Could someone recommend a good textbook on methods of mathematical physics?
Depends on your academic level and application. These are undergraduate to graduate level books:
Fundamental Numerical Methods and Data Analysis - G. Collins.pdf
Methods for Solving Inverse Problems in Mathematical Physics - Prilepko, Orlovskiy.pdf
As n0_3sc said, it depends on what you have in mind.
Take a look at https://www.physicsforums.com/showthread.php?p=1760434&highlight=Hassani#post1760434".
Or did you have stuffhttps://www.physicsforums.com/showpost.php?p=1008436&postcount=60" in mind?
george i read that second post and i can't imagine a practicing scientist/physicist being unfamiliar with something as basic as group theory, for example. i was always under the impression that abstract math was as tantamount to physical intuition in science.
Separate names with a comma.