Results 51 to 60 of about 3,705,692 (145)
Approximate Solution For Multi Dimensional Delay Fredholm Integro Partial Differential Equation By Using B.Spline Polynomials [PDF]
The main purpose of this work is to devote B.spline with two variablesas basis functions to find approximate solution of Multi dimensional delayfredholm integro partial differential equations .Three numerical examples are given for determining the ...
Shymaa Hussain Salih
doaj +1 more source
Deep Neural Network Algorithms for Parabolic PIDEs and Applications in Insurance and Finance
In this paper we study deep neural network algorithms for solving linear and semilinear parabolic partial integro-differential equations with boundary conditions in high dimension. Our method can be considered as an extension of the deep splitting method
Rüdiger Frey, Verena Köck
doaj +1 more source
Peridynamic Modelling of Process‐Dependent Material Strength in Additive Manufacturing
ABSTRACT Additive Manufacturing (AM) processes create complex, process‐dependent material properties during printing that cannot be measured in advance and are governed by parameters, such as tool path, temperature history and cooling conditions. A Peridynamics (PD) correspondence framework is presented for simulating the entire AM process chain ...
Christian Willberg, Jan‐Timo Hesse
wiley +1 more source
This paper depends on some concepts related to the triple Shehu transform; and how its various properties can be used to solve three-dimensional linear Volterra Integro-Partial Differential Equations; in terms of obtaining the exact solutions. Some examples will be studied to support the effectiveness of this transform.
openaire +1 more source
Abstract Spatial heterogeneity, manifested as strong variability in hydraulic conductivity (K) within geological formations, exerts a fundamental control on groundwater flow and solute transport. Because K can vary over multiple orders of magnitude in complex three‐dimensional patterns, predicting contaminant plume migration remains a long‐standing ...
Zhilin Guo +8 more
wiley +1 more source
Tensor‐Train Compression of a Volume Integral Eddy Current Problem in Discontinuous Galerkin
ABSTRACT The paper presents a low‐rank tensor compression strategy based on the tensor‐train (TT) format for the integral operator arising in eddy current problems. Unlike classical matrix compression techniques such as the fast multipole method (FMM) or hierarchical matrices (ℋ$$ \mathscr{H} $$‐matrices), which typically compress only far‐field ...
Anthony Torosyan +5 more
wiley +1 more source
Rethinking Mistrust: Elements Toward a Situated Theory on Immigrant Workers
ABSTRACT This article explores mistrust as a socially situated phenomenon by using the care trajectories of injured immigrant workers in Québec as a conceptual entry point. Rather than focusing on the individual characteristics of trusters, it examines how mistrust emerges from a subjective evaluation of environments perceived as threatening.
Maude Arsenault, Daniel Côté
wiley +1 more source
Stochastic Gradient Descent in High Dimensions for Multi‐Spiked Tensor PCA
ABSTRACT We study the high‐dimensional dynamics of online stochastic gradient descent (SGD) for the multi‐spiked tensor model. This multi‐index model arises from the tensor principal component analysis (PCA) problem with multiple spikes, where the goal is to estimate the unknown signal vectors within the N$N$‐dimensional unit sphere through maximum ...
Gérard Ben Arous +2 more
wiley +1 more source
Symmetry Extensions and Their Physical Reasons in the Kinetic and Hydrodynamic Plasma Models
Characteristic examples of continuous symmetries in hydrodynamic plasma theory (partial differential equations) and in kinetic Vlasov-Maxwell models (integro-differential equations) are considered.
Volodymyr B. Taranov
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Analysis of Eigenvalue Clustering Leads to Optimal Scaling in Numerical Radiative Transfer
ABSTRACT We consider a multidimensional polychromatic radiative transfer (RT) problem, accounting for scattering processes in a general form, that is, anisotropic (dipole) scattering with partial frequency redistribution. Given a discrete ordinates (SN$$ {S}_N $$) discretization, we report the corresponding matrix structures, depending on the model and
Pietro Benedusi +3 more
wiley +1 more source

