Classification
510 - Mathematics
458
512 - Algebra
32
516 - Geometry
31
511 - General principles of mathematics
29
515 - Analysis
24
501 - Philosophy & theory
23
519 - Probabilities & applied mathematics
20
509 - Historical, geographic & persons treatment
19
530 - Physics
13
160 - Logic
11
004 - Data processing & computer science
10
518 - Numerical analysis
8
001 - Knowledge
7
620 - Engineering & allied operations
7
900 - History & geography
7
808 - Rhetoric & collections of literature
6
500 - Natural sciences & mathematics
5
514 - Topology
5
300 - Social sciences
3
100 - Philosophy & psychology
2
109 - Historical & collected persons treatment
2
142 - Critical philosophy
2
190 - Modern western philosophy
2
520 - Astronomy & allied sciences
2
531 - Classical mechanics; solid mechanics
2
600 - Technology
2
003 - Systems
1
120 - Epistemology, causation & humankind
1
200 - Religion
1
306 - Culture & institutions
1
333 - Economics of land & energy
1
370 - Education
1
526 - Mathematical geography
1
539 - Modern physics
1
550 - Earth sciences
1
621 - Applied physics
1
658 - General management
1