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Báo cáo toán học: " Positive periodic solutions for neutral multi-delay logarithmic population model"

Tuyển tập các báo cáo nghiên cứu khoa học ngành toán học được đăng trên tạp chí toán học quốc tế đề tài: Positive periodic solutions for neutral multi-delay logarithmic population model | 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. Positive periodic solutions for neutral multi-delay logarithmic population model Journal of Inequalities and Applications 2012 2012 10 doi 10.1186 1029-242X-2012-10 Mei-Lan Tang csutmlang@163.com Xian-Hua Tang tangxh@mail.csu.edu.cn ISSN 1029-242X Article type Research Submission date 7 March 2011 Acceptance date 16 January 2012 Publication date 16 January 2012 Article URL http www.journalofinequalitiesandapplications.com 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 www.journalofinequalitiesandapplications.com authors instructions For information about other SpringerOpen publications go to http www.springeropen.com 2012 Tang and Tang licensee Springer. This is an open access article distributed under the terms of the Creative Commons Attribution License http creativecommons.org licenses by 2.0 which permits unrestricted use distribution and reproduction in any medium provided the original work is properly cited. Positive periodic solutions for neutral multi-delay logarithmic population model Mei-Lan Tang and Xian-Hua Tang School of Mathematical Science and Computing Technology Central South University Changsha 410083 China Corresponding author csutmlang@163.com Email address XHT tangxh@mail.csu.edu.cn Abstract Based on an abstract continuous theorem of k-set contractive operator and some analysis skill a new result is obtained for the existence of positive periodic solutions to a neutral multidelay logarithmic population model. Some sufficient conditions obtained in this article for the existence of positive periodic .