Combinatorics is an area of mathematics primarily concerned with counting, both as a means and an end in obtaining results, and certain properties of finite structures....
Combinatorics is an area of mathematics primarily concerned with counting, both as a means and an end in obtaining results, and certain properties of finite structures....
Pigeon hole principle - (Part 1)
58mPigeon hole principle - (Part 2)
58mPigeon hole principle - (Part 3)
59mPigeon hole principle - (Part 4)
59mElementary concepts and basic counting principles
57mElementary concepts; Binomial theorem; Bijective proofs - Part (1)
59mBijective proofs -- Part (2)
58mBijective proofs - Part (3); Properties of bin
59mCombinatorial identities - Part (2); Permuta
59mPermutations of multisets -- Part (2)
59mMultinomial Theorem, Combinations of Multisets
57mCombinations of Multisets - Part (2)
56mCombinations of Multisets -- Part (3), Bounds
1h 61 minSterling's Formula, Generalization of Bino
58mGeneralization of Binomial coefficients - Part (2)
57mGeneralization of Binomial coefficients - Part (3); Double counting - Part (1)
59mDouble counting - Part (2)
59mHall's Theorem for regular bipartite graph
59mInclusion exclusion principle - Part (2)
59mInclusion exclusion principle - Part (3)
57mInclusion exclusion principle - Part (4)
59mInclusion exclusion principle - Part (5)
58mRecurrence Relations - Part (1)
58mRecurrence Relations - Part (2)
56mRecurrence Relations - Part (3)
58mRecurrence Relations - Part (4)
58mRecurrence Relations - Part (5)
58mGenerating functions - Part (1)
59mGenerating functions - Part (2)
59mSolving recurrence relations using generating functions - Part (1)
59mSolving recurrence relations using generating functions - Part (2)
59mExponential generating functions - Part (1)
59mExponential generating functions - Part (2), Partition Number - Part (1)
57mPartition Number - Part (2)
58mPartition Number - Part (3)
56mPartition Number - Part (4); Catalan Numbers - Part (1)
58mCatalans Numbers - Part (2)
57mCatalan Numbers - Part (3), Sterling numbers of the 2nd kind
58mDifference Sequences
59mSterling Numbers
59mSummary
18m