2 citations · 2 across the 4 of their papers we have counts for
4 papers
An upper bound on the dimension of the voting system of the European Union Council under the Lisbon rules
Yuming Chen, Wai Shun Cheung, Tuen Wai Ng
The voting rules of the European Council (EU) under the Treaty of Lisbon became effective on 1 November 2014. Kurz \& Napel (2015) showed that the dimension of this voting system i…
New pairs of matrices with convex generalized numerical ranges
Wai-Shun Cheung
In this article, we are going to search for matrices and such that their generalized numerical range is convex. More…
On the boundary of weighted numerical ranges
Wai-Shun Cheung
In this article, we are going to introduce the weighted numerical range which is a further generalization both the c-numerical range and the rank k numerical range. If the boundari…
A Three-Dimensional Voting System in Hong Kong
Wai-Shun Cheung, Tuen-Wai Ng
The voting system in the Legislative Council of Hong Kong (Legco) is sometimes unicameral and sometimes bicameral, depending on whether the bill is proposed by the Hong Kong govern…