Heegaard Floer homology groups were recently introduced by
Ozsvath and Szabo to study properties of 3-manifolds and knots in
them. The definition of the invariants rests on delicate
holomorphic geometry, making the actual computations
cumbersome...
We present an iterative approach to constructing pseudorandom
generators, based on the repeated application of mild pseudorandom
restrictions. We use this template to construct pseudorandom
generators for combinatorial rectangles and read-once...
