The Automorphism Group of Certain Factorial Threefolds and a Cancellation Problem

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The automorphism groups of certain factorial complex affine threefolds admitting locally trivial actions of the additive group are determined. As a consequence new counterexamples to a generalized cancellation problem are obtained.
To appear in Isr. J. Math

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Algebraic Geometry, Commutative Algebra, 13N15,13A50,14R20

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http://salesiana.dossiersoluciones.com/handle/123456789/132608

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/0706.4187
 http://arxiv.org/abs/0706.4187

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arXiv