20 citations · 76 across the 33 of their papers we have counts for
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math.CO1999★ 1 cited
Towards a characterisation of Pfaffian graphs
Charles H. C. Little, Franz Rendl, Ilse Fischer
A bipartite graph G is known to be Pfaffian if and only if it does not contain an even subdivision H of such that contains a 1-factor. However a general characte…
math.CO1999
Enumeration of rhombus tilings of a hexagon which contain a fixed rhombus in the centre
Ilse Fischer
We compute the number of rhombus tilings of a hexagon with side lengths a,b,c,a,b,c which contain the central rhombus and the number of rhombus tilings of a hexagon with side lengt…