Note on Köthe Spaces.
Note on the convergence of iterates
Nuclear FK-Sum Spaces.
Nuclear Fréchet Spaces with Locally Round Finite Dimensional Decompositions.
Nuclear Fréchet spaces without the bounded approximation property
Nuclear spaces of maximal diametral dimension
On a Barrelled Space of Class ... and Measure Theory.
On a class of difference sequences related to the space defined by Orlicz functions
On a class of nuclear spaces - I
On a class of sequences related to the space defined by a sequence of Orlicz functions
On a class of universal Orlicz function spaces
On a Tensor Product Characterization of Nuclearity.
On bases and the shift operator
On Biorthogonal Systems and Total Sequences of Functionals.
On certain subspaces of a nuclear power series spaces of finite type
On complemented subspaces and unconditional bases in
On complemented subspaces of some Köthe spaces of infinite type.
On complete, precompact and compact sets.
Completeness criterion of W. Robertson is generalized. Applications to vector valued sequences and to spaces of linear mappings are given.
On discrete subspaces of a Hilbert space
On Dragilev type power Köthe spaces
A complete isomorphic classification is obtained for Köthe spaces such that ; here χ is the characteristic function of the interval [0,∞), the function κ: ℕ → ℕ repeats its values infinitely many times, and . Any of these spaces has the quasi-equivalence property.