Štefan Znám
Štefan Znám (9 February 1936, Veľký Blh – 17 July 1993, Bratislava) was a Slovak- Hungarian mathematician, believed to be the first to ponder Znám's problem in modern times.
Znám worked in the field of number theory and graph theory. He also co-founded journal Matematické obzory.
His Erdős number is 2 by at least six different paths. For example, in 1968, Znám wrote a paper on "Strongly geodetic graphs" with Juraj Bosák in the Journal of Combinatorial Theory. Three years later, Bosák co-authored "Decompositions of complete graphs into factors with diameter two" with Erdős and Alexander Rosa in Matematický Časopis Slovenskej Akadémie Vied.
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