Universality property of free groupoid extensions of halfgroupoids and its geometrical meaning

Václav Havel

Czechoslovak Mathematical Journal (1975)

  • Volume: 25, Issue: 4, page 562-567
  • ISSN: 0011-4642

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Havel, Václav. "Universality property of free groupoid extensions of halfgroupoids and its geometrical meaning." Czechoslovak Mathematical Journal 25.4 (1975): 562-567. <http://eudml.org/doc/12895>.

@article{Havel1975,
author = {Havel, Václav},
journal = {Czechoslovak Mathematical Journal},
language = {eng},
number = {4},
pages = {562-567},
publisher = {Institute of Mathematics, Academy of Sciences of the Czech Republic},
title = {Universality property of free groupoid extensions of halfgroupoids and its geometrical meaning},
url = {http://eudml.org/doc/12895},
volume = {25},
year = {1975},
}

TY - JOUR
AU - Havel, Václav
TI - Universality property of free groupoid extensions of halfgroupoids and its geometrical meaning
JO - Czechoslovak Mathematical Journal
PY - 1975
PB - Institute of Mathematics, Academy of Sciences of the Czech Republic
VL - 25
IS - 4
SP - 562
EP - 567
LA - eng
UR - http://eudml.org/doc/12895
ER -

References

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  1. G. E. Bates, 10.2307/2371882, Amer. Journ. Math. 69 (1947), 499-550. (1947) Zbl0035.01202MR0021001DOI10.2307/2371882
  2. R. H. Bruck, A survey of binary systems, Berlin-Göttingen-Heidelberg 1958. (1958) Zbl0081.01704MR0093552
  3. T. Evans, 10.1112/jlms/s1-24.4.254, Journ. London Math. Soc. 24 (1949), 254-260. (1949) Zbl0034.01304MR0032664DOI10.1112/jlms/s1-24.4.254
  4. W. Peremans., Abstract algebraic systems, Rapport ZW 1949-003 of Math. Centrum Amsterdam, 12 pp.; Math. Rev. 16, 897. (1949) MR0031473
  5. K. Pickert, Projektive Ebenen, Berlin-Göttingen-Heidelberg 1955. (1955) Zbl0066.38707

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