## Mathematics Subject Classification – MSC2010

General reference works (handbooks, dictionaries, bibliographies, etc.) 23

Instructional exposition (textbooks, tutorial papers, etc.) 864

Research exposition (monographs, survey articles) 1550

Explicit machine computation and programs (not the theory of computation or programming) 755

Directed graphs (digraphs), tournaments 8872

Graphs and linear algebra (matrices, eigenvalues, etc.) 9043

Isomorphism problems (reconstruction conjecture, etc.) and homomorphisms (subgraph embedding, etc.) 2705

Graph representations (geometric and intersection representations, etc.) [For graph drawing, see also 68R10] 2141

Graph operations (line graphs, products, etc.) 1969

Graph labelling (graceful graphs, bandwidth, etc.) 4207

Transversal (matching) theory 259