Matrix transformations involving analytic sequence spaces.
Matrix transformations involving analytic sequence spaces (Errata).
Matrix transformations of starshaped sequences.
Matrix Transormations of Almost Convergent Sequenes. II.
Matrixtransformationen dualer Folgenräume.
Matrixtransformationen von Folgenräumen. Eine Ergebnisübersicht.
Measure and category---some non-analogues.
Mercerian theorems for Beekmann matrices.
Mercerian-type theorems for absolute summability
More on set-theoretic characteristics of summability of sequences by regular (Toeplitz) matrices
Necessary and sufficient conditions under which convergence follows from summability by weighted means.
Necessary and sufficient Tauberian conditions for the logarithmic summability of functions and sequences
Let s: [1,∞) → ℂ be a locally Lebesgue integrable function. We say that s is summable (L,1) if there exists some A ∈ ℂ such that , where . (*) It is clear that if the ordinary limit s(t) → A exists, then also τ(t) → A as t → ∞. We present sufficient conditions, which are also necessary, in order that the converse implication hold true. As corollaries, we obtain so-called Tauberian theorems which are analogous to those known in the case of summability (C,1). For example, if the function s is slowly...
Negative Resultate über Tauber-Bedingungen.
Noninclusion theorems for summability matrices.
Noninclusion theorems: Some remarks on a paper by J. A. Fridy.
Norm-preserving L-L integral transformations.
Normvergleich bei abschnittsbeschränkten Limitierungsverfahren.
On a representation theorem of Goes for null sequences.
On -summability of orthogonal series
In the paper, we prove two theorems on summability, , of orthogonal series. Several known and new results are also deduced as corollaries of the main results.
On analytic continuation of summability transforms.