M. Matuszewski, B. A. Malomed, and M. Trippenbach Institute of Theoretical Physics, Physics Department, Warsaw University, Hoża 69, PL-00-681 Warsaw, Poland Department of Interdisciplinary Sciences, School of Electrical Engineering, Faculty of Engineering, Tel Aviv University, Tel Aviv 69978, Israel Soltan Institute for Nuclear Studies, Hoża 69, PL-00-681 Warsaw, Poland Received 9 October 2006;...

1 Spectrum Sharing Games of Network Operators and Cognitive Radios Mohammad Hossein Manshaei, Márk Félegyházi, Julien Freudiger, Jean-Pierre Hubaux, Peter Marbach . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 1.

Chair: Meeta Co-Chairs: Leela Digumarti, Neelam Agarwal, Nirmala Vaze, Rashmi Shah, Sonia Malik. Advisory Board: Asha Kapadia, Atul Munshi, Duru Shah, Rama Vaidya, Saroj Srivastava, Sonia Malik, Sunila Khandelwal, Urvashi Prasad Jha. External Review Board: Anita Gadgil, Dayasagar, G R Sridhar, Hema Divakar, P K Shah, Rakesh Sahay, Sanjay Kalra. Resource Faculty: Alka Kumar, Anil Mahajan, Ani...

Emilia Witkowska, Paweł Ziń, and Mariusz Gajda Institute of Physics, Polish Academy of Sciences, al. Lotników, 02-668 Warsaw, Poland Institute for Theoretical Physics, Warsaw University, ul. Hoża 69, 00-681 Warsaw, Poland Soltan Institute for Nuclear Studies, ul. Hoża 69, 00-681 Warsaw, Poland Faculty of Mathematics and Natural Sciences, College of Sciences, Cardinal’s Stefan Wyszyński Universi...

This is a comprehensive survey on an interesting problem in combinatorial geometry first proposed by Erdös. The last most thorough survey in this area was by Morris and Soltan [20]. There has been a significant development in this area after this. In this survey, we present problems regarding point sets with (i) convex empty polygons and (ii) point subsets having a specified number of interior ...