@comment -*-texinfo-*- @comment $Id$ @comment this file contains the copyright notice on Singular @ifclear VERSION @include version.texi @end ifclear @cindex copyright @cindex factory @cindex GMP @cindex MP @cindex NTL @cindex readline @cindex libfac @cindex surfex @cindex surfer @cindex graphviz @cindex normaliz @center @sc{Singular} version @value{VERSION} @center @uref{http://www.uni-kl.de/,,University of Kaiserslautern} @center @uref{http://www.mathematik.uni-kl.de/,,Department of Mathematics} and @uref{http://www.mathematik.uni-kl.de/~zca/,,Centre for Computer Algebra} @center Authors: @uref{http://www.mathematik.uni-kl.de/~greuel,,G.-M. Greuel}, @uref{http://www.mathematik.uni-kl.de/~pfister,,G. Pfister}, @uref{http://www.mathematik.uni-kl.de/~hannes,,H. Schoenemann} @center Copyright @copyright{} 1986-2010 @sp 2 @center @strong{NOTICE} This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation (version 2 or version 3 of the License). Some single files have a copyright given within the file: Singular/ndbm.* (BSD), kernel/htmlhelp.h (LGPL 2.1+) The following software modules shipped with @sc{Singular} have their own copyright: the omalloc library, the readline library, the GNU Multiple Precision Library (GMP), NTL: A Library for doing Number Theory (NTL), the Multi Protocol library (MP), the Singular-Factory library, the Singular-libfac library, surfex, and, for the Windows distributions, the Cygwin DLL and the Cygwin tools (Cygwin), and the XEmacs editor (XEmacs). Their copyrights and licenses can be found in the accompanying files COPYING which are distributed along with these packages. (Since version 3-0-3 of @sc{Singular}, all parts have GPL or LGPL as (one of) their licences.) This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA (see @uref{http://www.gnu.org/copyleft/gpl.html,,GPL}) Please send any comments or bug reports to @email{singular@@mathematik.uni-kl.de}. If you want to be informed of new releases, please register as a @sc{Singular} user by @c using the @c registration form on the @sc{Singular} homepage @c @uref{http://www.singular.uni-kl.de}. @c If for some reason you cannot access the registration form, you @c can also register by sending an email to @email{singular@@mathematik.uni-kl.de} with subject line @code{register} and body containing the following data: your name, email address, organisation, country and platform(s). For information on how to cite @sc{Singular} see @*@uref{http://www.singular.uni-kl.de/index.php/how-to-cite-singular}. You can also support @sc{Singular} by informing us about your result obtained by using @sc{Singular}. @heading Availability The latest information regarding the status of @sc{Singular} is always available from @uref{http://www.singular.uni-kl.de}. @ifset singularmanual The program @sc{Singular} and the above mentioned parts are available via anonymous ftp through the following addresses: @table @asis @item GMP, libreadline @copyright{} Free Software Foundation @* @uref{http://gmplib.org} @item MP @copyright{} Gray/Kajler/Wang, Kent State University @* @uref{http://www.symbolicnet.org/areas/protocols/mp.html} @item NTL @copyright{} Victor Shoup @* @uref{http://www.shoup.net/ntl} @item Singular-Factory @copyright{} Greuel/Stobbe, University of Kaiserslautern: @* @uref{ftp://www.mathematik.uni-kl.de/pub/Math/Singular/Factory} @item Singular-libfac @copyright{} Messollen, University of Saarbr@"ucken: @* @uref{ftp://www.mathematik.uni-kl.de/pub/Math/Singular/Libfac} @item @sc{Singular} binaries and sources @uref{ftp://www.mathematik.uni-kl.de/pub/Math/Singular/} or via a WWW brow@-ser from @uref{http://www.mathematik.uni-kl.de/ftp/pub/Math/Singular/} @item Cygwin @uref{http://www.cygwin.com/} @item Xemacs @uref{http://www.xemacs.org} @end table Some external programs are optional: @table @asis @item 4ti2 (used by sing4ti2.lib, @pxref{sing4ti2_lib}) @uref{http://www.4ti2.de/} @item