Geodesic
The Essential Norm of a Bloch-to- ${{Q}_{p}}$ Composition Operator
Canadian mathematical bulletin, Tome 47 (2004) no. 1, pp. 49-59

Voir la notice de l'article provenant de la source Cambridge University Press

The ${{Q}_{p}}$ spaces coincide with the Bloch space for $p\,>\,1$ and are subspaces of $\text{BMOA}$ for $0\,<\,p\,\le \,1$ . We obtain lower and upper estimates for the essential norm of a composition operator from the Bloch space into ${{Q}_{p}}$ , in particular from the Bloch space into $\text{BMOA}$ .
DOI : 10.4153/CMB-2004-007-6
Mots-clés : 47B38, 47B10, 46E40, 46E15, Bloch space, little Bloch space, BMOA, VMOA, Qp spaces, composition operator, compact operator, essential norm 
Lindstróm, Mikael; Makhmutov, Shamil; Taskinen, Jari. The Essential Norm of a Bloch-to- ${{Q}_{p}}$ Composition Operator. Canadian mathematical bulletin, Tome 47 (2004) no. 1, pp. 49-59. doi: 10.4153/CMB-2004-007-6
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