09317
Autor:
Gorsky, Alexander, Valba, Olga
Publikováno v:
Phys. Rev. D 103, 106013 (2021)
We discuss numerically the non-perturbative effects in exponential random graphs which are analogue of eigenvalue instantons in matrix models. The phase structure of exponential random graphs with chemical potential for 4-cycles and degree preserving
Externí odkaz:
http://arxiv.org/abs/2101.04072
Akademický článek
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Autor:
Valba, Olga
De nombreux systèmes biologiques présentent une organisation complexe. Par exemple, les biopolymères peuvent posséder une structure très hiérarchisée responsable de leur fonction particulière. Comprendre la complexité de cette organisation p
Externí odkaz:
http://www.theses.fr/2013PA112240/document
Publikováno v:
J. Stat. Mech. (2014) P12004
In this paper, we investigate analytically the properties of the disordered Bernoulli model of planar matching. This model is characterized by a topological phase transition, yielding complete planar matching solutions only above a critical density t
Externí odkaz:
http://arxiv.org/abs/1406.5537
Publikováno v:
Phys. Rev. E 88, 052117 (2013)
We study the planar matching problem, defined by a symmetric random matrix with independent identically distributed entries, taking values 0 and 1. We show that the existence of a perfect planar matching structure is possible only above a certain cri
Externí odkaz:
http://arxiv.org/abs/1307.2170
Autor:
Valba, Olga1 (AUTHOR) ovalba@hse.ru, Gorsky, Alexander2,3 (AUTHOR)
Publikováno v:
Scientific Reports. 4/1/2022, Vol. 12 Issue 1, p1-9. 9p.
