If a separable Banach space X is such that for some nonquasireflexive Banach space Y there exists a surjective stricty singular operator $T : X 'to Y$ then for every countable ordinal $'alpha$ the dual of X contains a subspace whose weak* sequential closures of orders less than $'alpha$ are nowhere norming and whose weak* sequential closure of order $'alpha+1$ coincides with $X*$
The main topic of this thesis is separation of points and w∗ -derived sets in dual Banach spaces. We...
AbstractThe collection of test spaces for the ordinal invariant σ on the category of regular sequent...
summary:A characterization of property $(\beta )$ of an arbitrary Banach space is given. Next it is ...
A Banach space X has a strongly non-norming subspace in its dual if and only if X has infinite codim...
summary:It is proved that a Köthe sequence space is weakly orthogonal if and only if it is order con...
summary:It is proved that a Köthe sequence space is weakly orthogonal if and only if it is order con...
summary:It is proved that a Köthe sequence space is weakly orthogonal if and only if it is order con...
AbstractWe consider several quantities related to weak sequential completeness of a Banach space and...
AbstractWe construct a family (Xγ) of reflexive Banach spaces with long (countable as well as uncoun...
In this paper the weak completeness of certain sequence spaces is examined. In particular, we show t...
AbstractLet B be a Banach space. A B-valued sequence 〈 xk〉 is weakly statistically null provided lim...
summary:We combine the techniques of sequence spaces and general Orlicz functions that are broader t...
summary:We combine the techniques of sequence spaces and general Orlicz functions that are broader t...
AbstractWe study Banach spaces satisfying some geometric or structural properties involving tightnes...
An ordering on bases in Banach spaces is defined as a natural generalization of the notion of equiva...
The main topic of this thesis is separation of points and w∗ -derived sets in dual Banach spaces. We...
AbstractThe collection of test spaces for the ordinal invariant σ on the category of regular sequent...
summary:A characterization of property $(\beta )$ of an arbitrary Banach space is given. Next it is ...
A Banach space X has a strongly non-norming subspace in its dual if and only if X has infinite codim...
summary:It is proved that a Köthe sequence space is weakly orthogonal if and only if it is order con...
summary:It is proved that a Köthe sequence space is weakly orthogonal if and only if it is order con...
summary:It is proved that a Köthe sequence space is weakly orthogonal if and only if it is order con...
AbstractWe consider several quantities related to weak sequential completeness of a Banach space and...
AbstractWe construct a family (Xγ) of reflexive Banach spaces with long (countable as well as uncoun...
In this paper the weak completeness of certain sequence spaces is examined. In particular, we show t...
AbstractLet B be a Banach space. A B-valued sequence 〈 xk〉 is weakly statistically null provided lim...
summary:We combine the techniques of sequence spaces and general Orlicz functions that are broader t...
summary:We combine the techniques of sequence spaces and general Orlicz functions that are broader t...
AbstractWe study Banach spaces satisfying some geometric or structural properties involving tightnes...
An ordering on bases in Banach spaces is defined as a natural generalization of the notion of equiva...
The main topic of this thesis is separation of points and w∗ -derived sets in dual Banach spaces. We...
AbstractThe collection of test spaces for the ordinal invariant σ on the category of regular sequent...
summary:A characterization of property $(\beta )$ of an arbitrary Banach space is given. Next it is ...