Memorial volume for Yi Shi Duan SU(2) gauge theory and electrodynamics with N magnetic monopoles Yi Shi Duan and Mo Lin Ge Abelian decomposition of QCD Y.M. Cho How can we understand quark confinement in quantum Yang Mills theory Kei Ichi Kondo Asymmetrical input output control in cavity quantum electrodynamics Yifu Zhu Energy and angular momentum in gravity theories Rong Gen Cai and Li Ming Cao Gravitational energy and the gauge theory perspective Chiang Mei Chen and James M. Nester Energy momentum in general relativity Xiaoning Wu and Xiao Zhang Introduction to extra dimensions and thick braneworlds Yu Xiao Liu Yi Shi Duan (1927 2016) was one of the world renowned pioneers in the study of gauge field theory and general relativity in China. Trained in former Soviet Union Prof. Duan returned to China in 1957 to work in Lanzhou University for 60 years. In 1963 he came up with a general co variant form of conservation law of energy momentum tensor in general relativity. In 1979 he suggested that the gauge potential could be decomposed which has importance implications to gauge field theory. He trained a big team of talents in theoretical physics in China. His contributions to theoretical physics in China have earned him praise from both Professor S S Chern and Professor C N Yang