eprintid: 20629 rev_number: 14 eprint_status: archive userid: 3588 dir: disk0/00/02/06/29 datestamp: 2016-03-23 07:27:12 lastmod: 2016-10-10 08:44:25 status_changed: 2016-03-23 07:27:12 type: article metadata_visibility: show title: On the one extremal problem on the Riemann sphere language: english abstract: Sharp estimates of product of inner radii for pairwise disjoint domains are obtained. In particular, we solve an extremal problem in the case of arbitrary finite number of rays containing arbitrary even number of free poles keywords: Inner radius of domain, quadratic differential, piecewise-separating transformation, Green function, radial systems of points, logarithmic capacity, variational formula creators_name: Targonskii, A. L. creators_name: Targonskaya, I. ispublished: pub subjects: QA77 divisions: sch_man full_text_status: public date: 2016 date_type: published publication: International Journal of Advanced Research in Mathematics number: 4 publisher: SciPress Ltd., Switzerland pagerange: 1-7 refereed: TRUE issn: 2297-6213 citation: Targonskii, A. L., Targonskaya, I. (2016) On the one extremal problem on the Riemann sphere. International Journal of Advanced Research in Mathematics (4). с. 1-7. ISSN 2297-6213 document_url: http://eprints.zu.edu.ua/20629/1/IJARM.4.1.pdf