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On the Finiteness of the Number of Orbits on Quasihomogeneous $(\mathbb C^*)^k\times SL_2(\mathbb C)$-manifolds
E. V. Sharoiko M. V. Lomonosov Moscow State University
Abstract:
We obtain an effective criterion for the finiteness of the number of orbits contained in the closure of a given $G$-orbit for the case of a rational linear action of the group $G:=(\mathbb C^*)^k\times SL_2(\mathbb C)$ on a finite-dimensional linear space as well as on the projectivization of such a space.
Keywords:
the group $SL_2(\mathbb C)$, rational linear action, orbit, character lattice, Borel subgroup, analytic curve, irreducible algebraic variety.
Received: 03.11.2005 Revised: 30.08.2006
Citation:
E. V. Sharoiko, “On the Finiteness of the Number of Orbits on Quasihomogeneous $(\mathbb C^*)^k\times SL_2(\mathbb C)$-manifolds”, Mat. Zametki, 81:5 (2007), 766–775; Math. Notes, 81:5 (2007), 686–694
Linking options:
https://www.mathnet.ru/eng/mzm3719https://doi.org/10.4213/mzm3719 https://www.mathnet.ru/eng/mzm/v81/i5/p766
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