This volume contains the proceedings of the international conference "Mathematics in 2004 at Kragujevac" which was held at University of Kragujevac, on June 17, 18 and 19, 2004. This meeting was organized by University of Kragujevac and its Faculty of Science. It was the first joint meeting in mathematics between University of Kragujevac and its partner universities which have the official cooperation, together with mathematicians from other universities in our country and from abroad.
Papers regarding most of the talks given at the the conference are contained in this book.
On behalf of the organizers, I would like to thank all participants for their contribution to the meeting.
I would very much like to thank Prof. dr Leopold Verstraelen of the Katholieke Universiteit Leuven (Belgium), Doctor Honoris Causa of University of Kragujevac, the Chairman of the conference, for his great help and support in creating and realizing the scientific part of the meeting.
I would like to thank the Rector, Prof. dr Mirko Rosic and Vice-rector, Prof. dr Ruzica Nikolic of University of Kragujevac, for their initiative to organize such a meeting, and their help and hospitality, including the administrative and technical personnel of University, for the excellent collaboration.
Also, as before, I would like to thank Prof. dr Srecko Trifunovic, Dean of the Faculty of Science, for his interest in this meetring and his help.
We very much thank the Ministry of Science and Environmental Protection of Republic of Serbia, for the financial support of the meeting.
We would like to express our thanks to Prof. dr Dragic Bankovic, for his help in practical organization. Also, I would like to express my sincere thanks to mr Tatjana Timotijevic, dr Emilija Nesovic, mr Marija Stanic, Ana Hinic and mr Aleksandar Sebekovic for their great help.
By this occassion, we would like to thank Eng. Zoran Torgasev, for the technical support concerning web announcements and communications.
Finally, we are very grateful to the Editors of "Kragujevac Journal of Mathematics" for publishing this proceedigs in its special Volume 28.
Prof. dr Miroslava Petrovic-Torgasev