Some P.V.-equivalences and a classification of 2-simple prehomogeneous vector spaces of type ๐ผ๐ผ
Some P.V.-equivalences and a classification of 2-simple prehomogeneous vector spaces of type ๐ผ๐ผ
A classification of <inline-formula content-type="math/mathml"> <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" alttext="2"> <mml:semantics> <mml:mn>2</mml:mn> <mml:annotation encoding="application/x-tex">2</mml:annotation> </mml:semantics> </mml:math> </inline-formula>-simple prehomogeneous vector spaces is completed by using some P.V.-equivalences together with [<bold>3</bold>]. Some part is very different from the previous classification of the irreducible or simple cases [<bold>1</bold>, <bold>2</bold>], and some new method is necessary. โฆ