05C25 Graphs and abstract algebra (groups, rings, fields, etc.) [See also <a href="#code:20F65">20F65</a>]

05C35 Extremal problems [See also <a href="#code:90C35">90C35</a>]

05C38 Paths and cycles [See also <a href="#code:90B10">90B10</a>]

05C50 Graphs and linear algebra (matrices, eigenvalues, etc.)

05C51 Graph designs and isomomorphic decomposition  [See also <a href="#code:05B30">05B30</a>]

05C55 Generalized Ramsey theory [See also <a href="#code:05D10">05D10</a>]

05C57 Games on graphs [See also <a href="#code:91A43">91A43</a>, <a href="#code:91A46">91A46</a>]

05C60 Isomorphism problems (reconstruction conjecture, etc.) and homomorphisms (subgraph embedding, etc.)

05C62 Graph representations (geometric and intersection representations, etc.) {For graph drawing, see also <a href="#code:68R10">68R10</a>}

05C69 Dominating sets, independent sets, cliques

05C70 Factorization, matching, partitioning, covering and packing

05C72 Fractional graph theory, fuzzy graph theory

05C75 Structural characterization of families of graphs

05C76 Graph operations (line graphs, products, etc.)

05C78 Graph labelling (graceful graphs, bandwidth, etc.)

05C80 Random graphs [See also <a href="#code:60B20">60B20</a>]

05C82 Small world graphs, complex networks [See also <a href="#code:90Bxx">90Bxx</a>, <a href="#code:91D30">91D30</a>]

05C85 Graph algorithms [See also <a href="#code:68R10">68R10</a>, <a href="#code:68W05">68W05</a>]

05C99 None of the above, but in this section

05D10 Ramsey theory  [See also <a href="#code:05C55">05C55</a>]

05D99 None of the above, but in this section

05E05 Symmetric functions and generalizations

05E10 Combinatorial aspects of representation theory[See also <a href="#code:20C30">20C30</a>]

05E15 Combinatorial aspects of groups and algebras [See also <a href="#code:14Nxx">14Nxx</a>, <a href="#code:22E45">22E45</a>, <a href="#code:33C80">33C80</a>]

05E18 Group actions on combinatorial structures

05E30 Association schemes, strongly regular graphs

05E40 Combinatorial aspects of commutative algebra