This is an announcement for the paper "Lebesgue classes and preparation of real constructible functions" by Raf Cluckers and Daniel J. Miller.
Abstract: We call a function constructible if it has a globally subanalytic domain and can be expressed as a sum of products of globally subanalytic functions and logarithms of positively-valued globally subanalytic functions. For any $q > 0$ and constructible functions $f$ and $\mu$ on $E\times\RR^n$, we prove a theorem describing the structure of the set of all $(x,p)$ in $E \times (0,\infty]$ for which $y \mapsto f(x,y)$ is in $L^p(|\mu|_{x}^{q})$, where $|\mu|_{x}^{q}$ is the positive measure on $\RR^n$ whose Radon-Nikodym derivative with respect to the Lebesgue measure is $y\mapsto |\mu(x,y)|^q$. We also prove a closely related preparation theorem for $f$ and $\mu$. These results relate analysis (the study of $L^p$-spaces) with geometry (the study of zero loci).
Archive classification: math.AG math.FA math.LO
Mathematics Subject Classification: 46E30, 32B20, 14P15 (Primary) 42B35, 03C64 (Secondary)
Submitted from: dmille10@emporia.edu
The paper may be downloaded from the archive by web browser from URL
http://front.math.ucdavis.edu/1209.3439
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