EMIS ELibM Electronic Journals PUBLICATIONS DE L'INSTITUT MATHÉMATIQUE (BEOGRAD) (N.S.)
Vol. 44(58), pp. 19-- (1988)

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RAMIFICATION HYPOTHESIS AGAIN

Djuro R. Kurepa

Matematicki institut SANU, Beograd, Yugoslavia

Abstract: To the $RH$ (Ramification Hypothesis = Proposition 1 in Kurepa [1935:2,3 p. 130] we join here proposition $P_0'(s. 3:2)$, $P_{18},P_{19},\ldots,P_{45}$, each equivalent to $RH$; we stress in particular $P_{18} := P_s:$ For every branching tree $T$ the width $p_sT^2$ of the cardinal square of $T$ equals $p_sT$. (s. 1:0) and is attained (s. No. 3).

Classification (MSC2000): 04A10; 05C38

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Electronic fulltext finalized on: 2 Nov 2001. This page was last modified: 16 Nov 2001.

© 2001 Mathematical Institute of the Serbian Academy of Science and Arts
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