Fabrizio Zanello, Partial Derivatives of a Generic Subspace of a Vector Space of Forms: Quotients of Level Algebras of Arbitrary Type, Transactions of the American Mathematical Society, Vol. 359, No.

Two weeks ago, a modest-looking paper was uploaded to the arXiv preprint server with the unassuming title On the invariant subspace problem in Hilbert spaces. The paper is just 13 pages long and ...