RT Journal Article T1 On G(p)-classes of trilinear forms A1 Cobos, Fernando A1 Kuehn, Thomas A1 Peetre, Jaak AB In a previous paper, the authors laid the foundations of a theory of Schatten±von Neumann classes 'p(0!p%¢) of trilinear forms in Hilbert space. This paper continues that research. In the n-dimensionalcase, it is shown that the best constant d# that relates the Hilbert±Schmidt norm of a form with its boundednorm behaves like n. Some results are also obtained in the quasi-Banach case (0!p!1), and for twoboundedforms. Finally, the domination problem is investigated in the trilinear set-up. PB Oxford University Press SN 0024-6107 YR 1999 FD 1999 LK https://hdl.handle.net/20.500.14352/57244 UL https://hdl.handle.net/20.500.14352/57244 LA eng NO J. Bergh and J. Lo$ fstro$m, Interpolation spaces. An introduction, Grundlehren der Mathematischen Wissenschaften 223 (Springer, 1976).R. P. Boas, `Majorant problems for trigonometric series ', J. Anal. Math. 10 (1962}63) 253±271.F. Cobos and T. Ku$ hn, `On a conjecture of Barry Simon on trace ideals ', Duke Math. J. 59 (1989)295±299.F. Cobos, T. Ku$ hn and J. Peetre, `Schatten±von Neumann classes of multilinear forms', Duke Math. J. 65 (1992) 121±156.M. De!champs-Gondin, F. Lust-Picard and H. Queffelec, `On the minorant properties in Cp(H) ', Paci®c J. Math. 119 (1985) 89±101.M. Ledoux and M. Talagrand, Probability in Banach spaces, Ergebnisse der Mathematik und õ$hrer Grenzgebiete 23 (Springer, 1991).J. Peetre, `Paracommutators and minimal spaces', Operators and function theory (ed. S. C. Power; Reidel, Dordrecht, 1985) 163±224.J. Peetre, `Paracommutators ± a brief introduction, open problems', Re.. Mat. Uni.. Complut. Madrid 2 (1989) 201±211 (nu!mero suplementario).V. V. Peller, `Hankel operators of class 'p and their applications (rational approximation, gaussian processes, the problem of majorizing operators)', Math. USSR Sbornik 41 (1982) 443±479.A. Pietsch and H. Triebel, `Interpolationstheorie fu$ r Banachideale von beschra$nkten linearen Operatoren', Studia Math. 31 (1968) 95±109.B. Simon, Trace ideals and their applications (Cambridge University Press, Cambridge, 1979).B. Simon, `Pointwise domination of matrices and comparison of Cp norms', Paci®c J. Math. 97 (1981)471±475.H. Triebel, `Zur Interpolationstheorie von Normidealen in Hilbertra$umen', Wiss. Z. Uni.. Jena 18 (1969) 263±267.H. Triebel, Interpolation theory. Function spaces. Differential operators (VEB Deutscher Verlag der Wissenschaften, Berlin, 1978). NO DGICYT DS Docta Complutense RD 27 abr 2024