1. The science had switched focus from acoustical mechanics to combinatorial mathematics. 2. The new combinatorial topology formally treated topological classes as abelian groups. 3. A study of computational complexity theory helps to motivate combinatorial search. 4. Deriving similar results for games with rich combinatorial structures is difficult. 5. After this, Gowers turned to combinatorics and combinatorial number theory. 6. Submodular and supermodular set functions are also studied in combinatorial optimization. 7. She was the first woman Reader in Combinatorial Mathematics in Australia. 8. Finding good floorplans has been a research area in combinatorial optimization. 9. The variety of graphs defined as follows constitutes a combinatorial example. 10. It should not be confused with discrete geometry ( combinatorial geometry ).
