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Proof that the conjugacy class association scheme is an association scheme

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#group-theory #combinatorial-designs #association-schemes
46
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help with proving and evaluating statements of combinatorial designs

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#combinatorial-designs
105
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block design and group testing

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#statistics #discrete-mathematics #combinatorial-designs
392
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Unsolved Perfect Coverings

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#combinatorics #group-theory #graph-theory #extremal-combinatorics #combinatorial-designs
127
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Equivalent arrangements of arrows

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#general-topology #combinatorics #graph-theory #combinatorial-designs #topological-graph-theory
185
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Number of different block intersections in non-symmetric (v,k,1) BIBD

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#combinatorics #combinatorial-designs
571
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Steiner triple system of order 13

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#combinatorics #combinatorial-designs
230
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A Combinatorial Problem on Families of Subsets of $[n]$

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#combinatorics #computer-science #combinatorial-designs
69
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There is not a $2-(21,6,1)$ design!

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#combinatorics #combinatorial-designs
311
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Proving existence of a finite projective plane

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#discrete-mathematics #combinatorial-designs
187
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The maximum amount of checkers placed on an $m \times n$ checkerboard with no rectangles formed

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#combinatorics #graph-theory #combinatorial-designs
5.1k
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La Jolla Covering tables, how to use them? Are they optimized?

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#combinatorics #combinatorial-designs
198
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Do all Steiner Triple Systems of order greater than 7 satisfy the Parallel Line Postulate?

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#combinatorics #geometry #combinatorial-designs
193
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Burnside / Cauchy-Frobenius Lemma for the automorphism group of a symmetric block design

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#abstract-algebra #combinatorics #group-theory #permutations #combinatorial-designs
127
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Checking my understanding of Multipliers for Difference Sets

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#abstract-algebra #combinatorics #group-theory #combinatorial-designs #difference-sets

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