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arXiv 2102.10088math.FA
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空间$L_1(L_p)$是$1<p<\infty$的主要空间

The space $L_1(L_p)$ is primary for $1<p<\infty$

Richard Lechner, Pavlos Motakis, Paul F. X. Müller, Thomas Schlumprecht

摘要:

经典的Banach空间$L_1(L_p)$由可测量的标量函数$f$的单位正方形,其中$$\|f\| = \int_0^1\Big(\int_0^1 |f(x,y)|^p dy\Big)^{1/p}dx < \infty.$$我们表明,$L_1(L_p)$ $(1 < p < \infty)$是主要的,这意味着,每当$L_1(L_p) = E\oplus F$然后无论是$E$或$F$是同构的$L_1(L_p)$。更一般地,我们表明,$L_1(X)$是主要的,为一大类重排不变的Banach函数空间。

英文摘要:

The classical Banach space $L_1(L_p)$ consists of measurable scalar functions $f$ on the unit square for which $$\|f\| = \int_0^1\Big(\int_0^1 |f(x,y)|^p dy\Big)^{1/p}dx < \infty.$$ We show that $L_1(L_p)$ $(1 < p < \infty)$ is primary, meaning that, whenever $L_1(L_p) = E\oplus F$ then either $E$ or $F$ is isomorphic to $L_1(L_p)$. More generally we show that $L_1(X)$ is primary, for a large class of rearrangement invariant Banach function spaces.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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