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math.AC2004
Another proof of global -regularity of Schubert varieties
Mitsuyasu Hashimoto
Recently, Lauritzen, Raben-Pedersen and Thomsen proved that Schubert varieties are globally -regular. We give another proof.
math.AC2004
Another proof of theorems of De Concini and Procesi
Mitsuyasu Hashimoto
We give a new proof of some characteristic-free fundamental theorems in invariant theory first proved in C. De Concini and C. Procesi, A characteristic free approach to invariant t…
math.AC2004
A pure subalgebra of a finitely generated algebra is finitely generated
Mitsuyasu Hashimoto
We prove the following. Let be a Noetherian ring, a finitely generated -algebra, and a pure -subalgebra of . Then is finitely generated over .