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John Zek.'s user avatar
John Zek.'s user avatar
John Zek.'s user avatar
John Zek.
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Normality of certain subrings of polynomial rings in characteristic p
Thank you again, clearly I've been making a silly mistake.
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Normality of certain subrings of polynomial rings in characteristic p
Thank you, I forgot to add that Z is graded subalgebra, I hope this at least saves the question for Z=k[f].
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Normality of certain subrings of polynomial rings in characteristic p
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Normality of certain subrings of polynomial rings in characteristic p