Topics in Combinatorics
- Graded Polynomial rings
- Graded modules and homomorphisms
- Graded complexes
- Minimal free resolutions
- Syzygies
- Graded Betti numbers
- Simplicial complexes
- Stanley-Reisner ideals
- f-vectors
- Reduced homologies of simplicial complexes
- Some operations on simplicial complexes
- Hochster's formula