On Parameter Spaces for Artin Level Algebras
نویسندگان
چکیده
We describe the tangent space to the parameter variety of all artin level quotients of a polynomial ring in n variables having specified socle degree and type. When n = 2, we relate this variety to the family of secants of the rational normal curve. With additional numerical hypotheses, we prove a projective normality theorem for the parameter variety in its natural Plücker embedding. AMS subject classification (2000): 13A02, 14M15.
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تاریخ انتشار 2002