Results 41 to 50 of about 1,155,711 (261)

Generalized Fuzzy Torus and its Modular Properties

open access: yesSymmetry, Integrability and Geometry: Methods and Applications, 2013
We consider a generalization of the basic fuzzy torus to a fuzzy torus with non-trivial modular parameter, based on a finite matrix algebra. We discuss the modular properties of this fuzzy torus, and compute the matrix Laplacian for a scalar field.
Paul Schreivogl, Harold Steinacker
doaj   +1 more source

Using matrix models to estimate aboveground forest biomass dynamics in the eastern USA through various combinations of LiDAR, Landsat, and forest inventory data

open access: yesEnvironmental Research Letters, 2018
The ability to harmonize data sources with varying temporal, spatial, and ecosystem measurements (e.g. forest structure to soil organic carbon) for creation of terrestrial carbon baselines is paramount to refining the monitoring of terrestrial carbon ...
Wu Ma   +5 more
doaj   +1 more source

The formal demography of kinship VI: Demographic stochasticity and variance in the kinship network [PDF]

open access: yesDemographic Research
BACKGROUND: Although the matrix model for kinship networks includes many demographic processes, it is deterministic. It provides values of age-stage distributions of kin, but no information on (co)variances. Because kin populations are small, demographic
Hal Caswell
doaj   +1 more source

Knots and Matrix Models

open access: yesInfinite Dimensional Analysis, Quantum Probability and Related Topics, 1998
A generating function for knot diagrams is constructed. We consider a matrix model with d(N×N) matrices and show that in the limits N→∞ and d→0 the model describes the knot diagrams. The same limit in matrix string theory is also discussed. We speculate that a prototypical M(atrix) without matrix theory exists in void.
Aref'eva, I. Ya., Volovich, I. V.
openaire   +2 more sources

Matrix Models for Eigenstate Thermalization

open access: yesPhysical Review X, 2023
We develop a class of matrix models that implement and formalize the eigenstate thermalization hypothesis (ETH) and point out that, in general, these models must contain non-Gaussian corrections in order to correctly capture thermal mean-field theory or ...
Daniel Louis Jafferis   +3 more
doaj   +1 more source

The Multitrace Matrix Model of Scalar Field Theory on Fuzzy CP^n

open access: yesSymmetry, Integrability and Geometry: Methods and Applications, 2010
We perform a high-temperature expansion of scalar quantum field theory on fuzzy CP^n to third order in the inverse temperature. Using group theoretical methods, we rewrite the result as a multitrace matrix model.
Christian Sämann
doaj   +1 more source

On matrix models of M5 branes [PDF]

open access: yesNuclear Physics B, 1998
30 pages, Refs added.
Brodie, John, Ramgoolam, Sanjaye
openaire   +3 more sources

An Index for Intersecting Branes in Matrix Models

open access: yesSymmetry, Integrability and Geometry: Methods and Applications, 2013
We introduce an index indicating the occurrence of chiral fermions at the intersection of branes in matrix models. This allows to discuss the stability of chiral fermions under perturbations of the branes.
Harold Steinacker, Jochen Zahn
doaj   +1 more source

Second moment fuzzy-field-theory-like matrix models

open access: yesJournal of High Energy Physics, 2020
We solve a multitrace matrix model approximating the real quartic scalar field theory on the fuzzy sphere and obtain its phase diagram. We generalize this method to models with modified kinetic terms and demonstrate its use by investigating models ...
Mária Šubjaková, Juraj Tekel
doaj   +1 more source

E6 Matrix Model [PDF]

open access: yesProgress of Theoretical Physics, 2002
30 pages, 1 figure, LaTex 2e, v2: corrected a figure, v3: a reference added and minor ...
openaire   +2 more sources

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