His father, Czeslaw Janiszewski, was a graduate of the University of Warsaw and was an important person in finance, being the director of the Société du Crédit Municipal in Warsaw.
Janiszewski started out with the assumption that Polish mathematicians do not have to be satisfied with the role of followers and customers of foreign mathematical centres but can achieve an independent position for Polish mathematics.
Janiszewski saw that mathematics was one scientific subject where Poland could rapidly reach a leading role, whereas other sciences required a much larger financial investment which Poland was not then in a position to give.
Janiszewski next went to one of the other leading centres of mathematics in the world, namely Paris.
As early as 1917 [Janiszewski and Mazurkiewicz] were conducting a topology seminar, presumably the first in that new, exuberantly developing field.
Janiszewski played a major role in the setting up of the journal Fundamenta Mathematicae and Kuratowski recalls that it was Janiszewski who proposed the name of the journal in 1919.
Topology (Greek topos, place and logos, study) is a branch of mathematics concerned with spatial properties preserved under bicontinuous deformation (stretching without tearing or gluing); these are the topological invariants.
His father, Czeslaw Janiszewski, was a graduate of the University of Warsaw and was an important person in finance, being the director of the Société du Crédit Municipal in Warsaw.
Janiszewski played a major role in the setting up of the journal Fundamenta Mathematicae and Kuratowski recalls that it was Janiszewski who proposed the name of the journal in 1919.
ZygmuntJaniszewski outlined the plan for what was to be the Polish School of Mathematics.
As noted above, Janiszewski, along with Stefan Banach, Waclaw Sierpinski, and Stanislaw Zaremba were all instrumental in the development of the Polish School of Mathematics; Poland issued stamps in their honor on the occasion of the 1982 International Congress of Mathematicians, actually held in Warsaw in 1983.
While Janiszewski was born in Warsaw, he received his secondary education in Lwów; he then went abroad to study in Zurich, Munich, and Göttingen before receiving his degree in Paris in 1911 with a thesis written under Lebesgue.
Bolton Council planted the tree, which has colourful bright green leaves, on the verge outside ZygmuntJaniszewski's home in Tottington Road seven years ago.
Retired photographer Zygmunt feared the tree may die but managed to wire the trunk together and it survived.
Zygmunt is determined that the tree -- which he says gives much pleasure in the neighbourhood and has now been replanted -- will not die.
The program for the development of mathematics elaborated by a mathematician ZygmuntJaniszewski (the Janiszewski program) had a great importance for the subsequent development of the LWS.
According the Janiszewski program, Polish mathematicians should concentrate on set theory, topology and their applications to other branches of mathematics.
In particular, the Janiszewski program attached great importance to mathematical logic and the foundations of mathematics.
In 1919 he was promoted to professor at Warsaw and he spent the rest of his life there.
In 1920 Sierpinski, together with ZygmuntJaniszewski and his former student Stefan Mazurkiewicz, founded the important mathematics journal Fundamenta Mathematica.
Sierpinski edited the journal, which specialized in papers on set theory.
American Mathematical Monthly, The: Origin and Early Impact of the Moore Method, The(Site not responding. Last check: 2007-10-22)
In the same volume of Fundamenta Mathematicae, R. Moore made use of the result in solving a problem posed by Waclaw Sierpinski.
Moore indicated that another paper in that volume had informed him that ZygmuntJaniszewski had actually proved the result several years before Mullikin, but it was written in Polish in a journal dedicated to mathematical physics.
Moore himself had not seen the original paper, and would not have been able to read it even if he had, so he acknowledged that neither Mullikin nor he "was aware that the proposition had already been proved" [34, p.
A Hungarian stamp commemorating a mathematical congress shows a design of Sierpinski pyramids, with Michelangelo's hand of God from the Sistine Chapel ceiling thrown in for good measure.A full description of the Polish School of Mathematics appears here.
Some of its illustrious members included in a set with Sierpinski are Stanislaw Zaremba (1863-1942), Stefan Banach (1892-1945), and ZygmuntJaniszewski (1888-1920).
Stamps commemorating mathematical congresses often use eye-catching figures to draw attention.
