Results 91 to 100 of about 6,070 (257)

A note on characterizations of irreducibility of nonnegative matrices [PDF]

open access: yes, 1976
Elsner L. A note on characterizations of irreducibility of nonnegative matrices. Linear algebra and its applications. 1976;14(2):187-188.Three sufficient conditions for the irreducibility of a matrix A are given, which for nonnegative A are also ...
Elsner, Ludwig, Elsner, L.
core   +1 more source

FIRE‐GNN: Force‐Informed, Relaxed Equivariance Graph Neural Network for Rapid and Accurate Prediction of Surface Properties

open access: yesAdvanced Intelligent Discovery, EarlyView.
This study introduces FIRE‐GNN, a force‐informed, relaxed equivariant graph neural network for predicting surface work functions and cleavage energies from slab structures. By incorporating surface‐normal symmetry breaking and machine learning interatomic potential‐derived force information, the approach achieves state‐of‐the‐art accuracy and enables ...
Circe Hsu   +5 more
wiley   +1 more source

Mixed Matrices Irreducibility and Decomposition

open access: yes, 1992
Murota, Kazuo. (1992). Mixed Matrices Irreducibility and Decomposition.
Murota, Kazuo, Kazuo Murota
core   +1 more source

Predicting Performance of Hall Effect Ion Source Using Machine Learning

open access: yesAdvanced Intelligent Systems, Volume 7, Issue 3, March 2025.
This study introduces HallNN, a machine learning tool for predicting Hall effect ion source performance using a neural network ensemble trained on data generated from numerical simulations. HallNN provides faster and more accurate predictions than numerical methods and traditional scaling laws, making it valuable for designing and optimizing Hall ...
Jaehong Park   +8 more
wiley   +1 more source

Irreducibility of Kuramoto-Sivashinsky equation driven by degenerate noise

open access: yes, 2022
In this paper, we study irreducibility of Kuramoto-Sivashinsky equation which is driven by an additive noise acting only on a finite number of Fourier modes.
Peng Gao
core   +1 more source

Artificial Intelligence for Advanced Functional Materials: Progress and Emerging Frontiers

open access: yesAdvanced Intelligent Systems, EarlyView.
Artificial intelligence is transforming the discovery of functional materials by linking synthesis, characterization, simulation, and design in unified workflows. Advances in machine learning, autonomous experimentation, and foundation models are accelerating innovation across energy, electronics, and biomedicine, while revealing new frontiers for ...
Cristiano Malica   +38 more
wiley   +1 more source

AI‐Based Immortality: The Ethical Advantage of the Aretai Approach

open access: yesAI &Innovation, EarlyView.
ABSTRACT The convergence of artificial intelligence, digital identity technologies, and biogerontological ambitions has produced a novel set of philosophical problems that have not yet been adequately addressed within mainstream bioethical discourse. Digital life extension—encompassing AI‐generated avatars, neural data preservation, mind uploading, and
Mirko Daniel Garasic
wiley   +1 more source

Transport equation for growing bacterial populations (I)

open access: yesElectronic Journal of Differential Equations, 2012
This work deals with a mathematical study for growing a bacterial population. Each bacterium is distinguished by its degree of maturity and its maturation velocity. Here we study the limit case corresponding to infinite maturation velocities. We show
Mohamed Boulanouar
doaj  

Irreducible Quadrangulations of the Torus

open access: yesJournal of Combinatorial Theory, Series B, 1996
A quadrangulation \(G\) of a closed surface \(S\) is a simple graph embedded in \(S\) all whose faces are quadrangles. A contraction at a pair of points \(\{b,d\}\) which lie in a common face \(f\) is a combinatorial operation that essentially removes the quadrangle \(f\) and ``glues'' together faces containing \(b\) or \(d\) (see precise definition in
openaire   +3 more sources

The Irreducibility of the Bessel Polynomials

open access: yes, 2007
In the early 1950's, Emil Grosswald began investigating the irreducibility of the Bessel polynomials y n (x) and conjectured the irreducibility of y n (x) over the rationals for all positive integers n.
Ognian Trifonov, Michael Filaseta
core  

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