Applications of LA in Combinatorics
Tutorials for Applications of Linear Algebra in Combinatorics [NDMI028] in winter semester 2022/2023. Tutorials take place on Friday 15:40 at K12, Karlín. I lead the tutorials together with prof. Kratochvíl.
Course completion requirements
It is required to attend all tutorials and submit solution to home assignments in order to pass the course tutorials. There are two types of homework:
- *-type: Every week, one assignment will be posted and you have two weeks to finish it. To pass the tutorials, you have to submit at least half of the assignments.
- a-type: If you do not attend tutorials, you have to submit homework assignments corresponding to the tutorials.
HW submission progress
Homework assignments
Date: | Topic: | Materials: | Deadline: |
---|---|---|---|
7. 10. 2022 | Revision of Linear Algebra | here | 21. 10. 2022 |
14. 10. 2022 | Determinants and Odd/Even cities | here | 28. 10. 2022 |
21. 10. 2022 | Odd cities | here | 4. 11. 2022 |
28. 10. 2022 | National holiday | here | 28. 10. 2022 |
4. 11. 2022 | Mod-q cities | here | 18. 11. 2022 |
11. 11. 2022 | Spectral graph theory I. | here | 25. 11. 2022 |
18. 11. 2022 | Spectral graph theory II. | here | 2. 12. 2022 |
25. 11. 2022 | Spectral graph theory III. | here | 16. 12. 2022 |
2. 12. 2022 | Spectral graph theory IV. | here | 16. 12. 2022 |
6. 12. 2022 | Spectral graph theory V. | here | 6. 1. 2023 |
Lectures
The lecture notes are avalaible only in Czech. For materials in English, contact prof. Kratochvil at honza@kam.mff.cuni.cz.
Date: | Topic: | Materials: |
---|---|---|
7. 10. 2022 | Matrix representations of graphs, powers of the adjacency matrix, determinants and spanning trees | here |
14. 10. 2022 | Linear (in)dependece, sizes of special set systems, 2-distances sets | here |
21. 10. 2022 | Orthogonality and orthogonal complements, cycle space of a graph | here |
28. 10. 2022 | National holiday | here |
4. 11. 2022 | Linear forms, dual homomorphisms, Seidel switching | here |
11. 11. 2022 | Spectral graph theory, eigenvalues of graphs, Moore graphs | here |
18. 11. 2022 | Strongly regular graphs, friendship theorem, interlacing of eigenvalues | here |
25. 11. 2022 | Applications of interlacing of eigenvalues | here |
2. 12. 2022 | Shannon capacity of graphs | here |
9. 12. 2022 | Coding theory, Lloyd theorem | here |