QUASIADDITIVITY OF RIESZ CAPACITY

QUASIADDITIVITY OF RIESZ CAPACITY
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RIESZ 容量的准可加性

DOI:
10.7146/math.scand.a-12366
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发表时间:
1991
影响因子:
0.5
通讯作者:
Hiroaki Aikawa
Hiroaki Aikawa
中科院分区:
数学4区
文献类型:
--
作者:
Hiroaki Aikawa

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如果1 < p < ∞,则{ inf{f p:kα f(x)≥ 1 on E,f ≥ 0};如果p = 1,则{inf{µ:kα µ(x)≥ 1 on E,µ ≥ 0}。由[7]可知,Rα,1(E)等于通常的(外)α-容量Cα(E)。显然Rα,p是可数次可加的,即Rα,p(E)≤ ∑ kR α,p(Ek),其中E = ∑ kEk.本文的主要目的是研究不等式Rα,p(E)≥ N ∑ k Rα,p(Ek)的分解
{ inf{∥f ∥ p : kα ∗ f (x) ≥ 1 on E, f ≥ 0} if 1 < p < ∞, inf{∥µ∥ : kα ∗ µ(x) ≥ 1 on E, µ ≥ 0} if p = 1. In view of [7] we see that Rα,1(E) is equal to the usual (outer) α-capacity Cα(E). It is obvious that Rα,p is countably subadditive, i.e. Rα,p(E) ≤ ∑ k Rα,p(Ek) with E = ∪ k Ek. The main purpose of this paper is to investigate for what decompositions the inequality Rα,p(E) ≥ N ∑ k Rα,p(Ek)