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EJC
2008
14 years 9 months ago
Tabloids and weighted sums of characters of certain modules of the symmetric groups
We consider certain modules of the symmetric groups whose basis elements are called tabloids. As modules of the symmetric groups, some of these are isomorphic to Springer modules. ...
Yasuhide Numata
EJC
2008
14 years 9 months ago
A classification of finite partial linear spaces with a primitive rank 3 automorphism group of grid type
A partial linear space is a non-empty set of points, provided with a collection of subsets called lines such that any pair of points is contained in at most one line and every lin...
Alice Devillers
EJC
2008
14 years 9 months ago
Enumeration of almost polynomial rational functions with given critical values
1 Rational functions and minimal factorizations of permutations Let f : C C be a rational function of degree n in one complex variable. A critical point of f is a point z C such...
Dmitri Panov, Dimitri Zvonkine
EJC
2008
14 years 9 months ago
Grad and classes with bounded expansion I. Decompositions
Abstract. We introduce classes of graphs with bounded expansion as a generalization of both proper minor closed classes and degree bounded classes. Such classes are based on a new ...
Jaroslav Nesetril, Patrice Ossona de Mendez
EJC
2008
14 years 9 months ago
On triangle-free distance-regular graphs with an eigenvalue multiplicity equal to the valency
Let be a triangle-free distance-regular graph with diameter d 3, valency k 3 and intersection number a2 = 0. Assume has an eigenvalue with multiplicity k. We show that if for ...
Kris Coolsaet, Aleksandar Jurisic, Jack H. Koolen