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arXiv · 1908.03403

On Double Danielewski Surfaces and the Cancellation Problem

Neena Gupta·Sourav Sen
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Abstract

We study a two-dimensional family of affine surfaces which are counter-examples to the Cancellation Problem. We describe the Makar-Limanov invariant of these surfaces, determine their isomorphism classes and characterize the automorphisms of these surfaces.

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Neena Gupta, Sourav Sen. 2019-08-09. On Double Danielewski Surfaces and the Cancellation Problem. https://doi.org/10.1016/j.jalgebra.2019.05.027

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