Take the 2-minute tour ×  I am very enthusiastic about learning
QFT. How much group theory would I need to master? Please could
you recommend me a textbook on group theory, which would help me
to start QFT?  share|improve this question There is a list here.
I would also recommend Differential Geometry and Lie Groups for
Physicists and Group Theory: A Physicist's Survey –  Vijay
Murthy Apr 8 '12 at 12:49 Cross-listed to
theoreticalphysics.stackexchange.com/q/1105/189 –  Qmechanic Apr
8 '12 at 13:12 add comment  3 Answers  up vote 2 down vote
accepted  Georgi's book on Lie Groups is enough, but most of the
group theory is explained in the physics texts. It is nice to
learn group theory, but the mathematician's theory is more
concerned with characters and root lattices, which are nice, but
not essential in most of the bread-and-butter applications.　The
ALE classification is important in mathematical physics, but I
think it is covered properly in the physics literature.  You
don't need anything too special--- jus