Klein Definition and 104 Threads

hi all.................are d klein gordon equation n d schrodinger fock equation d same?

Hi Does anyone know what a klein bottle and mobius strip is ??what does embedding a surface in R4 mean??Is there any easy way to understand this??..Can someone enlighten me on this??I have an engg background..So please explain in simple language.. Bye Shankar

I understand a Klein bottle is somewhat of a 3D version of a mobius strip in that it has only one continuous surface. But what do mathematicians do with it? How is it expressed mathematically, how does it classify among other shapes? Does it have some kind of applications?

Hi everybody! Question #1 What is the definition of a Klein group? The K_4 group has a table that looks like this: \begin{array}{c|cccc} *&e&a&b&c \\\hline e&e&a&b&c\\ a&a&e&c&b\\ b&b&c&e&a\\ c&c&b&a&e \end{array} What is the strict definition of a Klein group? That every...