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I am trying to understand the concept of symmetries, SU(2), SU(3), unitary group, orthogonal group SO(1)......so on.

I don't know from where to start and what would be the first group to study and then move on step by step into the other.

Also, I need to have a basic (theoretical) understanding, what this mean and the significances in modern physics.

Can anybody please guide me?

Thanks

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# SU(2), SU(3) and other symmetries

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