Results 51 to 60 of about 1,067,783 (177)

The geometry of evolved community matrix spectra

open access: yesScientific Reports, 2022
Random matrix theory has been applied to food web stability for decades, implying elliptical eigenvalue spectra and that large food webs should be unstable.
Silja Borring Låstad, Jan O. Haerter
doaj   +1 more source

Compact support probability distributions in random matrix theory [PDF]

open access: yes, 1998
We consider a generalization of the fixed and bounded trace ensembles introduced by Bronk and Rosenzweig up to an arbitrary polynomial potential. In the large-N limit we prove that the two are equivalent and that their eigenvalue distribution coincides ...
C.W.J. Beenakker   +20 more
core   +5 more sources

Uncovering functional signature in neural systems via random matrix theory.

open access: yesPLoS Computational Biology, 2019
Neural systems are organized in a modular way, serving multiple functionalities. This multiplicity requires that both positive (e.g. excitatory, phase-coherent) and negative (e.g.
Assaf Almog   +6 more
doaj   +1 more source

N $$ \mathcal{N} $$ = 2 JT supergravity and matrix models

open access: yesJournal of High Energy Physics, 2023
Generalizing previous results for N $$ \mathcal{N} $$ = 0 and N $$ \mathcal{N} $$ = 1, we analyze N $$ \mathcal{N} $$ = 2 JT supergravity on asymptotically AdS2 spaces with arbitrary topology and show that this theory of gravity is dual, in a holographic
Gustavo J. Turiaci, Edward Witten
doaj   +1 more source

An Introduction to Wishart Matrix Moments

open access: yes, 2018
These lecture notes provide a comprehensive, self-contained introduction to the analysis of Wishart matrix moments. This study may act as an introduction to some particular aspects of random matrix theory, or as a self-contained exposition of Wishart ...
Bishop, Adrian N.   +2 more
core   +1 more source

Chiral random matrix theory for two-color QCD at high density

open access: yes, 2010
We identify a non-Hermitian chiral random matrix theory that corresponds to two-color QCD at high density. We show that the partition function of the random matrix theory coincides with the partition function of the finite-volume effective theory at high
Kanazawa, Takuya   +2 more
core   +1 more source

Eigenvalue-based Detection Techniques Using Finite Dimensional Complex Random Matrix Theory: A Review [PDF]

open access: yesEAI Endorsed Transactions on Industrial Networks and Intelligent Systems, 2018
Detection of primary users without requiring information of signal is of great importance in spectrum sensing (SS) in Cognitive Radio. Therefore, in recent years, eigenvalue based spectrum sensing algorithms are under the spotlight.
Ayse Kortun
doaj   +1 more source

Asymptotic Analysis of Large Cooperative Relay Networks Using Random Matrix Theory

open access: yesEURASIP Journal on Advances in Signal Processing, 2008
Cooperative transmission is an emerging communication technology that takes advantage of the broadcast nature of wireless channels. In cooperative transmission, the use of relays can create a virtual antenna array so that multiple-input/multiple-output ...
H. Poor, Z. Han, Husheng Li
doaj   +1 more source

Gravity without averaging

open access: yesSciPost Physics, 2022
We present a gravitational theory that interpolates between JT gravity, and a gravity theory with a fixed boundary Hamiltonian. For this, we consider a matrix integral with the insertion of a Gaussian with variance $\sigma^2$, centered around a matrix
Andreas Blommaert, Jorrit Kruthoff
doaj   +1 more source

QUANTUM DYNAMICS AND RANDOM MATRIX THEORY [PDF]

open access: yesLattice Statistics and Mathematical Physics, 2002
We compute the survival probability of an initial state, with an energy in a certain window, by means of random matrix theory. We determine its probability distribution and show that is is universal, i.e. characterised only by the symmetry class of the hamiltonian and independent of the initial state.
openaire   +4 more sources

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