Results 1 to 10 of about 122,445 (270)
Coercivity and stability results for an extended Navier-Stokes system [PDF]
Journal of Mathematical Physics, 2012 In this article we study a system of equations that is known to {\em extend} Navier-Stokes dynamics in a well-posed manner to velocity fields that are not necessarily divergence-free. Our aim is to contribute to an understanding of the role of divergence
Abels H. +11 more
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Intrinsic ferroelectric elastomers with ultrahigh Curie temperature and fast polarization switching [PDF]
Nature CommunicationsFerroelectric materials are well-suited for advanced wearable electronics, where elasticity and user comfort are paramount. Nevertheless, current ferroelectric elastomers, primarily based on polyvinylidene fluoride (PVDF) copolymers, suffer from low ...
Yuxin Wang +7 more
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Quot-scheme limit of Fubini-Study metrics and Donaldson's functional for vector bundles [PDF]
Épijournal de Géométrie Algébrique, 2022 For a holomorphic vector bundle $E$ over a polarised K\"ahler manifold, we establish a direct link between the slope stability of $E$ and the asymptotic behaviour of Donaldson's functional, by defining the Quot-scheme limit of Fubini-Study metrics.
Yoshinori Hashimoto, Julien Keller
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Structural stability without coercivity
Optimization, 2022 We study structural stability and local uniqueness of bang-bang-singular extremals in a fixed-free Mayer problem. The problem can be seen as an optimal control problem where the dynamics is control-affine. We prove our results under the same assumptions on the nominal problem that permit us to prove that the extremal is a strict strong local optimiser:
Poggiolini Laura, Stefani Gianna
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On fourth order accuracy stable difference scheme for a multi-point overdetermined elliptic problem
Қарағанды университетінің хабаршысы. Математика сериясы, 2021 In this paper fourth order of accuracy difference scheme for approximate solution of a multi-point elliptic overdetermined problem in a Hilbert space is proposed.
C. Ashyralyyev, G. Akyuz
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Phase stability and coercivity in La2Fe14B magnet
AIP Advances, 2023 Critical rare-earth free La2Fe14B (2:14:1) has the potential to be a gap permanent magnet. However, La2Fe14B decomposes into La, α-Fe, and LaFe4B4 phases below 1067 K. The phase stability and coercivity have been studied in La2Fe14B magnet using first principles DFT (density functional theory) calculation and micromagnetic simulation.
X. B. Liu, I. C. Nlebedim
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Parabolic time dependent source identification problem with involution and Neumann condition
Қарағанды университетінің хабаршысы. Математика сериясы, 2021 A time dependent source identification problem for parabolic equation with involution and Neumann condition is studied. The well-posedness theorem on the differential equation of the source identification parabolic problem is established.
A. Ashyralyev, A.S. Erdogan
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Қарағанды университетінің хабаршысы. Математика сериясы, 2020 In modeling various real processes, an important role is played by methods of solution source identification problem for partial differential equation.
C. Ashyralyyev, A. Cay
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Well-posedness of boundary value problems for reverse parabolic equation with integral condition [PDF]
E-Journal of Analysis and Applied Mathematics, 2018 Reverse parabolic equation with integral condition is considered. Well-posedness of reverse parabolic problem in the Hölder space is proved. Coercive stability estimates for solution of three boundary value problems (BVPs) to reverse parabolic equation ...
Charyyar Ashyralyyev
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Temperature Dependent Piezoelectric Properties of Lead-Free (1-x)K0.6Na0.4NbO3–xBiFeO3 Ceramics [PDF]
, 2020 (1-x)K0.4Na0.6NbO3–xBiFeO3 lead-free piezoelectric ceramics were successfully prepared in a single perovskite phase using the conventional solid-state synthesis.
Feteira, Antonio +6 more
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