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mathematical software for low-dimensional topology


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, it offers a range of combinatorial and algebraic tools, plus support for normal hypersurfaces.

Regina comes with a full graphical user interface, as well as Python bindings and a low-level C++ programming interface.

This package includes the graphical user interface and the command-line Python interface. The users' handbook and the API documentation are in the separate package regina-normal-doc, and the MPI-enabled utilities for high-performance clusters are in the separate package regina-normal-mpi.

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46126 other people were interested in this package here. The newest known version of this software is 5.1-2 (Information last updated about 20 hours ago.)