%0 Journal Article
%T A GROUP OF EXACT (3+1) DIMENSIONAL CYLINDRICALLY SYMMETRIC WAVE SOLUTIONS TO THE EINSTEIN GRAVITATIONAL FIELD EQUATION<br>
%A TANG MENG-XI
%A AU CHI
%A <br>
%J 中国物理 B
%D 1997
%I 
%X Starting with the diagonal spacetime metric tensor, the Einstein gravitational field equation is solved, and a set of exact (3+1) dimensional cylindrically symmetric wave solutions with two arbitrary functions are found. In these solutions all nonvanishing components of spacetime metric tensor are varying with the same propagating factor (ct-z) while the waves are travelling along z axis. The physical picture and the condition of positive energy density of the wave solutions are discussed.
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=CD8D6A6897B9334F09D8D1648C376FB4&aid=F14C1DB7B852760E0E72D8E02966D1B4&yid=5370399DC954B911&vid=B31275AF3241DB2D&iid=708DD6B15D2464E8&sid=F7C11D7E3E8C5D3F&eid=E0FF0FB27B45F84E&journal_id=1009-1963&journal_name=中国物理&referenced_num=0&reference_num=0