Here, we make comments to the conclusions of the paper： LIU Shi-Da, Sill Shao-Ying, LIU Shi-Kuo, et al., ＂Vortex of Fluid Field as Viewed from Curvature＂ [Commun. Theor. Phys. 43 （2005） 604].
文摘Here, we make comments to the conclusions of the paper： LIU Shi-Da, Sill Shao-Ying, LIU Shi-Kuo, et al., ＂Vortex of Fluid Field as Viewed from Curvature＂ [Commun. Theor. Phys. 43 （2005） 604].
基金Supported by the Spanish Ministry of Science and Innovation through projects TSI2007-65406-C03-01 "EAEGIS" and Consolider Ingenio 2010 CSD2007-0004 "ARES"
文摘The domination number γ,（G） of a connected graph G of order n is bounded below by
