Let X be an anisotropic projective quadric over a field F of characteristic not 2. The essential dimension dimes(X) of X, as defined by Oleg Izhboldin, is dimes(X) = dim(X)− i(X) + 1 , where i(X) is… (More)

Measurements of the kinematic distributions of J/ψ mesons produced in p−C, p−Ti and p−W collisions at √ s = 41.6 GeV in the Feynman-x region −0.34 < xF < 0.14 and for transverse momentum up to pT =… (More)

The topological filtration on K ′ 0 of a Severi-Brauer variety is computed if the quotient of its index and exponent is a squarefree number and for each prime p dividing this quotient the p -primary… (More)

For any central simple algebra, the Grothendieck Chow-motive of the corresponding Severi-Brauer variety is decomposed in a direct sum where each summand is a twisted motive of the Severi-Brauer… (More)

We prove the so-called Unitary Isotropy Theorem, a result on isotropy of a unitary involution. The analogous previously known results on isotropy of orthogonal and symplectic involutions as well as… (More)

We show that the Chow group Ch of a non-singular projective quadric has no torsion if dimension of the quadric is greater than 10 (while a non-trivial torsion appears for a certain 10-dimensional… (More)

Disclaimer/Complaints regulations If you believe that digital publication of certain material infringes any of your rights or (privacy) interests, please let the Library know, stating your reasons.… (More)

We report on a search for the flavor-changing neutral current decay D0 → μ+μ− using 50 × 106 events recorded with a dimuon trigger in interactions of 920 GeV protons with nuclei by the HERA-B… (More)

Inclusive doubly differential cross sections d2σpA/dxF dp 2 T as a function of Feynman-x (xF ) and transverse momentum (pT ) for the production of K 0 S, Λ and Λ̄ in proton-nucleus interactions at… (More)