A singular minimizer of a smooth strongly convex functional in three dimensions
A singular minimizer of a smooth strongly convex functional in three dimensions
复制标题
三维光滑强凸函数的奇异最小化
DOI:
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发表时间:
2000
期刊:
影响因子:
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通讯作者:
Xiaodong Yan
中科院分区:
文献类型:
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作者:
V. Sverák;Xiaodong Yan
We recall thatf is said to be strongly convex if there exists a constant ν > 0, such that for allξ ∈ Mm×n, X ∈ Mm×n, the inequalityf pαp j β (X)ξi αξ j β ≥ ν|ξ|2 holds. Here and in what follows we will be using Einstein’s summation convention. We shall consider the regularity of minimizers of I in W 1,2(Ω). Here by a minimizer we mean a function u ∈ W 1,2(Ω) such that for any smooth functionφ : Ω → Rm compactly supported in Ω the inequalityI(u+φ) ≥ I(u) holds. Whenf satisfies(∗), it is not difficult to see that u is a minimizer