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Let the stick number s(K) of a knot K be the least number of straight sticks needed to make a knot K. The smallest stick number of any knot is s(T)=6, where T is the trefoil ...

A periodic continued fraction is a continued fraction (generally a regular continued fraction) whose terms eventually repeat from some point onwards. The minimal number of ...

A pairing function is a function that reversibly maps Z^*×Z^* onto Z^*, where Z^*={0,1,2,...} denotes nonnegative integers. Pairing functions arise naturally in the ...

Solve the Pell equation x^2-92y^2=1 in integers. The smallest solution is x=1151, y=120.

A complex polynomial is a polynomial with complex coefficients.

In the American system, 10^(33).

An analytic, Borel, or coanalytic set.

A transformation which has only trivial invariant subsets is said to be ergodic.

The multiplicity of a multigraph is its maximum edge multiplicity.

Combine the two above squares on the left into the single large square on the right.