Barbara Pogorelsky

  1. Right coideal subalgebras of quantized universal enveloping algebras of type G2.

    Authors: Barbara Pogorelsky
    Subjects: Quantum Algebra
    Abstract

    In this paper we describe the right coideal subalgebras containing all
    group-like elements of the two-parameter quantum groups Uq(g) and uq(g), where
    g is a simple Lie algebra of type G2. As a consequence, we determine that there
    are precisely 60 different right coideal subalgebras containing all group-like
    elements.

  2. Right Coideal Subalgebras of the Quantum Borel Algebra of type G2.

    Authors: Barbara Pogorelsky
    Subjects: Quantum Algebra
    Abstract

    In this paper we describe the right coideal subalgebras containing all
    group-like elements of the multiparameter quantum group Uq+(g), where g is a
    simple Lie algebra of type G2, while the main parameter of quantization q is
    not a root of 1. If the multiplicative order t of q is finite, t>4, t different
    from 6, then the same classification remains valid for homogeneous right
    coideal subalgebras of the positive part uq+(g) of the multiparameter version
    of the small Lusztig quantum group.

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