Symmetric Block Design
A symmetric design is a Block Design (
, 
, 
, 
, 
) with the same number of blocks as points, so 
(or, equivalently, 
). An example of a symmetric block design is a Projective Plane.
References
Dinitz, J. H. and Stinson, D. R. ``A Brief Introduction to Design Theory.'' Ch. 1 in Contemporary Design Theory: A Collection of Surveys (Ed. J. H. Dinitz and D. R. Stinson). New York: Wiley, pp. 1-12, 1992.
- Counting Generalized Principle
- Counting Number
- Coupon Collector's Problem
- Covariance
- Covariance Matrix
- Covariant Derivative
- Covariant Tensor
- Covariant Vector
- Cover
- Covering
- Covering Dimension
- Covering System
- Cover Relation
- Coversine
- Coxeter Diagram
- Coxeter-Dynkin Diagram
- Coxeter Graph
- Coxeter Group
- Coxeter Matrix
- Coxeter's Loxodromic Sequence of Tangent Circles
- Coxeter-Todd Lattice
- Cox's Theorem
- Cramer's Rule
- Cramér Conjecture
- Cramér-Euler Paradox