Volumes of images of varieties in projective space and in Grassmannians
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- by H. Alexander PDF
- Trans. Amer. Math. Soc. 189 (1974), 237-249 Request permission
Abstract:
If V is a complex analytic subvariety of pure dimension k in the unit ball in ${{\mathbf {C}}^n}$ which does not contain the origin, then the 2k-volume of V equals the measure computed with multiplicity of the set of $(n - k)$-complex subspaces through the origin which meet V. The measure of this set computed without multiplicity is a smaller quantity which is nevertheless bounded below by a number depending only on the distance from V to the origin. As an application we characterize normal families in the unit ball as those families of analytic functions whose restrictions to each complex line through the origin are normal. The complex analysis which we shall need will be developed in the context of uniform algebras.References
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Additional Information
- © Copyright 1974 American Mathematical Society
- Journal: Trans. Amer. Math. Soc. 189 (1974), 237-249
- MSC: Primary 32C30; Secondary 32E25
- DOI: https://doi.org/10.1090/S0002-9947-1974-0357850-9
- MathSciNet review: 0357850