gfan (used by tropical.lib, @pxref{tropical_lib}) @uref{http://www.math.tu-berlin.de/~jensen/software/gfan/gfan.html} @item graphviz (used by resgraph.lib, @pxref{resgraph_lib}) @uref{http://www.graphviz.org/} @item normaliz (used by normaliz.lib, @pxref{normaliz_lib}) @copyright{} Winfried Bruns and Bogdan Ichim @* @uref{http://www.mathematik.uni-osnabrueck.de/normaliz/} @item polymake (used by polymake.lib, @pxref{polymake_lib}) @copyright{} Ewgenij Gawrilow and Michael Joswig @* @uref{http://www.polymake.de/} @item surf (used by surf.lib, @pxref{surf_lib}) @copyright{} Stephan Endrass @* @uref{http://surf.sf.net} @item surfer (used by surf.lib, @pxref{surf_lib}) @uref{http://www.imaginary2008.de/surfer.php} @item surfex (used by surfex.lib, @pxref{surfex_lib}) @copyright{} Oliver Labs (2001-2008), Stephan Holzer (2004-2005) @* @uref{http://surfex.AlgebraicSurface.net} @item TOPCOM (used by polymake.lib, @pxref{polymake_lib}) @copyright{} J@"org Rambau @* @uref{http://www.rambau.wm.uni-bayreuth.de/TOPCOM/} @end table @end ifset @heading Acknowledgements The development of @sc{Singular} is directed and coordinated by Wolfram Decker, Gert-Martin Greuel, Gerhard Pfister, and Hans Sch@"onemann. @cindex Contributors @cindex Authors @cindex Decker, Wolfram @cindex Greuel, Gert-Martin @cindex Pfister, Gerhard @cindex Sch@"onemann, Hans Current devteams: Abdus Salam School of Mathematical Sciences in Lahore, BTU Cottbus, Center for Advanced Security Research Darmstadt (CASED), FU Berlin, Isfahan University of Technology, Mathematisches Forschunginstitut Oberwolfach, Oklahoma State University, RWTH Aachen, Universidad de Buenos Aires, Université de Versailles Saint-Quentin-en-Yvelines, University of G@"ottingen, University of Hannover, University of La Laguna and University of Valladolid. Current @sc{Singular} developers: Wolfram Decker, Gert-Martin Greuel, Gerhard Pfister, Hans Sch@"onemann, Shawki Al-Rashed, Daniel Andres, Mohamed Barakat, Isabel Bermejo, Muhammad Asan Binyamin, Ren@'e Birkner, Rocio Blanco, Xenia Bogomolec, Michael Brickenstein, Stanislav Bulygin, Antonio Campillo, Raza Choudery, Alexander Dreyer, Christian Eder, Santiago Encinas, Jose Ignacio Farran, Anne Fr@"uhbis-Kr@"uger, Rosa de Frutos, Eva Garcia-Llorente, Ignacio Garcia-Marco, Christian Haase, Amir Hashemi, Fernando Hernando, Bradford Hovinen, Nazeran Idress, Anders Jensen, Lars Kastner, Junaid Alan Khan, Kai Kr@"uger, Santiago Laplagne, Grégoire Lecerf, Martin Lee, Viktor Levandovskyy, Benjamin Lorenz, Christoph Lossen, Thomas Markwig, Hannah Markwig, Irene Marquez, Bernd Martin, Edgar Martinez, Martin Monerjan, Francisco Monserrat, Oleksandr Motsak, Andreas Paffenholz, Maria Jesus Pisabarro, Diego Ruano, Afshan Sadiq, Kristina Schindelar, Mathias Schulze, Frank Seelisch, Andreas Steenpa@ss{}, Stefan Steidel, Grischa Studzinski, Katharina Werner and Eva Zerz. Further contributions to @sc{Singular} have been made by: Martin Albrecht, Olaf Bachmann, Thomas Bauer, Markus Becker, Michael Cuntz, Kai Dehmann, Marcin Dumnicki, Stephan Endra@ss{}, Vladimir Gerdt, Philippe Gimenez, Christian Gorzel, Hubert Grassmann, Agnes Heydtmann, Dietmar Hillebrand, Tobias Hirsch, Manuel Kauers, Simon King, Anen Lakhal, Martin Lamm, Francisco Javier Lobillo, Michael Me@ss{}ollen, Andrea Mindnich, Jorge Martin Morales, Thomas N@"u@ss{}ler, Wolfgang Neumann, Markus Perling, Wilfried Pohl, Carlos Rabelo, Alfredo Sanchez-Navarro, Jens Schmidt, Thomas Siebert, William Stein, R@"udiger Stobbe, Henrik Strohmayer, Christian Stussak, Imade Sulandra, Christine Theis, Enrique Tobis, Alberto Vigneron-Tenorio, Moritz Wenk, Eric Westenberger, Tim Wichmann, Oliver Wienand, Denis Yanovich and Oleksandr Yena. We should like to acknowledge the financial support given by the Volkswagen-Stiftung, the Deutsche Forschungsgemeinschaft and the Stiftung f@"ur Innovation des Landes Rheinland-Pfalz to the @sc{Singular} project.