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arXiv · 2610.06659

The $L^1$-realization of an elliptic operator with unbounded coefficients

Sallah Eddine Boutiah
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Abstract

We establish an $L^1$-theory for a class of elliptic operators with unbounded coefficients, extending the semigroup generation results of Boutiah et al. (J. Differential Equations 264 (2018), 2184--2204) and Canale et al. (Ann. Sc. Norm. Super. Pisa Cl. Sci. (5) 16 (2016), 581--601) to the endpoint $p=1$. The $L^1$-realization generates a positive analytic $C_0$-semigroup that is compact for every positive time. We characterize the generator domain through weighted estimates and prove consistency with the corresponding $L^p$-semigroups for $1<p<\infty$.

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Sallah Eddine Boutiah. 2026-10-05. The $L^1$-realization of an elliptic operator with unbounded coefficients. https://arxiv.org/abs/2610.06659

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