Thread:Azathoth the Abyssal Idiot/@comment-24503208-20180418013408/@comment-24503208-20180418015903

Well that was too quick.

I managed to get my hands on some books on Google.

https://books.google.com/books?id=PRojvYf1SNAC&printsec=frontcover&dq=hilbert+space&hl=en&sa=X&ved=0ahUKEwiFmfzS2MLaAhULVN8KHd2lAPsQ6AEIRDAF#v=onepage&q=hilbert%20space&f=false

This book is named “Quantum Mechanics in Hilbert Space”. This seems a genuine theoretical physics book.

Another book I recommend reading will be this one:

https://books.google.com/books?id=_igwFHKwcyYC&printsec=frontcover&dq=hilbert+space&hl=en&sa=X&ved=0ahUKEwiFmfzS2MLaAhULVN8KHd2lAPsQ6AEIJTAA#v=onepage&q=hilbert%20space&f=false

I gonna quote (and use a picture) this from the first book I linked to you, friend:

“The above theorem does not apply to infinite-dimensional spaces. In fact, most of the operators of interest in quantum physics are unbound.”

Hmmm that is intriguing.