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SUMMARY:Alessandro De Stefani (Università di Genova)
DTSTART:20220415T120000Z
DTEND:20220415T130000Z
DTSTAMP:20260423T021033Z
UID:VCAS/130
DESCRIPTION:Title: <a href="https://researchseminars.org/talk/VCAS/130/">A
  uniform Chevalley theorem for direct summands in mixed characteristic</a>
 \nby Alessandro De Stefani (Università di Genova) as part of IIT Bombay V
 irtual Commutative Algebra Seminar\n\n\nAbstract\nLet R be a graded direct
  summand of a positively graded polynomial ring over the p-adic integers. 
 We exhibit an explicit constant D such that\, for any positive integer n a
 nd any homogeneous prime ideal Q of R\, the Dn-th symbolic power of Q is c
 ontained in the n-th power of the homogeneous maximal ideal (p)R + R_+. Th
 e strategy relies on the introduction of a new type of differential powers
 \, which do not require the existence of a p-derivation on R. The talk wil
 l be based on joint work with E. Grifo and J. Jeffries.\n
LOCATION:https://researchseminars.org/talk/VCAS/130/
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