O istých konvergentných postupnostiach dvojakých priemerov
O jedné trigonometrické identitě
O jednej Chinčinovej vete
O přerovnávání řad
O proměnlivosti součtu zvláštní nekonečné řady s nestejným označením členů
O soustavách bodů a jich významu v analysi
O souvislosti kriterií konvergence nekonečných řad
Obecné kriterium konvergence nekonečných řad a integrálů
On a certain class of always convergent sequences and the Rayleigh quotient iterations
On a certain series
On a class of difference sequences related to the space defined by Orlicz functions
On a class of sequences defined by using Riemann integral.
On a Generalization of the Richardson Extrapolation Process.
On A Hypothesis Of D. Adamović Concerning Asymptotic Behaviour Of Some Complex Sequences
On a -analogue of Sándor's function.
On a representation theorem of Goes for null sequences.
On a Theorem of M. Vuilleumier
On a typical property of functions
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 absolutely divergent series
We show that in the -stage countable support iteration of Mathias forcing over a model of CH the complete Boolean algebra generated by absolutely divergent series under eventual dominance is not isomorphic to the completion of P(ω)/fin. This complements Vojtáš’ result that under the two algebras are isomorphic [15].