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Explicit improvements for Lp‐estimates related to elliptic systems

Böhnlein, Tim ; Egert, Moritz (2024)
Explicit improvements for Lp‐estimates related to elliptic systems.
In: Bulletin of the London Mathematical Society, 56 (3)
doi: 10.1112/blms.12973
Article, Bibliographie

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Abstract

We give a simple argument to obtain Lp‐boundedness for heat semigroups associated to uniformly strongly elliptic systems on Rd by using Stein interpolation between Gaussian estimates and hypercontractivity. Our results give p explicitly in terms of ellipticity. It is optimal at the endpoint p = ∞. We also obtain Lp‐estimates for the gradient of the semigroup, where p > 2 depends on ellipticity but not on dimension.

Item Type: Article
Erschienen: 2024
Creators: Böhnlein, Tim ; Egert, Moritz
Type of entry: Bibliographie
Title: Explicit improvements for Lp‐estimates related to elliptic systems
Language: English
Date: March 2024
Place of Publication: Hoboken
Publisher: Wiley
Journal or Publication Title: Bulletin of the London Mathematical Society
Volume of the journal: 56
Issue Number: 3
DOI: 10.1112/blms.12973
Corresponding Links:
Abstract:

We give a simple argument to obtain Lp‐boundedness for heat semigroups associated to uniformly strongly elliptic systems on Rd by using Stein interpolation between Gaussian estimates and hypercontractivity. Our results give p explicitly in terms of ellipticity. It is optimal at the endpoint p = ∞. We also obtain Lp‐estimates for the gradient of the semigroup, where p > 2 depends on ellipticity but not on dimension.

Additional Information:

MSC 2020: 35J47, 47A60 (primary), 46B70 (secondary)

Classification DDC: 500 Science and mathematics > 510 Mathematics
Divisions: 04 Department of Mathematics
04 Department of Mathematics > Analysis
Date Deposited: 20 Jun 2024 11:36
Last Modified: 20 Jun 2024 11:36
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