January 29-February 4 Winter school in abstract analysis, section set theory/topology, Hejnice

February 27-March 2 Second set theory and general topology week, Bahia

March 3 Appalachain set theory, Carnegie Mellon

March 31-April 3 ASL North American Annual Meeting, Madison

April 7 Appalachian set theory, Cornell

April 30-May 4 5th Young set theory workshop, Luminy

June 1-3 Mini-workshop on inner model theory and descriptive set theory, North Texas

June 4-8 Logic, dynamics and their interactions, North Texas

June 4-8 15th Latin American Symposium on mathematical logic, Bogota

July 2-7 6th European congress of mathematics Krakow

July 8-11 Trends in set theory, Warsaw

July 12-18 Logic Colloquium, Manchester

We are sorry to share the sad news that James E. Baumgartner, one of the greatest set theorists, died of a heart attack on December 28. Jim was born in 1943 and started as a student at Caltech and then moved to Berkeley where he received his PhD under the supervision of Robert Vaught in 1970. He spent most of his career at Dartmouth College where he trained numerous PhD students, among them Jean Larson, Tadatoshi Miyamoto, Alan Taylor and Stan Wagon, and postdocs, including Alessandro Andretta, Jorg Brendle, Elizabeth Brown, James Cummings, Jean-Pierre Levinski, Stevo Todorcevic and Jindrich Zapletal.

Baumgartner’s mathematical career started with a wonderful proof of the consistency that every Aronszajn tree is special (independently obtained by Reindhart and Malitz, and published as a joint paper). His later consistency result that all aleph_1 dense sets of reals can be isomorphic initiated a long series of important contributions in this direction. His joint work with Hajnal to prove omega_1 arrows (alpha)^2_n, for all countable alpha and finite n using the methods of
forcing and absolutness was a real breakthrough that has become known as the Baumgartner-Hajnal Theorem.

Together with Laver, Baumgartner studied countable support iterations of Sacks forcing and later isolated an important class of forcing notions which can be iterated without collapsing \aleph_1: Axiom A forcings. Following the work of Shelah on proper forcing, Baumgartner formulated and proved the relative consistency of the Proper Forcing Axiom, which has become one of the most studied additional axioms of set theory. In addition, he developed general techniques for building proper partial orders by using side conditions and obtained numerous consequences of PFA. In all his papers, Jim showed extreme originality and clarity. In addition he wrote many survey papers which have inspired young set theorists: his introduction to iterated forcing is still one of the basic references in this area, as well as his beautiful surveys on uncountable linear orders and on applications of the Proper Forcing Axiom.

In spite of his great talent and achievements he never put his own work in front of that of the others and generously helped all who came across him as students and colleagues. His mathematical genius and humanity were a constant inspiration for young mathematicians following in his footsteps. He will be deeply missed by his friends and colleagues.

[This post prepared by Mirna Dzamonja, Jean Larson and Boban Velickovic].

1) The Infinity Conference. 18-22 July, 2011. Bellaterra (CRM), Catalonia – Spain. (in progress)
2) 14th Congress of Logic, Methodology and Philosophy of Science. 19-26 July 2011. Nancy, France.
3) Modern Set Theory: Foundations & Applications. INFTY Workshop at the ESSLLI 2011. 1-5 August 2011. Ljubljana, Slovenia.
4) Set theory and higher-order logic: foundations and mathematical developments. 1-14 August, 2011. London, United Kingdom.
5) Advanced Course and Workshop on Large-Cardinal Methods in Homotopy. 1-8 September 2011. Barcelona, Catalonia – Spain.

- via Inftynet -

Below are the available slides from invited talks:

1. Measuring sequences of closed sets together with CH, David Aspero
2. Unprepared indestructibility, Andrew Brooke Taylor
3. The descriptive set theory of the Lebesgue density theorem, Ricardo Camerlo
4. Canonical Ramsey Theorems and applications in the Tukey theory of ultrafilters, Natasha Dobrinen
5. Some ideals and ultrafilters on the natural numbers, Jana Flaskova
6. Set theory and C*-algebras, Ilijas Farah
7. On effective compactness and sigma-compactnes, Vladimir Kanovei
8. Some cardinal invariants on Banach spaces, Piotr Koszmider
9. A dual Ramsey result for finite co-structures, Alain Louveau
10. More preservation properties for non-elementary proper forcings, Heike Mildenberger
11. The smooth ideal, Ben Miller
12. Baire measurability in some C(K) spaces, Grzegorz Plebanek
13. On bounded representations and maximal symmetry, Christian Rosendal
14. On properties of families of sets, Lajos Soukup
15. Transfinite Ehrenfeucht-Fraissé games, Boban Velickovic
16. On the relation between PFA and supercompactness, Matteo Viale

The Third European Set Theory Meeting will take place July 4 -7 2011
in Edinburgh. The meeting is now open for applications for those who
wish to attend.

The conference is funded jointly by ESF-ERCOM and the International Centre for
Mathematical Sciences in Edinburgh (with further support from the INFTY Project).
See the nascent website of the meeting.

There are limited number of places available, and according to ESF procedures, there
is a Conference Fee and an application process which asks those wishing to
attend to fill out an on-line application form here:

There is a DEADLINE for this of March 27th. Soon thereafter applicants will be notified of the outcome.
It is hoped that, as in the previous two meetings at Bedlewo, there will be the possibilities of grants to
assist with attendance of younger researchers.

[NB The ESF webform offers the possibility of applicants giving "short talks": in fact there will not be such,
but only Invited Speakers. There will be the opportunity of a Poster Session, if colleagues wish to submit a poster.]

