EuDML | Browse

Items

All a b c d e f g h i j k l m n o p q r s t u v w x y z Other

Previous Page 6 Next

Displaying 101 – 120 of 159

On the $A$ -continuity of real function. II.

Jozef Antoni (1986)

Mathematica Slovaca

On the generalizations of two Ozeki's results

J. E. Pečarić (1982)

Matematički Vesnik

On the statistical and σ-cores

Hüsamettın Çoşkun, Celal Çakan, Mursaleen (2003)

Studia Mathematica

In [11] and [7], the concepts of σ-core and statistical core of a bounded number sequence x have been introduced and also some inequalities which are analogues of Knopp’s core theorem have been proved. In this paper, we characterize the matrices of the class ${(S \cap m, V_{σ})}_{r e g}$ and determine necessary and sufficient conditions for a matrix A to satisfy σ-core(Ax) ⊆ st-core(x) for all x ∈ m.

On the Summability of Subsequences

Jozef Antoni (1971)

Matematický časopis

Permanenz- und Taubersätze bei pV-Summierung.

Hubert Tietz (1973)

Journal für die reine und angewandte Mathematik

Rate preservation of double sequences under $l$ - $l$ type transformation.

Patterson, Richard F. (2002)

International Journal of Mathematics and Mathematical Sciences

Sequences of 0's and 1's

Grahame Bennett, Johann Boos, Toivo Leiger (2002)

Studia Mathematica

We investigate the extent to which sequence spaces are determined by the sequences of 0's and 1's that they contain.

Sequences of 0's and 1's: sequence spaces with the separable Hahn property

Maria Zeltser (2007)

Studia Mathematica

In [3] it was discovered that one of the main results in [1] (Theorem 5.2), applied to three spaces, contains a nontrivial gap in the argument, but neither the gap was closed nor a counterexample was provided. In [4] the authors verified that all three above mentioned applications of the theorem are true and stated a problem concerning the topological structure of one of these three spaces. In this paper we answer the problem and give a counterexample to the theorem in doubt. Also we establish a...