Integral functionals that are continuous
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Robert Černý; Stanislav Hencl; Jan Kolář
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Article
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2009
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Elsevier Science
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English
⚖ 685 KB
Let Ω ⊂ R N be a bounded open set and let g: Ω × R → R be a Carathéodory function that satisfies standard growth conditions. Then the functional Φ(u) = Ω g (x, u(x)) dx is weakly continuous on W 1,p 0 (Ω), 1 ≤ p ≤ ∞, if and only if g is linear in the second variable.