Invariant of a binary form: Difference between revisions

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Covariants of two quartics: Expanding article
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==Invariants of several binary forms==
 
The covariants of a binary form are essentially the same as joint invariants of a binary form and a binary linear form. More generally, on can ask for the joint invariants (and covariants) of any collection of binary forms. Some cases that have been studied are listed below.
 
===Covariants of two linear forms===