#### Filter Results:

- Full text PDF available (5)

#### Publication Year

2002

2008

- This year (0)
- Last 5 years (0)
- Last 10 years (2)

#### Publication Type

#### Co-author

#### Journals and Conferences

#### Key Phrases

Learn More

- Ioanna Dimitriou, Bernhard Irrgang, +6 authors Natasha Dobrinen
- 2008

s for tutorials Alessandro Andretta, The axiom of determinacy and the Wadge hierarchy page 3 Martin Goldstern Real forcing page 3 Jouko Väänänen Set theory and model-theoretic logics page 4

We study a notion of potential isomorphism, where two structures are said to be potentially isomorphic if they are isomorphic in some generic extension that preserves stationary sets and does not add new sets of cardinality less than the cardinality of the models. We introduce the notion of weakly semiproper trees, and note that there is a strong connection… (More)

Acknowledgements I want to express my sincere gratitude to my supervisor Professor Jouko Väänänen for supporting me during all these years of getting acquainted with the intriguing field of set theory. I am also grateful to all other members of the Helsinki Logic Group for interesting discussions and guidance. Especially I wish to thank Do-cent Tapani… (More)

- H. R. Olesen, A. Baklanov, +17 authors R. Tavares
- 2008

H. R. Olesen, A. Baklanov, J. Bartzis, F. Barmpas, R. Berkowicz, K. Brzozowski, R. Buccolieri, B. Carissimo, A. Costa, S. Di Sabatino, G. Efthimiou, J. Franke, I. Goricsan, A. Hellsten, M. Ketzel, B. Leitl, R. Nuterman, E. Polreich, J. Santiago, R. Tavares NERI, Univ. of Aarhus, Denmark DMI, Denmark; Univ. of West Macedonia, Greece; Aristotle Univ., Greece;… (More)

- Alex Hellsten
- Arch. Math. Log.
- 2006

We extract some properties of Mahlo’s operation and show that some other very natural operations share these properties. The weakly compact sets form a similar hierarchy as the stationary sets. The height of this hierarchy is a large cardinal property connected to saturation properties of the weakly compact ideal. 1 2

- ‹
- 1
- ›