Abstract
The cusp was recently shown to admit the structure of a quantum homogeneous space, that is, its coordinate ring B can be embedded as a right coideal subalgebra into a Hopf algebra A such that A is faithfully flat as a B-module. In the present article such a Hopf algebra A is constructed for the coordinate ring B of the nodal cubic, thus further motivating the question which affine varieties are quantum homogeneous spaces.
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Presented by Paul Smith.
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Krähmer, U., Tabiri, A.A. The Nodal Cubic is a Quantum Homogeneous Space. Algebr Represent Theor 20, 655–658 (2017). https://doi.org/10.1007/s10468-016-9658-8
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DOI: https://doi.org/10.1007/s10468-016-9658-8