Combinatorics
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- Séminaire Lotharingien de Combinatoire
- A joint seminar in Combinatorics for the Universities of Bayreuth, Erlangen and Strasbourg, as well as the other Universities along the Lotharingian boundaries. Since 1994 the Seminar has hosted an international electronic journal under the same name. Journal contents, all volumes. Text from vol.32 (1994).
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- Open Mathematical Questions
- A few unsolved mathematical questions put together by Julian D. A. Wiseman.
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- Chunwei Song
- Combinatorics, graph theory and intellectual history. At the School of Mathematical Sciences, Peking University.
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- Juergen Bierbrauer
- Discrete mathematics and its interactions with geometry, cryptology and algorithms.
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- (Japan) Tsukuba
- Japanese Center for Combinatorics and its Applications. A virtual research centre. Links, lists.
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- (Sweden) Gothenburg
- Combinatorics group at Chalmers University of Technology and Gothenburg University.