Results 51 to 60 of about 456,102 (333)

Group Invariant Solutions and Conserved Quantities of a (3+1)-Dimensional Generalized Kadomtsev–Petviashvili Equation

open access: yesMathematics, 2020
In this work, we investigate a (3+1)-dimensional generalised Kadomtsev–Petviashvili equation, recently introduced in the literature. We determine its group invariant solutions by employing Lie symmetry methods and obtain elliptic, rational and ...
Innocent Simbanefayi   +1 more
doaj   +1 more source

Exact Analytical Solutions of Generalized Fifth-Order KdV Equation by the Extended Complex Method

open access: yesJournal of Function Spaces, 2021
The recently introduced technique, namely, the extended complex method, is used to explore exact solutions for the generalized fifth-order KdV equation. Appropriately, the rational, periodic, and elliptic function solutions are obtained by this technique.
Mehvish Fazal Ur Rehman   +2 more
doaj   +1 more source

Partial Schauder estimates for second-order elliptic and parabolic equations [PDF]

open access: yesCalc. Var. Partial Differential Equations, 40 (2011), no. 3-4, 481-500, 2010
We establish Schauder estimates for both divergence and non-divergence form second-order elliptic and parabolic equations involving H\"older semi-norms not with respect to all, but only with respect to some of the independent variables.
arxiv   +1 more source

Smart Rubber Extrusion Line Combining Multiple Sensor Techniques for AI‐Based Process Control

open access: yesAdvanced Engineering Materials, EarlyView.
This publication presents a digitalization approach for a laboratory rubber extrusion line, employing innovative measurement methods and artificial intelligence (AI)‐based process control. The results demonstrate that the measurement systems are capable of detecting changes in the process and extrudate quality.
Alexander Aschemann   +18 more
wiley   +1 more source

Extended trial equation method for nonlinear coupled Schrodinger Boussinesq partial differential equations

open access: yesJournal of the Egyptian Mathematical Society, 2016
In this paper, we improve the extended trial equation method to construct the exact solutions for nonlinear coupled system of partial differential equations in mathematical physics.
Khaled A. Gepreel
doaj   +1 more source

Seamless Science: Lifting Experimental Mechanical Testing Lab Data to an Interoperable Semantic Representation

open access: yesAdvanced Engineering Materials, EarlyView.
In pursuit of modern data management techniques, this study presents an in‐lab pipeline combining electronic laboratory notebooks (eLabFTW) and Python scripts for creating semantically enriched, interoperable, machine‐actionable data. Automating data mapping enhances usability, collaboration, and unified knowledge representation.
Markus Schilling   +7 more
wiley   +1 more source

A deep neural network algorithm for semilinear elliptic PDEs with applications in insurance mathematics [PDF]

open access: yesRisks, 8(4):136, 2020, 2020
In insurance mathematics optimal control problems over an infinite time horizon arise when computing risk measures. Their solutions correspond to solutions of deterministic semilinear (degenerate) elliptic partial differential equations. In this paper we propose a deep neural network algorithm for solving such partial differential equations in high ...
arxiv  

Path Integral Solution of Linear Second Order Partial Differential Equations II. Elliptic, Parabolic and Hyperbolic Cases [PDF]

open access: yesAnn. Phys. 314, (2004) 396-424, 2004
A theorem that constructs a path integral solution for general second order partial differential equations is specialized to obtain path integrals that are solutions of elliptic, parabolic, and hyperbolic linear second order partial differential equations with Dirichlet/Neumann boundary conditions.
arxiv   +1 more source

On the definition of ellipticity for systems of partial differential equations

open access: yesJournal of Mathematical Analysis and Applications, 1991
One of the fundamental problems in the theory of partial differential equations is that of classifying equations and systems by type. A specific problem associated with the definition of ellipticity is that when a higherorder equation or system is reduced to a first order system, ellipticity may be destroyed. One approach to that problem was introduced
openaire   +2 more sources

Mechanisms of De‐icing by Surface Rayleigh and Plate Lamb Acoustic Waves

open access: yesAdvanced Engineering Materials, EarlyView.
Ice accretion impacts daily life, renewable energy generation, maintenance, and security in industries and aeronautics. Acoustic waves (AW) are a promising method for ice removal, although de‐icing mechanisms require further investigation to optimize energy efficiency.
Shilpi Pandey   +15 more
wiley   +1 more source

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