Cubic surface: deformation of an A5 singularity to an A4 singularity @davidamadore

Cubic surface: deformation of an A5 singularity to an A4 singularity @davidamadore

Uploaded December 2010 | Updated September 2026, 2 weeks ago

A cubic surface with a A5 singularity being deformed to one with an A4 singularity. The A5 singularity occurs at 3ʺ and 9ʺ in the video.

From the cubic surfaces DVD, madore.org/cubic-dvd

Cubic surface: deformation of an A5 singularity to an A4 singularity

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Between the horizons of a Kerr black hole (the lazy geodesic)

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Cubic surface: deformation of an A5 singularity to an A4 singularity