We will show that the following set theoretical assumption \continuum=\omega2, the dominating number d equals to \omega1, and there exists an \omega1-generated Ramsey ultrafilter on \omega (which is consistent with ZFC) implies that for an arbitrary sequence fn:R--\u3eR of uniformly bounded functions there is a subset P of R of cardinality continuum and an infinite subset W of \omega such that {fn|P: n in W} is a monotone uniformly convergent sequence of uniformly continuous functions. Moreover, if functions fn are measurable or have the Baire property then P can be chosen as a perfect set. We will also show that cof(null)=\omega1 implies existence of a magic set and of a function f:R--\u3eR such that f|D is discontinuous for every D whi...
Let X = {x1, x2, ...} be a countably infinite topological space; then the space C*(X) of all bounded...
For a topological space X, let (RX)s := (RX,Ts) be the cartesian product of |X| copies of the real l...
AbstractWe show the consistency of: the set of regular cardinals which are the character of some ult...
We will show that the following set theoretical assumption \continuum=\omega2, the dominating numb...
We study some limitations and possible occurrences of uniform ultrafilters on ordinals without the a...
summary:Suppose that $X$ is a Fréchet space, $\langle a_{ij}\rangle$ is a regular method of summabil...
summary:Suppose that $X$ is a Fréchet space, $\langle a_{ij}\rangle$ is a regular method of summabil...
It is shown that the consistency strength of ZF + DC + "the closed unbounded ultrafilter on omega_1 ...
AbstractThe theory of regular variation is largely complete in one dimension, but is developed under...
AbstractKaramata theory (N.H. Bingham et al. (1987) [8, Ch. 1]) explores functions f for which the l...
In the following κ and λ are arbitrary regular uncountable cardinals. What was known? Theorem 1 (Bal...
Suppose (k(n))(n >= 1) is Hartman uniformly distributed and good universal. Also suppose psi is a po...
This note shows that if a subset S of R is such that some continuous function f from R to R has the ...
This note shows that if a subset S of R is such that some continuous function f from R to R has the ...
We prove the consistency of: for suitable strongly inaccessible cardinal lambda the dominating numbe...
Let X = {x1, x2, ...} be a countably infinite topological space; then the space C*(X) of all bounded...
For a topological space X, let (RX)s := (RX,Ts) be the cartesian product of |X| copies of the real l...
AbstractWe show the consistency of: the set of regular cardinals which are the character of some ult...
We will show that the following set theoretical assumption \continuum=\omega2, the dominating numb...
We study some limitations and possible occurrences of uniform ultrafilters on ordinals without the a...
summary:Suppose that $X$ is a Fréchet space, $\langle a_{ij}\rangle$ is a regular method of summabil...
summary:Suppose that $X$ is a Fréchet space, $\langle a_{ij}\rangle$ is a regular method of summabil...
It is shown that the consistency strength of ZF + DC + "the closed unbounded ultrafilter on omega_1 ...
AbstractThe theory of regular variation is largely complete in one dimension, but is developed under...
AbstractKaramata theory (N.H. Bingham et al. (1987) [8, Ch. 1]) explores functions f for which the l...
In the following κ and λ are arbitrary regular uncountable cardinals. What was known? Theorem 1 (Bal...
Suppose (k(n))(n >= 1) is Hartman uniformly distributed and good universal. Also suppose psi is a po...
This note shows that if a subset S of R is such that some continuous function f from R to R has the ...
This note shows that if a subset S of R is such that some continuous function f from R to R has the ...
We prove the consistency of: for suitable strongly inaccessible cardinal lambda the dominating numbe...
Let X = {x1, x2, ...} be a countably infinite topological space; then the space C*(X) of all bounded...
For a topological space X, let (RX)s := (RX,Ts) be the cartesian product of |X| copies of the real l...
AbstractWe show the consistency of: the set of regular cardinals which are the character of some ult...