05C60 Isomorphism problems in graph theory (reconstruction conjecture, etc.) and homomorphisms (subgraph embedding, etc.) 3855

05C62 Graph representations (geometric and intersection representations, etc.) {For graph drawing, see also 68R10} 3241

05C69 Vertex subsets with special properties (dominating sets, independent sets, cliques, etc.) 10690

05C70 Edge subsets with special properties (factorization, matching, partitioning, covering and packing, etc.) 15047