Polar hypersurface
In algebraic geometry, given a projective algebraic hypersurface described by the homogeneous equation
and a point
its polar hypersurface is the hypersurface
where are the partial derivatives of .
The intersection of and is the set of points such that the tangent at to meets .
References
- Dolgachev, Igor V. (2012-08-16). Classical Algebraic Geometry: A Modern View (PDF) (1 ed.). Cambridge University Press. doi:10.1017/cbo9781139084437. ISBN 978-1-107-01765-8.
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