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- Åsvald Lima, Olav Nygaard, Eve Oja
- 2000

Using an isometric version of the Davis, Figiel, Johnson, and Peŀczyński factorization of weakly compact operators, we prove that a Banach spaceX has the approximation property if and only if, for… (More)

- Åsvald Lima, Eve Oja
- 2005

We introduce and investigate the weak metric approximation property of Banach spaces which is strictly stronger than the approximation property and at least formally weaker than the metric… (More)

- Åsvald Lima, Vegard Lima, Eve Oja
- 2010

Let X be a Banach space. For describing the space P(C[0,1],X) of absolutely summing operators from C[0,1] to X in terms of the space X itself, we construct a tree space l1tree(X) on X. It consists of… (More)

- Eve Oja
- 1998

- Åsvald Lima, Eve Oja
- 1999

- Åsvald Lima, Eve Oja
- 2002

Let X C Y be Banach spaces and let A C B be closed operator ideals. Let Z be a Banach space having the Radon-Nikodym property. The main results are as follows. If Φ: A(Z,X)* → B(Z, Y)* is a… (More)

- Aleksei Lissitsin, Eve Oja
- 2011

We study the convex approximation property of Banach spaces to provide a unified approach to various approximation properties including, besides the classical ones, e.g., the positive approximation… (More)

- Eve Oja
- 2000

Let a, c ≥ 0 and let B be a compact set of scalars. We introduce property M∗(a, B, c) of Banach spaces X by the requirement that lim sup ν ‖axν + bx∗ + cy∗‖ ≤ lim sup ν ‖xν‖ ∀b ∈ B whenever (xν) is a… (More)

LetX and Y be Banach spaces such thatX has a boundedly complete basis. Then X⊗Y , the projective tensor product of X and Y , has the Radon-Nikodym property (resp. the analytic Radon-Nikodym property,… (More)

- Eve Oja
- 1998