This package was debianised by Ben Burton <email@example.com> on
Mon, 1 Oct 2001 20:44:04 -0500.
It was downloaded from http://regina-normal.github.io/.
The primary developers of Regina are:
Benjamin Burton <firstname.lastname@example.org>
Ryan Budney <email@example.com>
William Pettersson <firstname.lastname@example.org>
Many others have been of assistance with this project, be it through time,
knowledge, testing or code. Please see the full list of acknowledgements
in the users' handbook.
Regina - Software for low-dimensional topology
Copyright (c) 1999-2016, The Regina development team
If you find Regina useful in your research, please consider citing it as
you would any other paper that you use. A suggested form of reference is:
Benjamin A. Burton, Ryan Budney, William Pettersson, et al.,
"Regina: Software for low-dimensional topology",
COPYING AND MODIFICATION:
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; either version 2 of the License, or (at your
option) any later version.
Some of this code comes with additional permissions; see the section
below regarding online distribution.
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.
A full copy of the GNU General Public License should be included below;
if not, write to the Free Software Foundation, Inc., 51 Franklin St,
Fifth Floor, Boston, MA 02110-1301, USA.
Regina's own source code comes with the following permissions in
addition to the GNU General Public License:
As an exception, when this program is distributed through (i) the
App Store by Apple Inc.; (ii) the Mac App Store by Apple Inc.; or
(iii) Google Play by Google Inc., then that store may impose any
digital rights management, device limits and/or redistribution
restrictions that are required by its terms of service.
Some third-party libraries included in Regina are not granted this
exception, and must be removed from any build that is distributed on
stores that cannot comply with the GNU General Public License (such as
Apple's App Store). See the third-party licenses below for details.
SNAPPEA AND SNAPPY:
Regina includes portions of the SnapPea kernel and its successor SnapPy,
which it uses for some geometric calculations. The SnapPea kernel was
originally written by Jeff Weeks. SnapPy, where this kernel is now
maintained, is primarily developed by Marc Culler and Nathan Dunfield,
with contributions from many people. SnapPy and the corresponding SnapPea
kernel are distributed under the terms of the GNU General Public License,
version 2 or any later version, as published by the Free Software Foundation.
Regina includes a copy of libnormaliz, which it uses to help with the
enumeration of fundamental normal surfaces. Normaliz was written by Winfried
Bruns, Bogdan Ichim and Christof Soeger. It is distributed under the terms of
the GNU General Public License as published by the Free Software Foundation,
either version 3 of the License, or (at your option) any later version.
Regina includes snippets of code from Orb, for use in importing and
exporting files in Orb / Casson format. Orb is based on SnapPea
(see above) with additional code written by Damian Heard, who has also
given permission for his code to be distributed under the terms of the
GNU General Public License.
Regina's graphical user interface includes the PythonSyntaxHighlighter class
by Frankie Simon and others, which it uses for highlighting Python scripts.
This class is distributed under the X11 license.
The Oxygen icons are dual-licensed under the Creative Common Attribution-
ShareAlike 3.0 License or the GNU Library General Public License.
The python icons are based on applications-python.svg as shipped with the
humanity-icon-theme package in Ubuntu 11.04, the contents of which
are licensed under the GNU General Public License version 2.
The die icon is based on an image from openclipart.org, which has been
released into the public domain.
On Debian GNU/Linux systems, the complete text of the GNU General
Public License can be found in `/usr/share/common-licenses/GPL'.