A292755 Essential dimension of the set of isomorphism classes of nondegenerate quadratic forms of dimension 2n with trivial discriminant and trivial Clifford invariant over a field of characteristic different from 2.

0, 0, 4, 4, 6, 7, 23, 103, 326, 793

Offset

2,3

References

A. Merkurjev, Essential dimension, Quadratic forms-algebra, arithmetic, and geometry (R. Baeza, W. K. Chan, D. W. Hoffmann, and R. Schulze-Pillot, eds.), Contemp. Math., vol. 493, 2009, pp. 299-325.

Links

Table of n, a(n) for n=2..11.

Alexander S. Merkurjev, Essential dimension, Bull. Amer. Math. Soc., 54 (Oct. 2017), 635-661.

Crossrefs

Cf. A280191.

Sequence in context: A006672 A107287 A240119 * A294021 A200267 A273308

Adjacent sequences: A292752 A292753 A292754 * A292756 A292757 A292758

Keyword

nonn,more

Author

N. J. A. Sloane, Sep 25 2017

Status

approved