In mathematics, a quippian is a degree 5 class 3 contravariant of a plane cubic introduced by and discussed by . In the same paper Cayley also introduced another similar invariant that he called the pippian, now called the
Cayleyan In algebraic geometry, the Cayleyan is a variety associated to a hypersurface
In geometry, a hypersurface is a generalization of the concepts of hyperplane, plane curve, and surface. A hypersurface is a manifold or an algebraic variety of dimension ...
.
See also
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Glossary of classical algebraic geometry
The terminology of algebraic geometry changed drastically during the twentieth century, with the introduction of the general methods, initiated by David Hilbert and the Italian school of algebraic geometry in the beginning of the century, and later ...
References
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*{{Citation , authorlink=Igor Dolgachev , last1=Dolgachev , first1=Igor V. , title=Classical Algebraic Geometry: a modern view , url=http://www.math.lsa.umich.edu/~idolga/CAG.pdf , publisher=
Cambridge University Press
Cambridge University Press is the university press of the University of Cambridge. Granted letters patent by Henry VIII of England, King Henry VIII in 1534, it is the oldest university press
A university press is an academic publishing hou ...
, isbn=978-1-107-01765-8 , year=2012
Algebraic geometry
Invariant theory