Bohuslav Balcar (1943-2017)

With deep sorrow we inform that Dr. Bohuslav Balcar passed away on Friday, February 17th, 2017.

Bohuslav Balcar was born in 1943. In 1965 he finished his studies at the Charles University in Prague under the supervision of P. Vopěnka. Although he obtained a degree in numerical mathematics, his main interests were mathematical logic, automata theory, and set theory. He was one of the original members of the Prague set theory seminar founded by P. Vopěnka in 1962. Between 1965 and 1975 he was a member of several departments at the Faculty of Mathematics and Physics of the Charles University, and in 1975 he started working at ČKD Semiconductors. While employed at the `factory’ as he liked to call the company, he was awarded the Candidate of Sciences (PhD) degree for his work on the theory of semisets, participated in a section of the `national fundamental research plan’ directed by Z. Frolík, and published his most important results. Together with P. Simon he lead the Seminar on Reckoning at Charles University, participated and later organized the Winter Schools in Abstract Analysis and Prague Topological Symposia. In 1989 he was awarded the Doctor of Science degree and started working in the Institute of Mathematics of the Czech Academy of Sciences. Since 1992 he was a member of the the Institute for Advanced Studies, joint research institute of the Charles University and the Czech Academy of Sciences.

Bohuslav Balcar’s mathematical interests included set theory, Boolean algebras, topological dynamics, and logic foundations. He officially supervised five graduate students, and many more had earned their degree under or benefited from his unofficial supervision. His influence shaped several generations of Czech set theoreticians.

Bohuslav Balcar was a kind, inspirational, and unresentful man. He will be greatly missed.


Matti Rubin (1946-2017)

We are sorry to inform you that our colleague Matti Rubin from Ben-Gurion University of the Negev, Israel died on 6th of February, 2017.

adieu Mati, by Robert Bonnet

Dear Friends,I have lost my best friend Mati, who was one of the deepest mathematicians that I knew. These news have saddened all mathematicians, and in particular his friends.
Mati Rubin was born in September 1946, he studied in Ben Gurion University and University of Colorado with Don Monk, and he obtained his PhD under the supervision of Saharon Shelah.
He was a fantastic and deep mathematician, explaining all ideas, results and proofs in details to all colleagues interested.
He published fifty papers in different subjects, some of them in collaboration, with 26 co-authors, including Saharon Shelah and J. Don Monk.
His domains of research cover Mathematical logic, Set theory, Ordered algebraic structures, General topology and Group theory and generalizations. He was a specialist in Set theory, Boolean algebras and Reconstruction results from their automorphism groups. Some of his work is left unfinished.

With all my best wishes, Robert

Young set theory 2017 registration

We are pleased to announce that the registration for Young Set Theory 2017 is now open. It will take place in Edinburgh, 10-14 July 2017 and you can register by completing the required form, under the Participation section in the following link:

The registration will be open until the 31st of March. As places are limited, you are asked to provide a brief statement about your research on the application form. Applicants will be informed of the organisers’ decisions by Friday 14 April at the very latest. Please do not book your travel until your place has been confirmed.

If your registration is successful, you will need to pay a registration fee of £270, which covers accommodation, lunch and participation in the conference dinner. Details on how to do this will become available nearer the deadline.

We will soon update the website to include details about the talks. Meanwhile, for any question you can contact the organisers at

With best regards,

The organisers

Young set theory workshop 2017, Edinburgh

The 10th Young Set Theory Workshop will take place July 10-14, 2017 in Edinburgh.

The deadline for applications is March 30. Please see the conference website for more information about the registration.

The aims of the workshop are to:

  • bring together young researchers working in pure and applied set theory
  • give the participants the opportunity to learn from four experts in the field, who will give tutorials on current research and present new directions
  • enhance the exchange of new ideas through discussion sessions
  • build and maintain a network of young set theorists and senior researchers, so as to establish working contacts and help disseminate knowledge
  • support local research by inviting established UK-based researchers
  • highlight the UK as a major location for work in set theory to the next generation of researchers

Tutorial speakers:

Joan Bagaria, Universitat de Barcelona
Matthew Foreman, University of California, Irvine
Grigor Sargsyan, Rutgers University 
Asger Törnquist, University of Copenhagen

Invited speakers:

Carolin Antos, Kurt Gödel Research Center 
David Asperó, University of East Anglia
Mirna Džamonja, University of East Anglia
Silvia Steila, University of Bern
Thilo Weinert, Ben-Gurion-University of the Negev
Trevor Wilson, Miami University

The conference is organised by Andrew Brooke-Taylor, Stamatis Dimopoulos, Matteo Viale and Philip Welch.

Jack H. Silver (1942-2016)

It is with great sadness that we announce that Professor Jack Howard Silver died on Thursday, December 22, 2016. Professor Silver was born in 1942 in Missoula, Montana. After earning his A.B. at Montana State University (now the University of Montana) in 1961, he entered graduate school in mathematics at UC Berkeley. His thesis, completed in 1966, was supervised by Robert Vaught. In 1967 he joined the mathematics department at UC Berkeley where he also became a member of the Group in Logic and the Methodology of Science. He quickly rose through the ranks obtaining promotion to associate professor in 1970 and to full professor in 1975. From 1970 to 1972 he was an Alfred P. Sloan Research Fellow. Silver retired in 2010. At UC Berkeley he advised eighteen students, three of whom were in the Group in Logic (Burgess, Ignjatovich, Zach). His mathematical interests included set theory, model theory, and proof theory. His production was not extensive but his results were deep. A short summary of his results in set theory can be found here. Professor Silver was skeptical of the consistency of ZFC and even of third-order number theory. As Prof. Robert Solovay recently put it: “For at least the last 20 years, Jack was convinced that measurable cardinals (and indeed ZFC) was inconsistent. He strove mightily to prove this. If he had succeeded it would have been the theorem of the century (at least) in set theory.” He will be greatly missed.

Frontiers of Selection Principles, Warsaw

Dear Friends and Colleagues,

We are glad to invite you to the conference Frontiers of selection principles, celebrating the 60th birthday of Marion Scheepers. This festive conference will take place at the Dewajtis Campus, Bielanski forest, Warsaw, 21.8-1.9, 2017: 21.8-25.8 tutorial, 26.8 excursion, 27.8-1.9 conference. (This is immediately after the Logic Colloquium and immediately before the Bedlewo meeting on set theoretic topology and analysis.)

Selection principles connect topology, set theory, and functional analysis and make it possible to transport and apply methods from each of these fields to the other ones. It is now one of the most active streams of research within set theory and general topology.

For more information about the conference, please see this announcement.

On behalf of the organizing committee,
Piotr Szewczak (Cardinal Stefan Wyszynski University and Bar-Ilan University)
Boaz Tsaban (Bar-Ilan University)
Lyubomyr Zdomskyy (Kurt Gödel Research Center)