The Midwest Computability Seminar is a joint venture between the University of Chicago, the University of Notre Dame, and the University of Wisconsin-Madison. It meets once or twice per semester at the University of Chicago, and is attended by faculty and students from these universities and others in the area. The seminar started in the fall of 2008.

DATE: Thursday, March 16, 2017.

PLACE: Ryerson Hall 352 (the Barn), The University of Chicago.

1100 East 58th Street, Chicago, IL 60637.

Speakers:

- Greg Igusa - University of Notre Dame

- Jack Lutz - Iowa State University

- Sasha Melnikov - Massey University

- Reed Solomon - University of Connecticut

- 12:00 - 1:00: Lunch
- 1:00 - 1:50: Greg Igusa

- 2:00 - 2:50: Jack Lutz

- 3:40 - 4:30: Sasha Melnikov

- 4:40 - 5:30: Reed Solomon

- 6:00 Dinner at the Sit Down, 1312 E. 53rd Street

Title: Monochromatic path decomposition

Abstract: In 1978, Rado published a theorem showing that, given any

The principle has a type-change between

For

This work is joint with Peter Cholak, Ludovic Patey, Mariya Soskova, and Dan Turetsky.

Jack H. Lutz

Title: Algorithmic dimensions and fractal geometry

Abstract: This talk will review the Σ

Sasha Melnikov

Title: Structures computable without delay

Abstract: Various effects related to unbounded search are usually overlooked in computable structure theory, yet there is a lot to say. Using primitive recursion we formally measure and compare unbounded delays in computable algebraic structures. The audience may find some of the results counterintuitive, and the technical depth of some proofs may seem unexpected. (The talk is based on 3 papers jointly written with Kalimullin and Ng.)

Reed Solomon

Title: Baire codes for Borel sets in reverse mathematics

Abstract: Statements involving Borel codes are difficult to handle below the level of ATR

- Sept 23rd 2008 Antonio Montalbán - Logan Axon - Joe Miller
- Nov 11th 2008 Chris Conidis - Keng Meng (Selwyn) Ng - Peter Gerdes
- Feb 3rd 2009 David Diamondstone - Bart Kastermans - Richard A. Shore
- April 21st 2009 Dan Turetsky - Julia Knight - Ted Slaman
- Sept 29th 2009 Carl Jockusch - Rachel Epstein - Rebecca Weber
- Jan 26th 2010 Sara Quinn - John Wallbaum - Steffen Lempp - Reed Solomon
- May 11th 2010 Adam Day - Liang Yu - Rod Downey - Boris Zilber
- Sept 28th 2010 Maurice Chiodo - Peter Gerdes - Damir Dzhafarov - Andy Lewis
- Feb 15th 2011 Uri Andrews - Paola D'Aquino - David Diamondstone - Christopher Porter - Rebecca Steiner
- Nov 1st 2011 Mingzhong Cai - Chris Conidis - Stephen Flood - Jeff Hirst - Asher Kach
- Nov 15th 2012 Achilles Beros - Rod Downey - Jesse Johnson - Sam Sanders - Steven VanDendriessche - Matthew Wright
- April 2nd 2013 Howard Becker - Denis Hirschfeldt - Paul Schupp
- October 1st 2013 Peter Cholak - Mushfeq Khan - Victor Ocasio-González - Jonathan Stephenson
- April 29th, 2014 Rod Downey - Noam Greenberg - Gregory Igusa - Alexander Melnikov - Kyle Riggs
- September 30th, 2014 Eric Astor - Quinn Culver - Jack Lutz - Timothy McNicholl
- February 17th, 2015 Carl Jockusch - Julia Knight - Steffen Lempp
- January 28th, 2016 Reese Johnston - Rutger Kuyper - Mariya Soskova - Mars Yamaleev
- October 22nd and 23rd, 2016 Special Meeting in Honor of Carl Jockusch's 75th Birthday

If you haven't been receiving the announcements and would like to be included in the list, send an email to drh@math.uchicago.edu.