In the paper [M. Akbar and R.G. Cai, Commun. Theor. Phys. 45 （2006） 95], a complete classification is provided with at least one component of the vector field V is zero. In this paper, I consider the vector field V ...In the paper [M. Akbar and R.G. Cai, Commun. Theor. Phys. 45 （2006） 95], a complete classification is provided with at least one component of the vector field V is zero. In this paper, I consider the vector field V with all non-zero components and the static space times with maximal symmetric transverse spaces are classified according to their Ricci collineations. These are investigated for non-degenerate Ricci tensor det R ≠0. It turns out that the only collineations admitted by these spaces can be ten, seven, six or four. It also covers our previous results as a spacial case. Some new metrics admitting proper Ricci collineations are also investigated.展开更多
November 2012, the CPC eighteen report makes clear the ＂three advocacy＂ that is ＂promote a prosperous, democratic, civilized, harmonious, advocating freedom, equality, justice, rule of law, promote patriotism, dedi...November 2012, the CPC eighteen report makes clear the ＂three advocacy＂ that is ＂promote a prosperous, democratic, civilized, harmonious, advocating freedom, equality, justice, rule of law, promote patriotism, dedication, integrity, kindness, and actively cultivate community ism core values＂. Shanghai University of Engineering Science actively exchange, in consultation with Chen Yun Memorial. Chen Yun Memorial becomes education base of Party spirit of Shanghai University of Engineering Science in January 2012. The two sides mutual assistance, resource sharing, innovation, and collaborate on a series of patriotic education, spirit of education, the socialist core value education as the core of ideological education. Make full use of Shanghai University of Engineering Science Chen Yun Memorial rich red cultural resources, cultural heritage and innovation red while actively practice the socialist core values, help young party members to establish a correct outlook on life and values, enhance the spirit of patriotism of young party members to enhance awareness of young party members in the party spirit.展开更多
文摘In the paper [M. Akbar and R.G. Cai, Commun. Theor. Phys. 45 （2006） 95], a complete classification is provided with at least one component of the vector field V is zero. In this paper, I consider the vector field V with all non-zero components and the static space times with maximal symmetric transverse spaces are classified according to their Ricci collineations. These are investigated for non-degenerate Ricci tensor det R ≠0. It turns out that the only collineations admitted by these spaces can be ten, seven, six or four. It also covers our previous results as a spacial case. Some new metrics admitting proper Ricci collineations are also investigated.
文摘November 2012, the CPC eighteen report makes clear the ＂three advocacy＂ that is ＂promote a prosperous, democratic, civilized, harmonious, advocating freedom, equality, justice, rule of law, promote patriotism, dedication, integrity, kindness, and actively cultivate community ism core values＂. Shanghai University of Engineering Science actively exchange, in consultation with Chen Yun Memorial. Chen Yun Memorial becomes education base of Party spirit of Shanghai University of Engineering Science in January 2012. The two sides mutual assistance, resource sharing, innovation, and collaborate on a series of patriotic education, spirit of education, the socialist core value education as the core of ideological education. Make full use of Shanghai University of Engineering Science Chen Yun Memorial rich red cultural resources, cultural heritage and innovation red while actively practice the socialist core values, help young party members to establish a correct outlook on life and values, enhance the spirit of patriotism of young party members to enhance awareness of young party members in the party spirit.
