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  1. Article

    Open Access

    The Classification of Surfaces via Normal Curves

    We present a simple proof of the surface classification theorem using normal curves. This proof is analogous to Kneser’s and Milnor’s proof of the existence and uniqueness of the prime decomposition of 3-manif...

    Fethi Ayaz, Marc Kegel in Jahresbericht der Deutschen Mathematiker-Vereinigung (2023)