source: git/doc/COPYING.texi @ 420998

@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 using the
registration form on the @sc{Singular} homepage
              @uref{http://www.singular.uni-kl.de}.
If for some reason you cannot access the registration form, you
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/how_to_cite.html}.

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 surfex (used by surfex.lib, @pxref{surfex_lib})
@copyright{} Oliver Labs (2001-2008), Stephan Holzer (2004-2005)
@* @uref{http://surfex.AlgebraicSurface.net}
@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 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 4ti2 (used by sing4ti2.lib, @pxref{sing4ti2_lib})
@uref{http://www.4ti2.de/}
@end table
@end ifset

@heading Acknowledgements

The development of @sc{Singular} is directed and coordinated by
Gert-Martin Greuel, Gerhard Pfister, and Hans Sch@"onemann.

@cindex Contributors
@cindex Authors
@cindex Greuel, Gert-Martin
@cindex Pfister, Gerhard
@cindex Sch@"onemann, Hans

Currently, the @sc{Singular} team has the following members:
Michael Brickenstein,
Wolfram Decker,
Alexander Dreyer,
Gert-Martin Greuel,
Anne Fr@"uhbis-Kr@"uger,
Viktor Levandovskyy,
Oleksandr Motsak,
Gerhard Pfister,
Hans Sch@"onemann,
Mathias Schulze,
and
Frank Seelisch.
@cindex Brickenstein, Michael
@cindex Decker, Wolfram
@cindex Dreyer, Alexander
@cindex Fr@"uhbis-Kr@"uger, Anne
@cindex Levandovskyy, Viktor
@cindex Motsak, Oleksandr 
@cindex Schulze, Mathias
@cindex Seelisch, Frank

Former members of the @sc{Singular} team are:
Olaf Bachmann,
Kai Kr@"uger,
Christoph Lossen,
Wolfgang Neumann,
Markus Perling,
Wilfred Pohl,
Jens Schmidt,
Thomas Siebert,
R@"udiger Stobbe,
Eric Westenberger,
Tim Wichmann,
and
Oliver Wienand.
@cindex Bachmann, Olaf
@cindex Kr@"uger, Kai
@cindex Lossen, Christoph
@cindex Neumann, Wolfgang
@cindex Perling, Markus
@cindex Pohl, Wilfred
@cindex Schmidt, Jens
@cindex Schulze, Mathias
@cindex Siebert, Thomas
@cindex Stobbe, R@"udiger
@cindex Westenberger, Eric
@cindex Wichmann, Tim
@cindex Wienand, Oliver

Further contributions to @sc{Singular} have been made by:
Daniel Andres,
Thomas Bayer,
Isabelle Bermejo,
Markus Becker,
Stanislav Bulygin,
Nadine Cremer,
Michael Cuntz,
Kai Dehmann,
Marcin Dumnicki,
Stephan Endra@ss{},
Jose Ignacio Farran,
I. Garcia-Marco,
Vladimir Gerdt,
Philippe Gimenez,
Christian Gorzel,
Hubert Grassmann,
Amir Hashemi,
Fernando Hernando,
Agnes Heydtmann,
Dietmar Hillebrand,
Tobias Hirsch,
Markus Hochstetter,
Manuel Kauers,
Simon King,
Anen Lakhal,
Martin Lamm,
Santiago Laplagne,
Gregoire Lecerf,
Francisco Javier Lobillo,
Christoph Mang,
Thomas Markwig,
Bernd Martin,
Michael Me@ss{}ollen,
Andrea Mindnich,
Jorge Martin Morales,
Thomas N@"u@ss{}ler,
Tetyana Povalyaeva,
Carlos Rabelo,
J.-J. Salazar-Gonzalez,
Alfredo Sanchez-Navarro,
Ivor Saynisch,
Kristina Schindelar,
Silke Spang,
Stefan Steidel,
Henrik Strohmayer,
Christian Stussak,
Imade Sulandra,
Akira Suzuki,
Christine Theis,
Enrique Tobis,
Maryna Viazovska,
Alberto Vigneron-Tenorio,
Moritz Wenk,
Denis Yanovich,
Oleksandr Iena.
@cindex Andres, Daniel
@cindex Bayer, Thomas
@cindex Bermejo, Isabelle
@cindex Becker, Markus 
@cindex Bulygin, Stanislav
@cindex Cremer, Nadine
@cindex Cuntz, Michael
@cindex Dehmann, Kai
@cindex Dumnicki, Marcin
@cindex Endra@ss{}, Stephan
@cindex Farran, Jose Ignacio
@cindex Garcia-Marco, I.
@cindex Gerdt, Vladimir 
@cindex Gimenez, Philippe
@cindex Gorzel, Christian
@cindex Grassmann, Hubert
@cindex Hashemi, Amir
@cindex Hernando, Fernando 
@cindex Heydtmann, Agnes
@cindex Hillebrand, Dietmar
@cindex Hirsch, Tobias
@cindex Hochstetter, Markus
@cindex Iena, Oleksandr
@cindex Kauers, Manuel
@cindex King, Simon
@cindex Lakhal, Anen
@cindex Lamm, Martin
@cindex Laplagne, Santiago
@cindex Lecerf, Gregoire
@cindex Lobillo, Javier
@cindex Mang, Christoph
@cindex Markwig, Thomas
@cindex Martin, Bernd
@cindex Me@ss{}ollen, Michael
@cindex Mindnich, Andrea
@cindex Morales, Jorge Martin
@cindex N@"u@ss{}ler, Thomas
@cindex Povalyaeva, Tetyana
@cindex Rabelo, Carlos
@cindex Salazar-Gonzalez, J.-J.
@cindex Sanchez-Navarro, Alfredo 
@cindex Saynisch, Ivor
@cindex Schindelar, Kristina
@cindex Spang, Silke
@cindex Steidel, Stefan
@cindex Strohmayer, Henrik
@cindex Stussak, Christian
@cindex Sulandra, Imade
@cindex Suzuki, Akira
@cindex Tobis, Enrique
@cindex Theis, Christine 
@cindex Viazovska, Maryna
@cindex Vigneron-Tenorio, Alberto
@cindex Wenk, Moritz
@cindex Yanovich, Denis

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.