Stabilizers



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Stabilizers

  To the orbits , which are subsets of , there correspond certain subgroups of . For each we introduce its stabilizer :

This is the subgroup of elements of that stabilize the point There is also the subgroup of elements which pointwise stabilize the elements of a subset of

and which is called the pointwise stabilizer of in contrast to the setwise stabilizer of

We note in passing that that and that this notation is compatible with the notation for the kernel of the permutation representation corresponding to



Herr Fripertinger
Sun Feb 05 18:28:26 MET 1995