Results 31 to 40 of about 115,613,181 (224)

Inverse problems for Lorentzian manifolds and non-linear hyperbolic equations [PDF]

, 2018
We study two inverse problems on a globally hyperbolic Lorentzian manifold (M, g). The problems are: / 1. Passive observations in spacetime: consider observations in an open set V⊂M .
Matti Lassas, Lassas, Matti, Kurylev, Y, Lassas, M, Uhlmann, G, Yaroslav Kurylev, Gunther Uhlmann, Uhlmann, Gunther, Kurylev, Yaroslav   +8 more
core   +1 more source

Updatable Closed‐Form Evaluation of Arbitrarily Complex Multiport Network Connections

Advanced Electronic Materials, EarlyView.
The inverse design of electrically large wave devices often uses reduced‐order multiport models with discrete optimization, requiring many evaluations of complex interconnections between subsystems that differ only in a few blocks. This paper introduces a closed‐form framework enabling efficient Woodbury low‐rank updates of related, previous ...
Hugo Prod'homme, Philipp del Hougne
wiley   +1 more source

Synchronization of Analog Neuron Circuits With Digital Memristive Synapses: An Hybrid Approach

Advanced Electronic Materials, EarlyView.
An hybrid circuit mimicking neural units coupled using memristive synapses is introduced. The analog neurons provide flexibility and robustness, and the digital memristive coupling guarantees the full reconfigurability of the interconnection. The onset of a synchronized spiking behavior in two circuits mimicking the Izhikevich neuron is discussed from ...
Lamberto Carnazza, Francesco Maria Esposito, Carlo Famoso, Arturo Buscarino   +3 more
wiley   +1 more source

Exploring parameter dependence of atomic minima with implicit differentiation

npj Computational Materials
Interatomic potentials are essential to go beyond ab initio size limitations, but simulation results depend sensitively on potential parameters. Forward propagation of parameter variation is key for uncertainty quantification, whilst backpropagation has ...
Ivan Maliyov, Petr Grigorev, Thomas D. Swinburne   +2 more
doaj   +1 more source

Inverse problems for stochastic transport equations [PDF]

, 2014
Inverse problems for stochastic linear transport equations driven by a temporal or spatial white noise are discussed. We analyse stochastic linear transport equations which depend on an unknown potential and have either additive noise or multiplicative ...
Peszat, S, Crisan, Dan, Peszat, Szymon, Otobe, Yoshiki, Otobe, Y, Crisan, D   +5 more
core   +1 more source

Mapping the Innovation DNA of Agribusiness Firms: A Multi‐Method Analysis of Strategic Capabilities and Performance

Agribusiness, EarlyView.
ABSTRACT Innovation is essential for competitiveness in agribusiness facing dynamic environments. This study examines how market orientation, marketing, relational, and social capabilities influence innovation performance. Using data from 751 Spanish firms and a multi‐method approach that integrates Structural Equation Modeling (PLS‐SEM), Necessary ...
Beatriz Corchuelo Martínez‐Azúa, Alvaro Dias   +1 more
wiley   +1 more source

A Unifying Approach to Self‐Organizing Systems Interacting via Conservation Laws

Advanced Intelligent Discovery, EarlyView.
The article develops a unified way to model and analyze self‐organizing systems whose interactions are constrained by conservation laws. It represents physical/biological/engineered networks as graphs and builds projection operators (from incidence/cycle structure) that enforce those constraints and decompose network variables into constrained versus ...
F. Barrows, G. Zhang, S. Anand, Z. Chen, J. Lin, A. Desai, S. Martiniani, F. Caravelli   +7 more
wiley   +1 more source

D-analogue of an algorithm for determining single-parametric Drazin generalized inverse matrix based on matrix full rank factorization

Известия Томского политехнического университета: Инжиниринг георесурсов, 2019
The urgency of the research is caused by the wide application of Drazin generalized inverse matrix in the theory of finite Markov chains, in solving linear shifting system of differential equations, difference equations, problems of optimal control of ...
Hamlet Aslanyan, Sargis Simonyan
doaj  

Interpretability and Representability of Commutative Algebra, Algebraic Topology, and Topological Spectral Theory for Real‐World Data

Advanced Intelligent Discovery, EarlyView.
This article investigates how persistent homology, persistent Laplacians, and persistent commutative algebra reveal complementary geometric, topological, and algebraic invariants or signatures of real‐world data. By analyzing shapes, synthetic complexes, fullerenes, and biomolecules, the article shows how these mathematical frameworks enhance ...
Yiming Ren, Guo‐Wei Wei
wiley   +1 more source

Methods for determining complex on-parametric generalized inverse matrices

Известия Томского политехнического университета: Инжиниринг георесурсов, 2019
The relevance of the research is caused by the necessity of the efficient definition of complex one-parameter generalized inverse matrices of Moore and Penrouse, which are often used when solving various science and engineering problems, and for its ...
Sargis Simonyan
doaj   +2 more sources