could you tell me a a mathematical publication where i can find the proof of why the genus of connected sum G(Q1#Q2) is G(Q1) + G(Q2) for orientable surface and 2G(Q1) + G(Q2) otherwise. I need it to make a bibliographic set of a thesis.
Thanks!
2026-03-03 19:25:49.1772565949
genus of connected sum G(Q1#Q2)
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