## Mathematics Subject Classification – MSC2010

Directed graphs (digraphs), tournaments 9328

Graphs and linear algebra (matrices, eigenvalues, etc.) 9735

Isomorphism problems (reconstruction conjecture, etc.) and homomorphisms (subgraph embedding, etc.) 2880

Graph representations (geometric and intersection representations, etc.) [For graph drawing, see also 68R10] 2346

Graph operations (line graphs, products, etc.) 2273

Graph labelling (graceful graphs, bandwidth, etc.) 4463