# HG changeset patch
# User Keshav Kini <keshav.kini@gmail.com>
# Date 1338337391 25200
# Node ID e43401df8ed6360c3ac0b0db812fcd5673810c52
# Parent 528f0e5dd9978d6093426a38d38c5376a4f03951
Provide attribution for construction method
diff --git a/sage/graphs/graph_generators.py b/sage/graphs/graph_generators.py
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| 1518 | 1518 | For more information on the Hall-Janko graph, see its |
| 1519 | 1519 | :wikipedia:`Wikipedia page <Hall-Janko_graph>`. |
| 1520 | 1520 | |
| | 1521 | The construction used to generate this graph in Sage is by |
| | 1522 | a 100-point permutation representation of the Janko group `J_2`, |
| | 1523 | as described in version 3 of the ATLAS of Finite Group |
| | 1524 | representations, in particular on the page `ATLAS: J2 |
| | 1525 | â Permutation representation on 100 points |
| | 1526 | <http://brauer.maths.qmul.ac.uk/Atlas/v3/permrep/J2G1-p100B0>`_. |
| | 1527 | |
| 1521 | 1528 | EXAMPLES:: |
| 1522 | 1529 | |
| 1523 | 1530 | sage: g = graphs.HallJankoGraph() |
| … |
… |
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| 1553 | 1560 | # takes some time to run them, this method actually builds the graph |
| 1554 | 1561 | # from its sparse6 string. |
| 1555 | 1562 | |
| | 1563 | # The following construction is due to version 3 of the ATLAS of Finite |
| | 1564 | # Group Representations, specifically the page at |
| | 1565 | # http://brauer.maths.qmul.ac.uk/Atlas/v3/permrep/J2G1-p100B0 . |
| | 1566 | |
| 1556 | 1567 | # from sage.interfaces.gap import gap |
| 1557 | 1568 | # gap.eval("g1 := (1,84)(2,20)(3,48)(4,56)(5,82)(6,67)(7,55)(8,41)" |
| 1558 | 1569 | # "(9,35)(10,40)(11,78)(12,100)(13,49)(14,37)(15,94)(16,76)" |