Invited Speakers include: (* = Unconfimed):

Kechris, Aleckos (Caltech)
Aczel, Peter (Manchester)
*Todorcevic, Stevo (Paris VII & Toronto)
*Louveau, Alain (Paris VI & CNRS)
Velickovic, Boban (Paris VII)
Rosendal, Christian (UI at Chicgo)
*Hugh Woodin (Berkeley)
Farah, Ilias (York, Canada)
Viale, Matteo (Torino)
Kanovei, Vladimir (Moscow)
*Camerlo, Riccardo (Torino)
Sinapova, Dima (UCI)
Mildenberger, Heike (Freiburg)
Brooke-Taylor, Andrew (Bristol)
Dobrinen, Natasha (Denver)
Rinot, Assaf (Tel Aviv)
Soukup, Lajos (Budapest)
*Aspero, David (Bogota)
Koszmider, Piotr (TU Lodz),
Avraham, Uri (Ben Gurion Univ.)
*Miller, Ben (Muenster)
Schindler, Ralf-Dieter (Muenster)
Schimmerling, Ernest (Carnegie-Mellon)
Plebanek, Gregorsz (Wroclaw)
van den Berg, Benno (TU Darmstadt)
Flaskova, Jana (West Bohemia in Pilsen)

Tutorials:

Ali Enayat (Washington)
Joel David Hamkins (New York)
Slawomir Solecki (Urbana-Champaign)
Juris Steprans (Toronto)

Invited talks:

Samuel Coskey (Toronto)
Dilip Raghavan (Toronto)
Assaf Rinot (Beer Sheva)
Grigor Sargsyan (Los Angeles)
David Schrittesser (Vienna)
Katherine Thompson (Vienna)

All participants will be asked to write a one-page statement about their research which will be made available to all participants at the conference. Each afternoon, discussion sessions will be formed for those working in similar areas and more general sessions for those interested in getting an overview of the latest research in each branch of set theory.

Please register at ystw2011@hcm.uni-bonn.de as soon as possible to be guaranteed a place. The registration fee of 350 Euros covers the accommodation in double rooms and meals. The deadline for registration is January 3, 2011.

Travel and/or accommodation grants are available. The grant application deadline is December 10, 2010. To apply, please send an email to ystw2011@hcm.uni-bonn.de and include your one-page research statement. In order to provide funding, the Hausdorff Center will require a signed statement that you do not have funding
from your university or from a grant for this conference.

Organizing committee:

Andrew Brooke-Taylor (Bristol)
Benjamin Seyfferth (Bonn)
Ioanna Dimitriou (Bonn), website
Miguel Angel Mota(Vienna)
Philipp Schlicht (Bonn), chair
Thilo Weinert (Bonn)

Scientific Committee:

Bart Kastermans (Boulder), chair
Daisuke Ikegami (Helsinki)
Julien Melleray (Lyon)
Marcin Sabok (Warsaw)
Sean Cox (Münster)
Thomas Johnstone (New York)
Vera Fischer (Vienna)

More information can be found on the conference website.

The scientific program can be found here. The list of participants can be seen here.
Minicourses were given by Ben Miller and Hugh Woodin. Notes taken by Andrés Caicedo of Woodin’s mini course can be found here here on Caicedo’s blog. Below are the available slides and abstracts:

1. Forcing With Ultralters and Forcing Ultralters, Andreas Blass
2. Combinatorics of $F_\sigma$-quotients, Joerg Brendle
3. $G_0$-dichotomies for $\infty$-Borel sets, Andrés Caicedo
4. The tree property revisited, James Cummings
5. SUSIFA, a new kind of forcing axiom, Mirna Dzamonja
6. Shelah classification and higher descriptive set theory, Sy Friedman
7. Extensions of partial colorings on countable groups, Su Gao
8. 2-dimensional convexity revisited, Stefan Geschke
9. Potential Wadge classes, Dominique Lecomte
10. On minimal cofinalities, Haike Mildenberger
11. Descriptive set-theoretic dichotomy theorems, Ben Miller
12. Forcing axioms and the Continuum Hypothesis, Justin Moore
13. Countable linear orders in reverse mathematics, Itay Neeman
14. A unied approach to higher Souslin trees constructions, Assaf Rinot
15. Finitely approximable groups and actions, Christian Rosendal
16. On the strength of (failure of) square, Grigor Sargsyan
17. Generalisations of scattered orders, Katie Thompson
18. On the consistency strength of the proper forcing axiom, Matteo Viale
19. Covering arguments for the core model at small cardinals. Martin ZemanI

The scientific program can be found here.

The list of accepted posters can be see here.

Below are the available slides from invited talks:

1. Descriptive set theory and dimension, Taras Banakh
2. Covering reals by translations of a compact set, Tomek Bartoszynski
3. Combinatorial principles, James Cummings
4. The isomorphism problem, Mirna Dzamonja
5. The descriptive set theory of orbit equivalence, Inessa Epstein
6. The outer model program and quasi lower bounds, Sy Friedman
7. Convergence and character spectra of compact spaces, Istvan Juhasz
8. Singular cardinals in the 20th century, Menachem Kojman
9. Rudimentary recursion and provident sets, Adrian Mathias
10. Aronszajn trees and failure of SCH, Itay Neeman
11. Universally Baire operations, Janusz Pawlikowski
12. Cofinal types of ultafilters, Dilip Raghavan
13. The core model induction, Grigor Sargsyan
14. More mice, John Steel
15. Classifying structures belonging to H(\omega_2): recent contributions,  Stevo Todorcevic
16. Equivalence relations generated by profinite actions, Todor Tsankov
17. The Jensen indiscernibles lemma: a brief history, Philip Welch
18. The search for the ultimate enlargement of L, Hugh Woodin
19. Products of finite sets with submeasures, Jindra Zapletal