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Exponential Riesz bases, discrepancy of irrational rotations and BMO
Exponential Riesz bases discrepancy of irrational rotations BMO
2010/12/3
Matei and Meyer proved that ‘simple quasicrystals’ are universal sets of sampling and interpolation for signals with a band-limited spectrum. We ask if the corresponding exponential system is a univer...
Immersions Preserved Under Rotations with Totally Reducible Focal Set
Critical point theory Focal points Focal sets Totally reducible focal sets Flat normal bundles. M.R. Number. 53C40, 53C42
2010/3/5
In [1] Carter and the author introduced the idea of an immersion f : Mm-+ Rn with totally reducible focal set (TRFS). Such an immersion has the property that, for all p E M, the focal set with base p ...