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## Main Question or Discussion Point

Hello, everyone, plz forgive me for my poor English.

I'm a sophomore, major in Astronomy. I've finished Hassani's book(Mathematical Physics). And I've learnt Real variable function and functional analysis （I do not know what exact name of this course）

I'd like to buy a textbook with following virtues.

1 It take full advantage of Tensor Analysis and so on, enabling me to know how powerful the mathematicians are. My teacher said Landau's book is too old to employ the achievements contributed by the mathematicians in recent years.(But he do not know which book employs them..... -_-|||)

2 I don't know what is useful in Astronomy, but I want it suits my major (You can skip this if you have no interest in astronomy)

Thanks for taking your time~

I'm a sophomore, major in Astronomy. I've finished Hassani's book(Mathematical Physics). And I've learnt Real variable function and functional analysis （I do not know what exact name of this course）

I'd like to buy a textbook with following virtues.

1 It take full advantage of Tensor Analysis and so on, enabling me to know how powerful the mathematicians are. My teacher said Landau's book is too old to employ the achievements contributed by the mathematicians in recent years.(But he do not know which book employs them..... -_-|||)

2 I don't know what is useful in Astronomy, but I want it suits my major (You can skip this if you have no interest in astronomy)

Thanks for taking your time~