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Asymptotic cone of semisimple orbits for symmetric pairs
asymptotic cone Richardson orbit nilpotent orbit symmetric pair
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2011/2/21
Let G be a reductive algebraic group over C and denote its Lie algebra by g. Let Oh be a closed G-orbit through a semisimple element h ∈ g. By a result of Borho and Kraft [BK79], it is known that the ...
Primitive prime divisors in zero orbits of polynomials
Primitive prime divisors zero orbits of polynomials
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2010/12/9
Let (bn) = (b1, b2, . . . ) be a sequence of integers. A primitive prime divisor of a term bk is a prime which divides bk but does not divide any of the previous terms of the sequence. A zero orbit of...