Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: Erratum Correction to “Fixed Points of Maps of a Nonaspherical Wedge” | Hindawi Publishing Corporation Fixed Point Theory and Applications Volume 2010 Article ID 820265 2 pages doi 2010 820265 Erratum Correction to Fixed Points of Maps of a Nonaspherical Wedge Seungwon Kim 1 Robert F. Brown 2 Adam Ericksen 3 Nirattaya Khamsemanan 4 and Keith Merrill5 1 Department of Mathematics Kyungsung University Busan 608-736 Republic of Korea 2 Department of Mathematics University of California Los Angeles Los Angeles CA 90095 USA 3 Department of Mathematics University of Southern California Los Angeles CA 90089 USA 4 Sirindhorn International Institute of Technology Thammasat University Pathum Thani 12121 Thailand 5 Department of Mathematics Brandeis University Waltham MA 02453 USA Correspondence should be addressed to Robert F. Brown rfb@ Received 21 June 2010 Accepted 17 July 2010 Copyright 2010 Seungwon Kim et al. This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use distribution and reproduction in any medium provided the original work is properly cited. In the original paper it was assumed that a selfmap of X P 7 C the wedge of a real projective space P and a circle C is homotopic to a map that takes P to itself. An example is presented of a selfmap of X that fails to have this property. However all the results of the paper are correct for maps of the pair X P . Let X P V C be the wedge of the real projective plane P and the circle C. As the example below demonstrates the statement on page 3 of 1 Given a map f X X we may deform f by a homotopy so that fP its restriction to P maps P to itself. is incorrect. If instead of an arbitrary self-map of X we consider a map of pairs f X P X P the map can be put in the standard form defined on that page and then all the results of the paper are correct for such maps of pairs. To describe the example represent points x of the unit 2-sphere S2 by spherical coordinates x r 1 0 Ộ where r denotes the radius 0 the elevation
