学術雑誌論文 A natural approach to the asymptotic mean value property for the p-Laplacian

Ishiwata, Michinori  ,  Magnanini, Rolando  ,  Wadade, Hidemitsu

56 ( 4 )  , p.97 , 2017-08-01 , Springer New York LLC
ISSN:0944-2669
NII書誌ID(NCID):AA10848617
内容記述
Let 1 ≤ p≤ ∞. We show that a function u∈ C(RN) is a viscosity solution to the normalized p-Laplace equation Δpnu(x)=0 if and only if the asymptotic formula (Formula Presented.) holds as ε→ 0 in the viscosity sense. Here, μp(ε, u) (x) is the p-mean value of u on Bε(x) characterized as a unique minimizer of (Formula Presented.) with respect to λ∈ R. This kind of asymptotic mean value property (AMVP) extends to the case p= 1 previous (AMVP)’s obtained when μp(ε, u) (x) is replaced by other kinds of mean values. The natural definition of μp(ε, u) (x) makes sure that this is a monotonic and continuous (in the appropriate topology) functional of u. These two properties help to establish a fairly general proof of (AMVP), that can also be extended to the (normalized) parabolic p-Laplace equation. © 2017, Springer-Verlag Berlin Heidelberg.
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