On double Danielewski surfaces and the Cancellation Problem
Journal of Algebra
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.
Gupta, Neena and Sen, Sourav, "On double Danielewski surfaces and the Cancellation Problem" (2019). Journal Articles. 728.