Tuyển tập các báo cáo nghiên cứu khoa học ngành toán học được đăng trên tạp chí toán học quốc tế đề tài: The Beckenbach-Dresher inequality in the psi-direct sums of spaces and related results | Journal of Inequalities and Applications SpringerOpen0 This Provisional PDF corresponds to the article as it appeared upon acceptance. Fully formatted PDF and full text HTML versions will be made available soon. The Beckenbach-Dresher inequality in the psi-direct sums of spaces and related results Journal of Inequalities and Applications 2012 2012 7 doi 1029-242X-2012-7 Ludmila Nikolova ludmilan@ Lars-Erik Persson larserik@ Sanja Varosanec varosans@ ISSN 1029-242X Article type Research Submission date 14 July 2011 Acceptance date 12 January 2012 Publication date 12 January 2012 Article URL http content 2012 1 This peer-reviewed article was published immediately upon acceptance. It can be downloaded printed and distributed freely for any purposes see copyright notice below . For information about publishing your research in Journal of Inequalities and Applications go to http authors instructions For information about other SpringerOpen publications go to http 2012 Nikolova et al. licensee Springer. This is an open access article distributed under the terms of the Creative Commons Attribution License http licenses by which permits unrestricted use distribution and reproduction in any medium provided the original work is properly cited. The Beckenbach-Dresher inequality in the à direct sums of spaces and related results Ludmila Nikolova1 Lars-Erik Persson2 and Sanja Varosanec 3 1Department of Mathematics and Informatics Sofia University Sofia Bulgaria 2Department of Mathematics Lulea University of Technology Lulea Sweden 3Department of Mathematics University of Zagreb Zagreb Croatia Corresponding author varosans@ Email addresses LN ludmilan@ LP larserik@ SV varosans@ Abstract Let à 0 1 R be a concave function with à 0 à 1 1. There is a corresponding map . .
