Fuglede──Putnam定理的简单证明陈寅(河海大学数理系210024)复矩阵A称为正规矩阵,如A*A=AA*,这里A*为A的共轭转置,关于正规矩阵的最重要的结论之一是Fuglede-Putnam定理,[1,538-542]给出了这个定理的证明...
Fuglede: A simple proof of
Amphioxus is an extant species closest to the ancestry of vertebrates.Observation of microRNA(miRNA) distribution of amphioxus would lend some hints for evoluti