21-801: Random Graphs, Spring 2012
Tuesday 3.30-5.30 Wean Hall 8201
Thursday 2.30-3.30 Wean Hall 8201

Monday 2.30-3.30 Wean Hall 7130
(only for people that cannot make the Thursday class).



Grading Policy:
There will be four in class tests worth 25% each.
A: 85%+
B: 75%--84%
C: 65%--74%
D: 50%--64%
R: 0%--49%


Exam Schedule (Provisional):

Test 1: Thursday, February 16, 2012
Test 2: Thursday, March 8, 2012
Test 3: Thursday, April 12, 2012.
Test 4: Thursday, May 3, 2012.
There will individual arrangements for those that cannot take the Thursday class.

Each test will have two questions.
The tests will be closed book.




Exercises



Course Notes, in addition to the manuscript provided.

1. Very sparse graphs o(n) edges I.
2. Very sparse graphs o(n) edges II.
3. Sparse graphs cn/2 edges. c<1.
4. Sparse graphs cn/2 edges. c>1.
5. Branching Processes
6. Connectivity of Random Graphs
7. Perfect Matchings in Random Graphs
8. Hamilton Cycles in Random Graphs
9. Seperation of High Degrees, Chromatic Index and Graph Isomorphism
10. Janson's Inequality
11. Diameter of Random Graphs
12. Coloring Random Graphs
13. Concentration Inequalities from Martingales
14. Small Subgraphs
15. Every Monotone Property has a Threshold
16. Expected Length of the Minimum Spanning Tree
17. Random Graphs with a Fixed Degree Sequence
18. Differential Equations Method
19. Eigenvalues of Random Graphs
20. Preferential Attachment
21. Largest Component: ~n/2 edges.
22. Perfect Matchings in Bipartite 2-out
23. Random Mappings
24. Shortest Paths
25. Digraphs