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Existence of weak solutions for parabolic equations involving the p(x,t)-Laplacian with non-continuous, unbounded p
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Resumo(s)
We consider a parabolic equation involving the p(x,t)-Laplacian as a prime term in a time-space cylinder QT := Ω × (0,T) ⊂ Rd ×R,d≥ 2. We assume that p(x,t): QT → (1,+∞) is a continuous function, except in a closed set of zero measure. Under the assumption that p is unbounded, such that 1 < infK×(δ,T)p(x,t) ≤ supK× (δ,T) p(x,t) < ∞ for every compact set K ⊂ Ω and δ ∈ (0,T), we prove the existence of a weak solution to the corresponding initial- and boundary-value problem for any given initial velocity in L2(Ω). © 2026 Elsevier Inc. All rights are reserved, including those for text and data mining, AI training, and similar technologies.
Descrição
Palavras-chave
Existence of weak solutions Lipschitz truncation¸ Local minty lemma Compactness lemma
Contexto Educativo
Citação
Editora
Elsevier
Licença CC
Sem licença CC