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20022009
most citedDiscovery (theoretical prediction and experimental observation) of a large-gap topological-insulator class with spin-polarized single-Dirac-cone on the surface

3.8k citations

Showing math.QAShow all

8 papers · 1 filter

math.QA2004

Structure of a new class of non-graded infinite dimensional simple Lie algebras

Yucai Su

A new class of infinite dimensional simple Lie algebras over a field with characteristic 0 are constructed. These are examples of non-graded Lie algebras. The isomorphism classes o…

math.QA2004

Structure of Algebras of Weyl Type

Yucai Su, Kaiming Zhao

In a paper by the authors, the associative and the Lie algebras of Weyl type were introduced, where is a commutative associative algebra with an identity e…

math.QA2003

Monomial Hopf Algebras

Xiao-Wu Chen, Hua-Lin Huang, Yu Ye +1

Let be a field of characteristic 0 containing all roots of unity. We classify all the Hopf structures on monomial -coalgebras, or, in dual version, on monomial -algebras.

math.QA2003

Derivations and structure of the Lie algebras of Xu type

Yucai Su

We determine the derivation algebras and the isomorphism classes of a family of the simple Lie algebras introduced recently by Xu [Manuscripta Math 100 (1999), 489-518]. The struct…

math.QA2003

Structure of the Lie algebras related to those of block

Yucai Su, Jianhua Zhou

We determine the isomorphism classes of the first family of infinite dimensional simple Lie algebras recently introduced by Xu. The structure space of these algebras is given expli…

math.QA20031 cited

Simple Modules Over the Higher Rank Super-Virasoro Algebras

Yucai Su

It is proved that uniformly bounded simple modules over higher rank super-Virasoro algebras are modules of the intermediate series, and that simple modules with finite dimensional…