Vol. 5 (2019)

Experiences & Research Articles

• Semigroups, monoids and free groups

  633-648

  • PDF (Italiano)
• Stick, twine and a pinch of the internet: we measure the Earth today with the method of Eratosthenes

  Massimo Trizio, Stefania Donadio

  649-673

  • PDF (Italiano)
• Upper singular braid monoid SBn+

  Panagiote Ligouras

  675-687

  • PDF
• The regular heptagon

  Sotìris Goudouvàs

  689-695

  • PDF
• Singular pure braid group SPn

  Filomena Pisani

  697-703

  • PDF