Convex $SO(N) \times SO(n)$-invariant functions and refinements of von Neumann's inequality

Dacorogna, BernardMaréchal, Pierre2008-11-252008-11-252008-11-252007https://infoscience.epfl.ch/handle/20.500.14299/31730Convex $SO(N) \times SO(n)$-invariant functions and refinements of von Neumann's inequalitytext::journal::journal article::research article