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Affine-ruled varieties without the Laurent cancellation property

Authors :
Dubouloz, Adrien
Poloni, Pierre-Marie
Publication Year :
2015

Abstract

We describe a method to construct hypersurfaces of the complex affine $n$-space with isomorphic $\mathbb{C}^*$-cylinders. Among these hypersurfaces, we find new explicit counterexamples to the Laurent Cancellation Problem, i.e. hypersurfaces that are non isomorphic, although their $\mathbb{C}^*$-cylinders are isomorphic as abstract algebraic varieties. We also provide examples of non isomorphic varieties $X$ and $Y$ with isomorphic cartesian squares $X\times X$ and $Y\times Y$.

Subjects

Subjects :
Mathematics - Algebraic Geometry

Details

Database :
arXiv
Publication Type :
Report
Accession number :
edsarx.1509.07803
Document Type :
Working Paper
Full Text :
https://doi.org/10.1112/blms/bdw045