Abstract
We study the local boundedness of minimizers of non uniformly elliptic integral functionals with a suitable anisotropic \(p,q-\) growth condition. More precisely, the growth condition of the integrand function \(f(x,\nabla u)\) from below involves different \(p_i>1\) powers of the partial derivatives of u and some monomial weights \(|x_i|^{\alpha _i p_i}\) with \(\alpha _i \in [0,1)\) that may degenerate to zero. Otherwise from above it is controlled by a q power of the modulus of the gradient of u with \(q\ge \max _i p_i\) and an unbounded weight \(\mu (x)\). The main tool in the proof is an anisotropic Sobolev inequality with respect to the weights \(|x_i|^{\alpha _i p_i}\).
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Acknowledgements
The authors are partially supported by GNAMPA of the Italian INdAM (National Institute of High Mathematics) through the INdAM-GNAMPA Project Project 23 “Su alcuni problemi di regolarità del Calcolo delle Variazioni con convessità degenere” and “Equazioni di diffusione e analisi geometrica” CUP\(\_\)E53C22001930001 and INdAM-GNAMPA Project 24 “Disuguaglianze analitiche e geometriche” and “Interazione ottimale tra la regolarità dei coefficienti e l’anisotropia del problema in funzionali" CUP\(\_\)E53C23001670001. A. Passarelli di Napoli has been also partially supported by the Universitá degli Studi di Napoli “Federico II” through the project FRA-000022-ALTRI-CDA-752021-FRA-PASSARELLI and by the PNNR project Centro Nazionale per la Mobilitá Sostenibile (CNMS) code CN00000023, CUP E63C22000930007 (Spoke 10 Logistica Merci). F. Feo and M. R: Posteraro have been also partially supported by "Geometric-Analytic Methods for PDEs and Applications" (GAMPA) project CUP I53D23002420006 -funded by European Union - Next Generation EU within the PRIN 2022 program (D.D. 104 - 02/02/2022 Ministero dell’Università e della Ricerca). M. R. Posteraro has been also partially supported by "Direct and inverse problems for partial differential equations: theoretical aspects and applications" project funded by Ministero dell’Università e della Ricerca within the PRIN 2017 program. This manuscript reflects only the authors’ views and opinions and the Ministry cannot be considered responsible for them.
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Communicated by Sofia Giuffre.
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Feo, F., Passarelli di Napoli, A. & Posteraro, M.R. Local Boundedness for Minimizers of Anisotropic Functionals with Monomial Weights. J Optim Theory Appl (2024). https://doi.org/10.1007/s10957-024-02432-3
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DOI: https://doi.org/10.1007/s10957-024-02432-3