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Advanced Search Results For "NONLINEAR theories"

1 - 10 of 102,110 results for
 "NONLINEAR theories"
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SHOULD UNSTABLE QUANTUM FIELD THEORIES BE LORENTZ-INVARIANT?

Publication Type: Academic Journal

Source(s): Acta Physica Polonica B. 2022, Vol. 53 Issue 11, p1-10. 10p.

Authors:

Abstract: An unstable field theory is what we obtain when we linearise the equations of an interacting field theory near an unstable state. Theories of this kind are adopted to model the onset of spontaneous symmetry breakings, when the fields are sitting on the...

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Theory and Computations for the Nonlinear Burgers' Equation via the Use of Sinc-Galerkin Method.

Publication Type: Academic Journal

Source(s): Journal of Electrical & Computer Engineering. 4/12/2022, p1-10. 10p.

Abstract: In this research, Burgers' equation, which is well known to be nonlinear partial differential equation, has many applications for studying some physical phenomena in the disciplines we mention, water waves, plasma waves, and ion acoustic plasma waves. ...

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A Novel Bidirectional Interaction Model and Electric Energy Measuring Scheme of EVs for V2G with Distorted Power Loads.

Publication Type: Academic Journal

Source(s): CMES-Computer Modeling in Engineering & Sciences. 2022, Vol. 130 Issue 3, p1789-1806. 18p.

Abstract: With the increasing demand for petroleum resources and environmental issues, new energy electric vehicles are increasingly being used. However, the large number of electric vehicles connected to the grid has brought new challenges to the operation of t...

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Numerical Spline Method for Simulation of Stochastic Differential Equations systems.

Publication Type: Academic Journal

Source(s): Journal of Natural Sciences, Life & Applied Sciences. Dec2021, Vol. 5 Issue 4, p111-130. 20p.

Abstract: In this paper, numerical spline method is presented with collocation two parameters for solving systems of multidimensional stochastic differential equations (SDEs). Multi-Wiener's time-continuous process is simulated as a discrete process, and then th...

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Coincidence Theory of a Nonlinear Periodic Sturm–Liouville System and Its Applications.

Publication Type: Academic Journal

Source(s): Axioms (2075-1680). Dec2022, Vol. 11 Issue 12, p726. 12p.

Authors:

Abstract: Based on the second derivative, this paper directly establishes the coincidence degree theory of a nonlinear periodic Sturm–Liouville (SL) system. As applications, we study the existence of periodic solutions to the S–L system with some special nonline...

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Lyapunov matrix‐based method to global robust practical exponential r‐stability for a class of delayed continuous‐time nonlinear systems: Theory and applications.

Publication Type: Academic Journal

Source(s): International Journal of Robust & Nonlinear Control. Dec2022, Vol. 32 Issue 18, p10234-10250. 17p.

Abstract: This article involves the problem of global robust practical exponential r$$ r $$‐stability for a class of delayed continuous‐time nonlinear systems. By proposing a method based on Lyapunov matrix, a global robust practical exponential r$$ r $$‐stabili...

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Design and PIC Simulation of Ka-Band Periodically Loaded High Gain Gyro-Twystron.

Publication Type: Academic Journal

Source(s): IEEE Transactions on Electron Devices. Aug2022, Vol. 69 Issue 8, p4553-4562. 10p.

Abstract: In this article, the design and multimode analysis of a Ka -band, single cavity followed by a periodically dielectric-loaded (PDL) waveguide-based gyro-twystron operating in the fundamental TE01 mode have been presented. The present amplifier has been ...

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Gas-dynamic approach to the theory of non-linear ion-acoustic waves in plasma with Kaniadakis' distributed species.

Publication Type: Academic Journal

Source(s): Advances in Space Research. Jan2023, Vol. 71 Issue 1, p1108-1115. 8p.

Abstract: The non-linear theory of ion-acoustic waves in two-spesies isotropic collisionless plasma is developed. Both light electron and heavy ion species in the plasma are distributed with Kaniadakis' statistics. Kaniadakis' gas law is derived. The exact formu...

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Application of Fixed-Point Index Theory for a Nonlinear Fractional Boundary Value Problem with an Advanced Argument.

Publication Type: Academic Journal

Source(s): Discrete Dynamics in Nature & Society. 9/24/2021, p1-7. 7p.

Abstract: In this paper, we investigate the existence of positive solutions of a class of fractional three-point boundary value problem with an advanced argument by using fixed-point index theory. Our results improve and extend some known results in the literatu...

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To the Analysis of Nonlocal Problems of the Theory of Nonlinear Differential Systems.

Publication Type: Academic Journal

Source(s): Differential Equations. Nov2022, Vol. 58 Issue 11, p1566-1570. 5p.

Abstract: We propose a constructive approach to proving the existence of solutions of operator equations in a Banach space. This approach is applied to the construction and analysis of solutions of matrix Riccati equations bounded on the half-line and not contai...

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