| Orateur(s) | David Aspero - University of East Anglia ,
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| Titre | The special $\aleph_2$-Aronszajn tree property and GCH |
| Date | 15/10/2018 |
| Horaire | 15:10 à 16:10 |
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| Diffusion | |
| Résume | Assuming the existence of a weakly compact cardinal, we build a forcing extension in which GCH holds and every $\aleph_2$-Aronszajn tree is special. This answers a well-known question from the 1970's. I will present the proof of this theorem, with as many details as possible. This is joint work with Mohammad Golshani.
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| Salle | https://bigbluebutton.imj-prg.fr/b/sil-gwg-gge |
| Adresse | Sophie Germain |
