Search Results - "Kalton, N. J."

Uniform homeomorphisms of Banach spaces and asymptotic structure by KALTON, N. J.

“…<<; in particular we give some new examples of spaces with unique uniform structure.]]>…”
Get full text

Twisted sums with C(K) spaces by Sánchez, F. Cabello, Castillo, J. M. F., Kalton, N. J., Yost, D. T.

“…If X is a separable Banach space, we consider the existence of non-trivial twisted sums 0\to C(K)\to Y\to X\to 0, where K=[0,1] or \omega^{\omega}. For the…”
Get full text

The thresholding greedy algorithm, greedy bases, and duality by DILWORTH, S. J, KALTON, N. J, KUTZAROVA, Denka, TEMLYAKOV, V. N

Get full text

A remark on quasi-isometries by Kalton, N. J.

“…We show that if f:B_n\to\mathbb R^n is an \epsilon-quasi-isometry, with \epsilon<1, defined on the unit ball B_n of \mathbb R^n, then there is an affine…”
Get full text

Hermitian operators on complex Banach lattices and a problem of Garth Dales by Kalton, N. J.

“…Let E⊕F be a direct sum decomposition of a complex Banach lattice X. Garth Dales asked recently whether the equation ‖x+y‖=‖ |x|∨|y| ‖ for all x∈E and y∈F…”
Get full text

Szlenk indices and uniform homeomorphisms by Godefroy, G., Kalton, N. J., Lancien, G.

“…We prove some rather precise renorming theorems for Banach spaces with Szlenk index \omega_0. We use these theorems to show the invariance of certain…”
Get full text

The range of operators on von Neumann algebras by Bermúdez, Teresa, Kalton, N. J.

“…We prove that for every bounded linear operator T:X\to X, where X is a non-reflexive quotient of a von Neumann algebra, the point spectrum of T^* is non-empty…”
Get full text

Nonlinear equations and weighted norm inequalities by Kalton, N. J., Verbitsky, I. E.

“…We study connections between the problem of the existence of positive solutions for certain nonlinear equations and weighted norm inequalities. In particular,…”
Get full text

COARSE AND UNIFORM EMBEDDINGS INTO REFLEXIVE SPACES by Kalton, N. J.

“…Answering an old problem in nonlinear theory, we show that c0 cannot be coarsely or uniformly embedded into a reflexive Banach space, but that any stable…”
Get full text

Banach spaces embedding isometrically into L_p when 0<p<1 by Kalton, N. J., Koldobsky, A.

“…For 0<p<1 we give examples of Banach spaces isometrically embedding into L_p but not into any L_r with p<r\le 1…”
Get full text

Invariant subspaces and the exponential map by ATZMON, A, GODEFROY, G, KALTON, N. J

“…Bounded operators with no non-trivial closed invariant subspace have been constructed by P. Enflo. In fact, there exist bounded operators on the space l1 with…”
Get full text

RADEMACHER BOUNDED FAMILIES OF OPERATORS ON L1 by KALTON, N. J, KUCHERENKO, T

Get full text

Rademacher bounded families of operators on L_1 by N. J. Kalton, T. Kucherenko

“…We give a characterization of R-bounded families of operators on L_1. We then use this result to study sectorial operators on L_1. We show that if A is an…”
Get full text

A Characterization of Real C(K)-Spaces by Albiac, F., Kalton, N. J.

“…A characterization of real Banach algebras that are isometrically isomorphic to (real) spaces C(K) of continuous functions on compact Hausdorff Spaces K is…”
Get full text

Uniqueness of unconditional bases in Banach spaces by Casazza, P. G., Kalton, N. J.

“…We prove a general results on complemented unconditional basic sequences in Banach lattices and apply it to give some new examples of spaces with unique…”
Get full text

On Subspaces of c0 and Extension of Operators into C(K)‐Spaces by Kalton, N. J.

“…Johnson and Zippin recently showed that if X is a weak*‐closed subspace of ℓ1 and T : X → C(K) is any bounded operator then T can be extended to a bounded…”
Get full text

The uniform structure of Banach spaces by Kalton, N. J.

“…We explore the existence of uniformly continuous sections for quotient maps. Using this approach we are able to give a number of new examples in the theory of…”
Get full text

Banach Spaces Embedding Isometrically into Lp When $0<p<1 by Kalton, N. J., Koldobsky, A.

“…For $0<p<1$ we give examples of Banach spaces isometrically embedding into Lp but not into any Lr with $p<r\leq 1$…”
Get full text

Examples of uniformly homeomorphic Banach spaces by Kalton, N. J.

“…We give several examples of separable Banach spaces which are nonisomorphic but uniformly homeomorphic. For example, we show that for every 1 < p ≠ 2 < ∞ there…”
Get full text

Differentials of Complex Interpolation Processes for Köthe Function Spaces by Kalton, N. J.

“…We continue the study of centralizers on Köthe function spaces and the commutator estimates they generate (see [29]). Our main result is that if X is a…”
Get full text