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math.FA2008
Majorizing measures and proportional subsets of bounded orthonormal systems
Olivier Guedon, Shahar Mendelson, Alain Pajor +1
In this article we prove that for any orthonormal system $(\vphi_j)_{j=1}^n \subset L_2$ that is bounded in , and any , there exists a subset of cardinali…
math.FA2005★ 29 cited
Reconstruction and subgaussian operators
Shahar Mendelson, Alain Pajor, Nicole Tomczak-Jaegermann
We present a randomized method to approximate any vector from some set . The data one is given is the set , and scalar products $(\inr{X_i,v})_{i=1}^k$,…