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Answers

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17

Video lectures of mathematics courses available online for free

10

Math puzzles for dinner

2

What’s your favorite equation, formula, identity or inequality?

2

Open source mathematical software.

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Using slides in math classroom

3

Generalizations of the Birkhoff-von Neumann Theorem

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non negative integer solutions : Diophantine Equations

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Example of Mobius Inversion on Integer Partition Poset

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Showing that a family of polynomials has positive and real roots.

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Counting integral points of a polytope in R^3 (the c_1 coefficient of Ehrhart polynomial)

5

Rational Dilates of Integral Convex Polytopes

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Lower bound for constrained ordered partitions (i.e., compositions)?