Results 11 to 20 of about 336,848 (164)
On Structured Random Matrices Defined by Matrix Substitutions
Mathematics, 2023 The structure of the random matrices introduced in this work is given by deterministic matrices—the skeletons of the random matrices—built with an algorithm of matrix substitutions with entries in a finite field of integers modulo some prime number, akin
Manuel L. Esquível, Nadezhda P. Krasii
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Random-energy model in random fields [PDF]
Physical Review E, 2006 The random-energy model is studied in the presence of random fields. The problem is solved exactly both in the microcanonical ensemble, without recourse to the replica method, and in the canonical ensemble using the replica formalism. The phase diagrams for bimodal and Gaussian random fields are investigated in detail. In contrast to the Gaussian case,
Filho, Luiz O. de Oliveira +2 more
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Architecture, Civil Engineering, Environment, 2023 The paper presents a proprietary procedure for the analysis of normal stress distributions in post-tensioned cross-sections. It has a significant advantage over conventional commonly used approaches based solely on the envelope analysis as it provides ...
Owerko Piotr
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Applied Sciences, 2022 For the numerical simulation of components made of short fiber-reinforced composites, the correct prediction of the deformation including the elastic and plastic behavior and its spatial distribution is essential. When using purely deterministic modeling
Natalie Rauter
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Frontiers in Marine Science, 2023 Reservoir bank slopes with weak interlayers are common in the Three Gorges Reservoir area. Their stabilities are affected by multi-coupled factors (e.g., reservoir water fluctuations, rainfall, and earthquakes in the reservoir area).
Wengang Zhang +9 more
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Компьютерная оптика, 2022 The relevance of the tasks of detecting and recognizing objects in images and their sequences has only increased over the years. Over the past few decades, a huge number of approaches and methods for detecting both anomalies, that is, image areas whose ...
N.A. Andriyanov +2 more
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Dimensionality of random light fields
Journal of the European Optical Society-Rapid Publications, 2017 Background The spectral polarization state and dimensionality of random light are important concepts in modern optical physics and photonics. Methods By use of space-frequency domain coherence theory, we establish a rigorous classification for the ...
Andreas Norrman +3 more
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Stochastic finite elements: Where is the physics? [PDF]
Theoretical and Applied Mechanics, 2011 The micromechanics based on the Hill-Mandel condition indicates that the majority of stochastic finite element methods hinge on random field (RF) models of material properties (such as Hooke’s law) having no physical content, or even at odds with ...
Ostoja-Starzewski Martin
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Topology Optimisation under Uncertainties with Neural Networks
Algorithms, 2022 Topology optimisation is a mathematical approach relevant to different engineering problems where the distribution of material in a defined domain is distributed in some optimal way, subject to a predefined cost function representing desired (e.g ...
Martin Eigel +2 more
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Some remarks on selfnormalization for a simple spatial autoregressive model
Lietuvos Matematikos Rinkinys, 2021 In the paper I continue investigations on the self-normalization of simple autoregressive field Xt,s = aXt−1,s + bXt,s−1 + εt,s started in [5]. And extend previous results when the variance of the innovations of the process above are not finite.
Romas Zovė
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