{
    "info": {
        "author": "Thierry Coulbois, Dominique Benielli",
        "author_email": "thierry.coulbois@univ-amu.fr",
        "bugtrack_url": null,
        "classifiers": [
            "Development Status :: 4 - Beta",
            "Intended Audience :: Science/Research",
            "License :: OSI Approved :: GNU General Public License v3 or later (GPLv3+)",
            "Programming Language :: Python :: 2.7",
            "Topic :: Scientific/Engineering :: Mathematics",
            "Topic :: Software Development :: Build Tools"
        ],
        "description": "sage-train-track\n================\n\nFree group automorphisms and train-track representative in python/sage. \n\nThis is a Sage optional package. It contains code to handle free group\nautomorphisms (inversion, composition, etc.) and to compute\ntrain-track representatives (absolute and relative, stable and\nunstable) as defined by Bestvina and Handel. This includes the\ncomputation of Nielsen paths and indices of iwip automorphisms and\nmuch more. Convex cores of pairs of tree as defined by Guirardel also\nappear.\n\nInstallation::\n\n  sage -pip install train_track\n\nWarning: it seems that Mac OS X 10.13 has a security conflict between\nSIP and SSL and does not succeed in downloading the package from\nhttps://pypi.python.org. To overcome this difficulty, just download\nthe tarball train_track-0.1.0.tar.gz from\n\n  https://pypi.python.org/simple/train_track\n\nand run::\n\n  sage -pip install /path/to/train_track-0.1.0.tar.gz\n\nWarning: if you lack intstallation privilege, you can install only for\nyourself::\n\n  sage -pip install --user train_track\n  \nOn Cocalc.com installation can be done either from a terminal as above\nor from a cell::\n\n  !sage -pip install train_track\n\nWarning, Cocalc free accounts do not have access to internet, first\ndownload the tarball then install.\n  \nUsage::\n\n    sage: from train_track import *\n\n\nAfter this command, you can play with free groups and their automorphisms::\n\n    sage: FreeGroup('a,b,c')\n    Free Group on generators {a, b, c}\n    sage: FreeGroupAutomorphism('a->bCb,b->Bc,c->BcBa')\n    Automorphism of the Free Group on generators {a, b, c}: a->a*b,b->a*c,c->a\n    sage: free_group_automorphisms.Cohen_Lustig_1_6()\n    Automorphism of the Free Group on generators {a, b, c}: a->c^3*a*c^-3,b->c^-1*a*c^2*a^-1*b*c^-1,c->a*c^2*a^-1*b*c^2*a*c^-2*b^-1*a*c^-2*a^-1*c^4*a^-1*c^-3",
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        "home_page": "https://github.com/coulbois/sage-train-track",
        "keywords": "SageMath Freegroup Automorphism Train-track",
        "license": "GPLv3.0",
        "maintainer": "",
        "maintainer_email": "",
        "name": "train-track",
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        "platform": "",
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        "summary": "Train-tracks for freegroup automorphisms",
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