## Mathematics Subject Classification – MSC2010

Directed graphs (digraphs), tournaments 9006

Graphs and linear algebra (matrices, eigenvalues, etc.) 9231

Isomorphism problems (reconstruction conjecture, etc.) and homomorphisms (subgraph embedding, etc.) 2748

Graph representations (geometric and intersection representations, etc.) [For graph drawing, see also 68R10] 2195

Graph operations (line graphs, products, etc.) 2040

Graph labelling (graceful graphs, bandwidth, etc.) 4283