Geometric genus

basic birational invariant

en-US/ˌd͡ʒiəˈmɛtɹɪk ˈd͡ʒinəs/
en-GB/ˌd͡ʒiːəʊˈmɛtɹɪk ˈd͡ʒiːnəs/

زمرے:

genus