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math.FA2009
Zero subspaces of polynomials on l1(Gamma)
Antonio Avilés, Stevo Todorcevic
We provide two examples of complex homogeneous quadratic polynomials P on Banach spaces of the form l_1(I). The first polynomial P has both separable and nonseparable maximal zero…
math.FA2006
A -saturated Banach space with no long unconditional basic sequences
Jordi Lopez Abad, Stevo Todorcevic
We present a Banach space with a Schauder basis of length which is saturated by copies of and such that for every closed decomposition of a closed subsp…