plural noun[treated as singular]
The branch of mathematics dealing with combinations of objects belonging to a finite set in accordance with certain constraints, such as those of graph theory.
- Generating functions have numerous applications in mathematics, especially in combinatorics, probability theory, statistics, the theory of Markov chains, and number theory.
- His early works range over number theory, statistics, combinatorics, game theory, as well as his principal interest of commutative algebra.
- The problems which attracted him most were problems in combinatorics, graph theory, and number theory.
1940s: from combinatorial (see combination), influenced by German Kombinatorik.
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