Mathematics

1. Operators 100%
2. Hankel Operator 96%
3. Asymptotics 89%
4. Matrix 80%
5. Classes 62%
6. Functions 51%
7. Self-Adjoint Operator 40%
8. Spectral Density 39%
9. Spectral Theory 31%
10. Spectral Projection 31%
11. Continuous Spectrum 29%
12. Kernel 26%
13. Singular Value 23%
14. Essential Spectrum 22%
15. Spectral Shift Function 22%
16. Self-Adjoint 20%
17. Multiplicative 19%
18. Hamiltonian 18%
19. Approximation 18%
20. Unit Circle 16%
21. Toeplitz Operator 15%
22. Variables 15%
23. Leading Term 14%
24. Flow 14%
25. Asymptotic Behavior 13%
26. Constant 13%
27. Integral Operator 12%
28. Hankel Matrix 12%
29. Piecewise Continuous Function 11%
30. Boundedness 11%
31. Sequences 10%
32. Hilbert Spaces 10%
33. Points 9%
34. Zeros 9%
35. Moment Problem 7%
36. Restriction Map 7%
37. Sharp Estimate 7%
38. Model Space 7%
39. Approximation of Function 7%
40. Theoretic Method 7%
41. PDE 7%
42. Pauli Operator 7%
43. Limit Theorem 7%
44. Subspace 7%
45. Asymptotic Formula 7%
46. Rational Approximation 7%
47. Orthogonal Polynomial 7%
48. Rational Function 7%
49. Nonnegativity 7%
50. Graph 7%