张 祖宏

Mathematics

1. Commutator 100%
2. Unitary Group 55%
3. Commutator Subgroup 30%
4. Congruence Subgroup 25%
5. Calculus 18%
6. Commutative Ring 17%
7. General Linear Group 17%
8. Associative Ring 16%
9. Modulo 13%
10. K-Theory 13%
11. Unit Vector 11%
12. Elementary Matrix 11%
13. Two-sided Ideal 11%
14. Betti Number 11%
15. Graded Ring 11%
16. Direct Limit 11%
17. Main Result 9%
18. Irreducible Root System 9%
19. K-Group 5%
20. Commutativity 5%