Combinatorics
=============

.. toctree::
   :hidden:

   Graphs/index-graphs
   Designs/index-designs
   PermutationGroupsSets/index-permutation-groups-sets
   CombinatorialEnumeration/index-combinatorial-enumeration

.. grid:: 1 2 3 3
   :gutter: 3
   :class-container: index-topic-grid

   .. grid-item-card:: Graphs
      :link: Graphs/index-graphs
      :link-type: doc

      Graph constructors, adjacency, traversal, colouring, cliques and independent sets.

   .. grid-item-card:: Designs
      :link: Designs/index-designs
      :link-type: doc

      Block designs, Latin squares and t-designs.

   .. grid-item-card:: Permutation Groups on Sets
      :link: PermutationGroupsSets/index-permutation-groups-sets
      :link-type: doc

      Group actions, orbits and combinatorial invariants.

   .. grid-item-card:: Combinatorial Enumeration
      :link: CombinatorialEnumeration/index-combinatorial-enumeration
      :link-type: doc

      Partitions, permutations and counting algorithms.