Results 1 to 10 of about 14,148 (125)
Approaching Bilinear Multipliers via a Functional Calculus. [PDF]
J Geom Anal, 2018 We propose a framework for bilinear multiplier operators defined via the (bivariate) spectral theorem. Under this framework, we prove Coifman-Meyer type multiplier theorems and fractional Leibniz rules. Our theory applies to bilinear multipliers associated with the discrete Laplacian on Z d , general bi-radial bilinear Dunkl multipliers, and to ...
Wróbel B.
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Bilinear multipliers and transference [PDF]
International Journal of Mathematics and Mathematical Sciences, 2005 We give de Leeuw-type transference theorems for bilinear multipliers. In particular, it is shown that bilinear multipliers arising from regulated functions m(ξ,η) in ℝ×ℝ can be transferred to bilinear multipliers acting on 𝕋×𝕋 and ℤ×ℤ. The results follow
Oscar Blasco
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A Homomorphism Theorem for Bilinear Multipliers [PDF]
Journal of the London Mathematical Society, 2012 In this paper we prove an abstract homomorphism theorem for bilinear multipliers in the setting of locally compact Abelian (LCA) groups. We also provide some applications. In particular, we obtain a bilinear abstract version of K.
Rodríguez-López, Salvador
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Bilinear Multipliers on Banach Function Spaces
Journal of Function Spaces, 2019 Let X1,X2,X3 be Banach spaces of measurable functions in L0(R) and let m(ξ,η) be a locally integrable function in R2. We say that m∈BM(X1,X2,X3)(R) if Bm(f,g)(x)=∫R∫Rf^(ξ)g^(η)m(ξ,η)e2πidξdη, defined for f and g with compactly supported Fourier transform,
Oscar Blasco
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Early age prediction of adhesive anchor strength through curing kinetics and pry out behaviour models [PDF]
Scientific ReportsThe accurate prediction of early-age bond and shear capacity of adhesive anchors remains a critical challenge for engineers aiming to establish reliable performance metrics for bolt applications.
Tshepiso Mollo +2 more
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A counterexample to an endpoint bilinear Strichartz inequality
Electronic Journal of Differential Equations, 2006 The endpoint Strichartz estimate $$ | e^{itDelta} f |_{L^2_t L^infty_x(mathbb{R} imes mathbb{R}^2)} lesssim |f|_{L^2_x(mathbb{R}^2)} $$ is known to be false by the work of Montgomery-Smith [2], despite being only "logarithmically far" from being true in ...
Terence Tao
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Bilinear multipliers of small Lebesgue spaces
TURKISH JOURNAL OF MATHEMATICS, 2021 Let $G$ be a locally compact abelian metric group with Haar measure $\lambda $ and $\hat{G}$ its dual with Haar measure $\mu ,$ and $\lambda ( G) $ is finite.
Öznur KULAK, A.Turan GÜRKANLI
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Augmented GBM Nonlinear Model to Address Spectral Variability for Hyperspectral Unmixing
Remote Sensing, 2023 Spectral unmixing (SU) is a significant preprocessing task for handling hyperspectral images (HSI), but its process is affected by nonlinearity and spectral variability (SV). Currently, SV is considered within the framework of linear mixing models (LMM),
Linghong Meng +5 more
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Bilinear Fourier Multipliers of Bounded Variation
International Mathematics Research Notices, 2022 Abstract In this paper, we obtain weighted estimates for bilinear Fourier multipliers of bounded variation that provide new restricted weak-type bounds. We also study their boundedness on the setting of the weighted Lorentz spaces. The results are obtained using Rubio de Francia extrapolation as the main tool.
Baena-Miret, Sergi +3 more
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Analysis and Computations of Optimal Control Problems for Boussinesq Equations
Fluids, 2022 The main purpose of engineering applications for fluid with natural and mixed convection is to control or enhance the flow motion and the heat transfer.
Andrea Chierici +2 more
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