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Showing 2007Show all
3 papers · 1 filter
math.FA2007
A matrix subadditivity inequality for f(A+B) and f(A)+f(B)
Jean-Christophe Bourin, Mitsuru Uchiyama
Let f be a non-negative concave function on the positive half-line. Let A and B be two positive matrices. Then, for all symmetric norms, || f(A+B) || is less than || f(A)+f(B) ||.…
hep-ph2007
The constraint on the spin dependent structure function at low through the sum rule corresponding to the moment at
Susumu Koretune
The sum rules for the spin dependent structure function in the null-plane formalism corresponding to the moment at has been transformed to the sum rule which relat…
hep-ph2007
The sum rule for the polarized structure function corresponding to the moment at
Susumu Koretune, Hirofumi Kurokawa
In the small region, the sum rule for the polarized structure function corresponding to the moment at is derived. This sum rule shows that there is a tight connec…