Journal of Lie Theory, Vol. 10, No. 2, pp. 331-343 (2000)

Index of Lie algebras of seaweed type

Vladimir Dergachev and Alexandre Kirillov

Vladimir Dergachev
Department of Mathematics
University of Pennsylvania
209 South 33rd Street
Philadelphia, PA 19104-6395, USA
[email protected]
and
Alexandre Kirillov
Department of Mathematics
University of Pennsylvania
209 South 33rd Street
Philadelphia, PA 19104-6395, USA
[email protected]

Abstract: We present a solution to the problem of finding the index of parabolic subalgebras of GL$(n)$ and expose their relationship to interesting combinatorial objects, namely, Meanders.

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