<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="6.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Karlovich, Alexei Yu.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Norms of Toeplitz and Hankel operators on Hardy type subspaces of rearrangement-invariant spaces</style></title><secondary-title><style face="normal" font="default" size="100%">Integral Equations and Operator Theory</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">Boyd indices</style></keyword><keyword><style  face="normal" font="default" size="100%">Hankel operator</style></keyword><keyword><style  face="normal" font="default" size="100%">Lozanovskii factorization}</style></keyword><keyword><style  face="normal" font="default" size="100%">rearrangement-invariant space</style></keyword><keyword><style  face="normal" font="default" size="100%">{Toeplitz operator</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2004</style></year><pub-dates><date><style  face="normal" font="default" size="100%">{MAY}</style></date></pub-dates></dates><urls><web-urls><url><style face="normal" font="default" size="100%">http://link.springer.com/article/10.1007/s00020-002-1190-z</style></url></web-urls></urls><number><style face="normal" font="default" size="100%">{1}</style></number><publisher><style face="normal" font="default" size="100%">{BIRKHAUSER VERLAG AG}</style></publisher><pub-location><style face="normal" font="default" size="100%">{VIADUKSTRASSE 40-44, PO BOX 133, CH-4010 BASEL, SWITZERLAND}</style></pub-location><volume><style face="normal" font="default" size="100%">49</style></volume><pages><style face="normal" font="default" size="100%">43-64</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p&gt;We prove analogues of the Brown-Halmos and Nehari theorems on the norms of Toeplitz and Hankel operators, respectively, acting on subspaces of Hardy type of reflexive rearrangement-invariant spaces with nontrivial Boyd indices.&lt;/p&gt;
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