并列题名：Algebraic varieties Algebraic varieties 并列题名：Toric varieties 并列题名：Algebraic geometry 并列题名：Algebraic combinatorics 并列题名：Algebraic graph theory 并列题名：Algebraic mind 并列题名：Algebraic number theory 并列题名：Algebraic Topology。 并列题名：Algebraic topology