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Dynamics of flows and maps (continuous and discrete time), including infinite-dimensional dynamics, Hamiltonian dynamics, ergodic theory.

3 votes

Counting certain arrangements of n triangles. Does the count grow superexponentially?

Edit: I worked out the details of this exponential upper bound a bit more precisely. It is the case that $S(n) \leq 11*10^n$. I can only prove an exponential upper bound (rather than an exponential …
Louigi Addario-Berry's user avatar