# Global Div-Curl lemma on bounded domains in R3

Hideo Kozono*, Taku Yanagisawa

*この研究の対応する著者

7 被引用数 (Scopus)

## 抄録

We consider a global version of the Div-Curl lemma for vector fields in a bounded domain Ω ⊂ R3 with the smooth boundary ∂Ω. Suppose that {uj}j = 1 and {vj}j = 1 converge to u and v weakly in Lr (Ω) and Lr′ (Ω), respectively, where 1 < r < ∞ with 1 / r + 1 / r = 1. Assume also that {div uj}j = 1 is bounded in Lq (Ω) for q > max {1, 3 r / (3 + r)} and that {rot vj}j = 1 is bounded in Ls (Ω) for s > max {1, 3 r / (3 + r)}, respectively. If either {uj ṡ ν |∂ Ω}j = 1 is bounded in W1 - 1 / q, q (∂ Ω), or {vj × ν |∂ Ω}j = 1 is bounded in W1 - 1 / s, s (∂ Ω) (ν: unit outward normal to ∂Ω), then it holds that ∫Ω uj ṡ vj d x → ∫Ω u ṡ v d x. In particular, if either uj ṡ ν = 0 or vj × ν = 0 on ∂Ω for all j = 1, 2, ... is satisfied, then we have that ∫Ω uj ṡ vj d x → ∫Ω u ṡ v d x. As an immediate consequence, we prove the well-known Div-Curl lemma for any open set in R3. The Helmholtz-Weyl decomposition for Lr (Ω) plays an essential role for the proof.

本文言語 English 3847-3859 13 Journal of Functional Analysis 256 11 https://doi.org/10.1016/j.jfa.2009.01.010 Published - 2009 6 1 はい

• 分析

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