Workshop #71 about the topologies of the object #2
Dear friends and colleagues Our last workshop on September 12 is now available on YouTube, there is some delay to find it on Lutecium, it will be available probably soon. But you can have an access to it there: Topologies of the Object #2 <https://youtu.be/Q4gue7KMxjg> the chapters we have been through are: 5. Geometry of the Projective Plane 6. Standing on the Object a 7. Navigate over the Projective Plane; R schema, I Schema 8. Small encounter with the Cross Cap 9. Crossing over the Phantasm (revisited) A third one will take place in October or maybe in November Your comments are welcome All the best Jacques
J'ai réalisé quelques objets 3D manipulables permettant de se représenter le cross-cap, à partir du "pliage" d'une topologie plane, et également de l'obstruction liée à sa représentation par un "recouvrement" sphérique. À toute fin utile... Le vendredi 25 septembre 2026 à 10:50:19 UTC+2, Jacques B. Siboni via Topologos <topologos@lutecium.org> a écrit : Dear friends and colleagues Our last workshop on September 12 is now available on YouTube, there is some delay to find it on Lutecium, it will be available probably soon. But you can have an access to it there: Topologies of the Object #2 the chapters we have been through are: 5. Geometry of the Projective Plane6. Standing on the Object a7. Navigate over the Projective Plane; R schema, I Schema8. Small encounter with the Cross Cap9. Crossing over the Phantasm (revisited) A third one will take place in October or maybe in November Your comments are welcome All the best Jacques -- You are receiving this message because you are subscribed to the "Topologos" mailing list, which now combines the former "lutecium-group" and "topologos-workshop" lists. Topologos mailing list -- topologos@lutecium.org To unsubscribe send an email to topologos-leave@lutecium.org
*Merci beaucoup pour cette synthèse-résumé sur le Cross-Cap.* *C'est très bien fait, très clair, très esthétique. Donc un plaisir du savoir...* *Je suis toujours preneur de sujets sur le genre...* *@+* *Daniel* Le lun. 28 sept. 2026 à 14:03, Alain Simon via Topologos < topologos@lutecium.org> a écrit :
J'ai réalisé quelques objets 3D manipulables <https://www.entropologie.fr/2026/09/le-cross-cap-passage-de-blender-a-unity.html> permettant de se représenter le cross-cap, à partir du "pliage" d'une topologie plane, et également de l'obstruction liée à sa représentation par un "recouvrement" sphérique. À toute fin utile...
Le vendredi 25 septembre 2026 à 10:50:19 UTC+2, Jacques B. Siboni via Topologos <topologos@lutecium.org> a écrit :
Dear friends and colleagues
Our last workshop on September 12 is now available on YouTube, there is some delay to find it on Lutecium, it will be available probably soon. But you can have an access to it there:
Topologies of the Object #2 <https://youtu.be/Q4gue7KMxjg>
the chapters we have been through are:
5. Geometry of the Projective Plane 6. Standing on the Object a 7. Navigate over the Projective Plane; R schema, I Schema 8. Small encounter with the Cross Cap 9. Crossing over the Phantasm (revisited)
A third one will take place in October or maybe in November
Your comments are welcome
All the best
Jacques -- You are receiving this message because you are subscribed to the "Topologos" mailing list, which now combines the former "lutecium-group" and "topologos-workshop" lists. Topologos mailing list -- topologos@lutecium.org To unsubscribe send an email to topologos-leave@lutecium.org -- You are receiving this message because you are subscribed to the "Topologos" mailing list, which now combines the former "lutecium-group" and "topologos-workshop" lists. Topologos mailing list -- topologos@lutecium.org To unsubscribe send an email to topologos-leave@lutecium.org
participants (3)
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Alain Simon -
Daniel Astier -
Jacques B. Siboni