Strichartz estimates for orthonormal functions and probabilistic convergence of density functions of compact operators on manifolds Article Swipe

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Yan Wei , Jinqiao Duan , Jianhua Huang , Haoyuan Xu , Meihua Yang · YOU? · · 2024 · Open Access · · DOI: https://doi.org/10.48550/arxiv.2408.13764

In this paper, we establish some Strichartz estimates for orthonormal functions and probabilistic convergence of density functions related to compact operators on manifolds. Firstly, we present the suitable bound of $\int_{a\leq|s|\leq b}e^{isx}s^{-1+iγ}ds$ for the cases $γ\in \mathbb{R},a\geq0,b>0,$ $γ\in \mathbb{R},γ\neq0,a,b\in \mathbb{R}$ and $γ\in \mathbb{R}$, which extends the result of Page 204 of Vega (199-211,IMA Vol. Math. Appl., 42, 1992.) Secondly, we prove that $\left|γ\int_{a}^{b}e^{isx}s^{-1+iγ}ds\right|\leq C(1+|γ|)^{2}(γ\in \mathbb{R},a,b\in \mathbb{R}),$ where $C$ is independent of $γ,a, b$, which extends Lemma 1 of Bez et al. (Forum of Mathematics, Sigma, 9(2021), 1-52). Thirdly, we extend the result of Theorems 8, 9 of R. Frank, J. Sabin (Amer. J. Math. 139(2017), 1649-1691.) with the aid of the suitable bound of the above complex integrals established in this paper. Fourthly, we establish the Strichartz estimates for orthonormal functions related to Boussinesq operator on the real line for both small time interval and large time interval and on the torus with small time interval; we also establish the convergence result of some compact operators in Schatten norm. Fifthly, we establish the convergence result related to nonlinear part of the solution to some operator equations in Schatten spaces. Finally, inspired by the work of Hadama and Yamamoto (Probabilistic Strichartz estimates in Schatten classes and their applications to Hartree equation, arxiv:2311.02713v1.), for $γ_{0}\in \mathfrak{S}^{2}$, we establish the probabilistic convergence of density functions of compact operator on manifolds with full randomization, which improves the result of Corollary 1.2 of Bez et al. (Selecta Math. 26(2020), 24 pp) in the probabilistic sense.

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preprint

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en

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http://arxiv.org/abs/2408.13764

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https://arxiv.org/pdf/2408.13764

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https://doi.org/10.48550/arxiv.2408.13764

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Strichartz estimates for orthonormal functions and probabilistic convergence of density functions of compact operators on manifolds

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preprint

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en

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2024

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2024-08-25

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Yan Wei, Jinqiao Duan, Jianhua Huang, Haoyuan Xu, Meihua Yang

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https://arxiv.org/abs/2408.13764

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Orthonormal basis, Probabilistic logic, Convergence (economics), Mathematics, Pure mathematics, Mathematical analysis, Applied mathematics, Physics, Economics, Statistics, Economic growth, Quantum mechanics

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