Regina for 3-Manifolds

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⌘支持系统: OS X 10.6.6
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This app is for research mathematicians in 3-manifold and 4-manifold topology. Have you encountered 3-manifolds and normal surfaces, or heard about the desktop software packages Regina or SnapPy? If so, then you might find this app useful. If not, but if you are curious as to what it's all about, you might like to read about the Poincaré conjecture (http://www.claymath.org/millenium-problems/poincaré-conjecture), or hunt down a copy of Jeffrey Weeks' excellent book "The Shape of Space". Regina is a software package for 3-manifold and 4-manifold topologists, with a focus on triangulations, normal surfaces, and angle structures. For 3-manifolds, it includes high-level tasks such as 3-sphere recognition, connected sum decomposition and Hakenness testing, comes with a rich database of census manifolds, and incorporates the SnapPea kernel for working with hyperbolic manifolds. For 4-manifolds, Regina offers several combinatorial and algebraic tools, as well as support for normal hypersurfaces. Advanced users can also access Regina's mathematical engine using Python scripting. This Mac App Store version is almost identical to the Mac app that you can download from the Regina website. The main difference is that it is sandboxed, which is excellent for security but which limits your ability to read and write arbitrary files from Python. If you have any questions, requests or feedback then please contact Ben or the Regina development team – see http://regina-normal.github.io/ for details.
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