Ultradistributions on $\mathbb R_{+}^{n}$. Solvability and hypoellipticity through series expansions of ultradistributions

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Autori principali: Pilipović, Stevan, Vučković, Đorđe
Natura: Preprint
Pubblicazione: 2024
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author Pilipović, Stevan
Vučković, Đorđe
author_facet Pilipović, Stevan
Vučković, Đorđe
contents In the first part we analyze space $\mathcal G^*(\mathbb R^{n}_+)$ and its dual through Laguerre expansions when these spaces correspond to a general sequence $\{M_p\}_{p\in\mathbb N_0}$, where $^*$ is a common notation for the Beurling and Roumieu cases of spaces. In the second part we are solving equation of the form $Lu=f,\; L=\sum_{j=1}^ka_jA_j^{h_j}+cE^{d}_y+bP(x,D_x),$ where $f$ belongs to the tensor product of ultradistribution spaces over compact manifolds without boundaries as well as ultradistribution spaces on $\mathbb R^n_+$ and $\mathbb R^m$; $A_j, j=1,...,k$, $E_y$ and $P(x,D_x)$ are operators whose eigenfunctions form orthonormal basis of corresponding $L^2-$space. The sequence space representation of solutions enable us to study the solvability and the hypoellipticity in the specified spaces of ultradistributions.
format Preprint
id arxiv_https___arxiv_org_abs_2408_02422
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Ultradistributions on $\mathbb R_{+}^{n}$. Solvability and hypoellipticity through series expansions of ultradistributions
Pilipović, Stevan
Vučković, Đorđe
Functional Analysis
Analysis of PDEs
46F05, 35B65, 35H10
In the first part we analyze space $\mathcal G^*(\mathbb R^{n}_+)$ and its dual through Laguerre expansions when these spaces correspond to a general sequence $\{M_p\}_{p\in\mathbb N_0}$, where $^*$ is a common notation for the Beurling and Roumieu cases of spaces. In the second part we are solving equation of the form $Lu=f,\; L=\sum_{j=1}^ka_jA_j^{h_j}+cE^{d}_y+bP(x,D_x),$ where $f$ belongs to the tensor product of ultradistribution spaces over compact manifolds without boundaries as well as ultradistribution spaces on $\mathbb R^n_+$ and $\mathbb R^m$; $A_j, j=1,...,k$, $E_y$ and $P(x,D_x)$ are operators whose eigenfunctions form orthonormal basis of corresponding $L^2-$space. The sequence space representation of solutions enable us to study the solvability and the hypoellipticity in the specified spaces of ultradistributions.
title Ultradistributions on $\mathbb R_{+}^{n}$. Solvability and hypoellipticity through series expansions of ultradistributions
topic Functional Analysis
Analysis of PDEs
46F05, 35B65, 35H10
url https://arxiv.org/abs/2408.02422