Zobrazeno 1 - 10
of 1 327
pro vyhledávání: '"Pseudo-differential operator"'
Autor:
Ramla Benhamoud
Publikováno v:
Open Mathematics, Vol 22, Iss 1, Pp 269-305 (2024)
In this note, we prove that the toroidal pseudo-differential operator is bounded from L∞(Tn){L}^{\infty }\left({{\mathbb{T}}}^{n}) to BMO(Tn){\rm{BMO}}\left({{\mathbb{T}}}^{n}) if the symbol belongs to the toroidal Hörmander class Sρ,δn(ρ−1)
Externí odkaz:
https://doaj.org/article/edc6357450c7413d97e331a026f7018e
Publikováno v:
Учёные записки Казанского университета. Серия Физико-математические науки, Vol 165, Iss 2 (2024)
Necessary and sufficient conditions for the existence of a valid Dirichlet solution were obtained. A method was developed to find Dirichlet solutions of the functional differential equation with non-delayed linear argument deviation.
Externí odkaz:
https://doaj.org/article/dbff03c343704a52949fba2549288987
Publikováno v:
Axioms, Vol 13, Iss 5, p 296 (2024)
The main aim of this article is to derive certain continuity and boundedness properties of the coupled fractional Fourier transform on Schwartz-like spaces. We extend the domain of the coupled fractional Fourier transform to the space of tempered dis
Externí odkaz:
https://doaj.org/article/bc59b8291e774784bc7611474167c24a
Publikováno v:
Fractal and Fractional, Vol 8, Iss 3, p 174 (2024)
In seismic modeling and reverse time migration (RTM), incorporating anisotropy is crucial for accurate wavefield modeling and high-quality images. Due to the trade-off between computational cost and simulation accuracy, the pure quasi-P-wave equation
Externí odkaz:
https://doaj.org/article/acc9cda8efe7477cbbc0d7474ba28f2d
Publikováno v:
Frontiers in Physics, Vol 11 (2023)
Power-law attenuation in elastic wave propagation of both compressional and shear waves can be described with multiple relaxation processes. It may be less physical to describe it with fractional calculus medium models, but this approach is useful fo
Externí odkaz:
https://doaj.org/article/c6f8340c739e475f959e8c2efac5ab64
Let $\mathcal{H}=-\Delta_{\mathbb{H}}+V$ be the Schr\"odinger operator on the Heisenberg group $\mathbb{H}^n$, where $\Delta_{\mathbb{H}}$ is the full laplacian on $\mathbb{H}^n$ and $V$ is a positive smooth potential, bounded below and grows like $|
Externí odkaz:
http://arxiv.org/abs/1903.01163
Autor:
Yang Yanqi, Tao Shuangping
Publikováno v:
Open Mathematics, Vol 20, Iss 1, Pp 1337-1352 (2022)
We obtain a class of commutators of bilinear pseudo-differential operators on products of Hardy spaces by applying the accurate estimates of the Hörmander class. And we also prove another version of these types of commutators on Herz-type spaces.
Externí odkaz:
https://doaj.org/article/22df6f5088584e5a9cedb772ad80b134
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