35 citations · 37 across the 4 of their papers we have counts for
4 papers
Reconstructing unrooted phylogenetic trees from symbolic ternary metrics
Stefan Grünewald, Yangjing Long, Yaokun Wu
In 1998, Böcker and Dress gave a 1-to-1 correspondence between symbolically dated rooted trees and symbolic ultrametrics. We consider the corresponding problem for unrooted trees.…
Chordality and hyperbolicity of a graph
Yaokun Wu, Chengpeng Zhang
Let be a connected graph with the usual shortest-path metric . The graph is -hyperbolic provided for any vertices in it, the two larger of the three sums $d…
Difference between minimum light numbers of sigma-game and lit-only sigma-game
Xinmao Wang, Yaokun Wu
A configuration of a graph is an assignment of one of two states, on or off, to each vertex of it. A regular move at a vertex changes the states of the neighbors of that vertex. A…
OTIS Layouts of De Bruijn Digraphs
Yaokun Wu, Aiping Deng
The Optical Transpose Interconnection System (OTIS) was proposed by Marsden et al. [Opt. Lett 18 (1993) 1083--1085] to implement very dense one-to-one interconnection between proce…