Mathematics

1. Eigenvalue 100%
2. Edge 45%
3. Independence Number 43%
4. Chromatic Number 38%
5. Regular Graph 35%
6. Laplace Operator 34%
7. Matrix (Mathematics) 33%
8. Laplacian Matrix 31%
9. Upper Bound 28%
10. Clique 25%
11. Adjacency Matrix 22%
12. Connected Graph 21%
13. Block Graph 20%
14. Distinct Eigenvalue 17%
15. Grassmann 17%
16. Necessary and Sufficient Condition 17%
17. Small Eigenvalue 17%
18. Polynomial Time 17%
19. Eigenvalue of a Graph 17%
20. Hypergraphs 17%
21. Adjacency 16%
22. Colorability 12%
23. Graph Coloring 12%
24. Structural Property 12%
25. Integer Programming 11%
26. Spectral Method 11%
27. clique number ω 11%
28. Complete Graph 10%
29. Nonexistence 9%
30. Existence Result 9%
31. Cardinality 9%
32. Spectral Property 8%
33. Symmetric Matrix 8%
34. Lower and upper bounds 8%
35. Rotation Operator 8%
36. White Square 8%
37. Discrete Model 8%
38. Matrix Group 8%
39. Group Inverse 8%
40. Rank Sum 8%
41. Signed Graph 8%
42. Inverse Element 8%
43. Opposite Orientation 8%
44. Characteristic Polynomial 8%
45. Descriptive Complexity 8%
46. Real Life 8%
47. Necessary Condition 8%
48. Positive Eigenvalue 8%
49. Expander 8%
50. Eigenvalue Method 8%