Classification of spherical nilpotent orbits for $U(p,p)$

نویسندگان

چکیده

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Classification of Spherical Nilpotent Orbits in Complex Symmetric Space

Let G be the adjoint group of the simple real Lie algebra g , and let K C → Aut(p C ) be the complexified isotropy representation at the identity coset of the corresponding symmetric space. We classify the spherical nilpotent K C orbits in p C .

متن کامل

Some Amazing Properties of Spherical Nilpotent Orbits

Let G be a simple algebraic group defined over an algebraically closed field k of characteristic zero. Write g for its Lie algebra. Let x ∈ g be a nilpotent element and G·x ⊂ g the corresponding nilpotent orbit. The maximal number m such that (adx) 6= 0 is called the height of x or of G·x, denoted ht(x). Recall that an irreducible G-variety X is called G-spherical if a Borel subgroup of G has a...

متن کامل

Spherical Nilpotent Orbits and Unipotent Representations

then the coadjoint orbits of SL (2,R) fall into three basic classes; according to whether the Casimir function B (Z,Z) = h + xy is positive, negative or zero.(Here Z ≡ x ∗X + h ∗H + y ∗ Y .) The nature of these orbits becomes a little clear if we adopt a basis for which B is diagonal, setting Z0 = X − Y Z2 = X + Y Z3 = H we find B (Z,Z) = −z 0 + z 2 + z 3 That is, the invariant bilinear form on...

متن کامل

Spherical Nilpotent Orbits and the Kostant-sekiguchi Correspondence

Let G be a connected, linear semisimple Lie group with Lie algebra g, and let KC → Aut(pC ) be the complexified isotropy representation at the identity coset of the corresponding symmetric space. The Kostant-Sekiguchi correspondence is a bijection between the nilpotent KC -orbits in pC and the nilpotent G-orbits in g. We show that this correspondence associates each spherical nilpotent KC -orbi...

متن کامل

Quantization of Nilpotent Coadjoint Orbits Quantization of Nilpotent Coadjoint Orbits Quantization of Nilpotent Coadjoint Orbits

Let G be a complex reductive group. We study the problem of associating Dixmier algebras to nilpotent (co)adjoint orbits of G, or, more generally, to orbit data for G. If g = 0 + n + in is a triangular decomposition of g and 0 is a nilpotent orbit, we consider the irreducible components of 0 n n, which are Lagrangian subvarieties of 0. The main idea is to construct, starting with certain "good"...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Kyoto Journal of Mathematics

سال: 2004

ISSN: 2156-2261

DOI: 10.1215/kjm/1250283590