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math.FA2014
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…
cs.GT2014
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…