activity
20092026
most citedA cohomological classification of vector bundles on smooth affine threefolds

53 citations · 322 across the 36 of their papers we have counts for

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7 papers · 1 filter

math.AC2015

On the number of generators of ideals in polynomial rings

Jean Fasel

Let be a smooth affine algebra over an infinite perfect field . Let be an ideal, a surjective homomorphism and $Q_{2n}\subset \mathbb{A}^…

math.AC2011

Mennicke symbols, K-cohomology and a Bass-Kubota theorem

Jean Fasel

If A is a smooth algebra of dimension d (greater or equal to 2) over a perfect field k of characteristic different from 2, then we show that the universal Mennicke symbol of length…

math.AC2011★ 43 cited

On stably free modules over affine algebras

Jean Fasel, Richard G. Swan, Ravi A. Rao

We prove that stably free modules of rank d-1 over a smooth affine algebra of dimension d over an algebraically closed field k are free, provided (d-1)! is nonzero in k.

math.AC2011★ 4 cited

A degree map on unimodular rows

Jean Fasel

We associate to any endomorphism of the punctured affine space over some field an element in the Witt group of the base field that we call degree. We use this degree to give a coun…

math.AC2009★ 9 cited

Stably free modules over smooth affine threefolds

Jean Fasel

We prove that the stably free modules over a smooth affine threefold over an algebraically closed field of characteristic different from 2 are free.

math.AC2009

Projective modules over the real algebraic sphere of dimension 3

Jean Fasel

We show that all the projective modules over the coordinate ring of the real algebraic sphere of dimension 3 are free

math.AC2009

Some remarks on orbit sets of unimodular rows

Jean Fasel

We give a cohomological interpretation of orbit sets of unimodular rows of length d+1 over smooth algebras of Krull dimension d.