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p-ranks Determination of the rank (over fields of prime characteristic p) of incidence matrices arising in finite geometries. Techniques include methods from algebraic geometry and group representation theory |
Ovoids and Spreads
Constructions and nonexistence results for ovoids in finite classical polar spaces. Techniques include the use of integral lattices and theta series |
Projective Planes and Generalised Polygons
Constructions and nonexistence results for generalised polygons, particularly finite projective planes with specified properties (such as order and/or collineation group) |
Double Covers of GraphsStudy, including construction and classification, of various combinatorial objects which may be described as double covers of graphs, especially two-graphs, Hadamard matrices and semibiplanes. Techniques include the use of representation theory and cohomology |
Loops
Constructions and stucture theorems for nonassociative systems including loops and their rings |
Quantum Information and Computation
Quantum algorithms, quantum codes, and quantum complexity theory |
Nets and Webs
![]() The main open problems concerning finite projective planes are reducible to questions about nets. Such questions are discrete analogues of questions in the theory of webs, and are amenable to a variety of algebraic techniques, particularly exponential sums |
Algebraic Graph TheoryDistance regular graphs and association schemes; algebraic methods for determining chromatic numbers of graphs |
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