Zobrazeno 1 - 10
of 117
pro vyhledávání: '"Zdzislaw Burda"'
Publikováno v:
Entropy, Vol 23, Iss 7, p 842 (2021)
We study wealth rank correlations in a simple model of macroeconomy. To quantify rank correlations between wealth rankings at different times, we use Kendall’s τ and Spearman’s ρ, Goodman–Kruskal’s γ, and the lists’ overlap ratio. We sho
Externí odkaz:
https://doaj.org/article/0ae925364137410f8f2fe2cb660d5cb7
Autor:
Zdzislaw Burda
Publikováno v:
Entropy, Vol 22, Iss 11, p 1236 (2020)
We develop an agent-based model to assess the cumulative number of deaths during hypothetical Covid-19-like epidemics for various non-pharmaceutical intervention strategies. The model simulates three interrelated stochastic processes: epidemic spread
Externí odkaz:
https://doaj.org/article/4ac98254b80b41528704c7c8660b8c30
Publikováno v:
Nuclear Physics B, Vol 897, Iss C, Pp 421-447 (2015)
Following our recent letter [1], we study in detail an entry-wise diffusion of non-hermitian complex matrices. We obtain an exact partial differential equation (valid for any matrix size N and arbitrary initial conditions) for evolution of the averag
Externí odkaz:
https://doaj.org/article/56da00646ff84ac5a7c472c726e6a57d
Publikováno v:
PLoS Computational Biology, Vol 12, Iss 12, p e1005218 (2016)
Evolutionary pathways describe trajectories of biological evolution in the space of different variants of organisms (genotypes). The probability of existence and the number of evolutionary pathways that lead from a given genotype to a better-adapted
Externí odkaz:
https://doaj.org/article/e9d9f644d3b74cafa085b664f6340bd9
Publikováno v:
Physical review. E. 105(5-1)
We discuss a cellular automaton simulating the process of reaching Heider balance in a fully connected network. The dynamics of the automaton is defined by a deterministic, synchronous and global update rule. The dynamics has a very rich spectrum of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d12b449bfe1a4952ffe34e96b7570f71
https://pubmed.ncbi.nlm.nih.gov/35706162
https://pubmed.ncbi.nlm.nih.gov/35706162
Autor:
Andrzej Jarosz, Zdzislaw Burda
Publikováno v:
Physical review. E. 105(3-1)
We elucidate the problem of estimating large-dimensional covariance matrices in the presence of correlations between samples. To this end, we generalize the Marcenko-Pastur equation and the Ledoit-Peche shrinkage estimator using methods of random mat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f6845b26f38b45eda3d1ed20ccdc1c1d
https://pubmed.ncbi.nlm.nih.gov/35428160
https://pubmed.ncbi.nlm.nih.gov/35428160
Publikováno v:
Entropy
Volume 23
Issue 7
Entropy, Vol 23, Iss 842, p 842 (2021)
Volume 23
Issue 7
Entropy, Vol 23, Iss 842, p 842 (2021)
We study wealth rank correlations in a simple model of macro-economy. To quantify rank correlations between wealth rankings at different times, we use Kendall's $\tau$ and Spearman's $\rho$, Goodman--Kruskal's $\gamma$, and the lists' overlap ratio.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8fd89809c0e1c31df8171a9f183fd641
http://arxiv.org/abs/2105.08048
http://arxiv.org/abs/2105.08048
We derive exact analytical expressions for correlation functions of singular values of the product of $M$ Ginibre matrices of size $N$ in the double scaling limit $M,N\rightarrow \infty$. The singular value statistics is described by a determinantal
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c70cd19207c7bfbf39611cae82096004
http://arxiv.org/abs/2008.11470
http://arxiv.org/abs/2008.11470
Many real-world complex networks arise as a result of a competition between growth and rewiring processes. Usually the initial part of the evolution is dominated by growth while the later one rather by rewiring. The initial growth allows the network
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7c7f3f7f69c54c8459861c5b71429624
http://arxiv.org/abs/2005.11506
http://arxiv.org/abs/2005.11506
Autor:
Zdzislaw Burda
We discuss the concept of width-to-spacing ratio which plays the central role in the description of local spectral statistics of evolution operators in multiplicative and additive stochastic processes for random matrices. We show that the local spect
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::02d978d5b95363cfe0ee600a27b6ea12