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Answers
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What do we call a set that has one or fewer elements?
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Subwords of cube-free binary words
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Multivariable Calculus Lecture Ideas
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Cylinders dividing $\mathbb{R}^{3}$
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A function that is defined everywhere but has unknown values
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Who uses keywords (and how)?
2
regular graph construction
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Consecutive composite numbers
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Undergraduate Topology
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Subset of edges of graph touching all vertices such that all paths consist of at most two edges
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Empty lattice simplex or White’s theorem
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A generalization of the triangle counting problem for simple weighted graphs
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what is the cycle length of the maximum normalized cycle in the directed complete graph?
11
Justifying/Explaining math research in a public address
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String possible combinations
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Consecutive integers with no large prime factors
4
A prime number pattern
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Approximate version of a balanced incomplete block diagram
2
Almost all loops have a trivial automorphism group; almost all groups have a non-trivial automorphism group. What goes on in between?
3
number of zeroes in 100 factorial.
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Tessellating $\mathbb{R}^n$ by bricks.
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ULTRAINFINITISM, or a step beyond the transfinite
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Largest graphs of girth at least 6
2
On a sum involving prime numbers
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Stick knot questions: simple but may not be easy
4
Covering a unit ball with balls half the radius
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Two definitions of graph connectedness
1
Do you use the Mathematics Subject Classification (MSC) when searching for literature?
1
Examples of interesting false proofs
2
For an approach to the Hadamard-matrix-problem: is there a proof, that the iterative plane-wise orthogonal rotations (Quartimax/Varimax) converge to global maximum?
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