Graduate Logic Seminar: Difference between revisions

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The Graduate Logic Seminar is an informal space where graduate students and professors present topics related to logic which are not necessarily original or completed work. This is a space focused principally on practicing presentation skills or learning materials that are not usually presented in a class.
The Graduate Logic Seminar is an informal space where graduate students and professors present topics related to logic which are not necessarily original or completed work. This is a space focused principally on practicing presentation skills or learning materials that are not usually presented in a class.


* '''When:''' Tuesdays 4-5 PM
* '''When:''' Mondays 3:30-4:30 PM
* '''Where:''' Van Vleck 901
* '''Where:''' Van Vleck B223
* '''Organizers:''' [https://www.math.wisc.edu/~jgoh/ Jun Le Goh]
* '''Organizers:''' [https://uriandrews.netlify.app/ Uri Andrews] and [https://sites.google.com/view/hongyu-zhu/ Hongyu Zhu]


The talk schedule is arranged at the beginning of each semester. If you would like to participate, please contact one of the organizers.
The talk schedule is arranged at the beginning of each semester. If you would like to participate, please contact one of the organizers.


Sign up for the graduate logic seminar mailing list:  join-grad-logic-sem@lists.wisc.edu
Sign up for the graduate logic seminar mailing list:  [mailto:join-grad-logic-sem@lists.wisc.edu join-grad-logic-sem@lists.wisc.edu]


== Fall 2021 tentative schedule ==
== Fall 2023 ==


To see what's happening in the Logic qual preparation sessions click [[Logic Qual Prep|here]].
The seminar will be run as a 1-credit seminar Math 975 in Fall 2023. If you are not enrolled but would like to audit it, please contact [mailto:andrews@math.wisc.edu Uri Andrews] and [mailto:hongyu@math.wisc.edu Hongyu Zhu].


=== September 14 - organizational meeting ===
While you are welcome (and encouraged) to present on a topic of your own choice, there is also a "suggested reading" so that you can also read and present on a (small) section of it.


We met to discuss the schedule.
Suggested reading: <!-- Chapters 4-7 of <i>[https://projecteuclid.org/ebooks/lecture-notes-in-logic/Aspects-of-Incompleteness/toc/lnl/1235416274 Aspects of Incompleteness]</i> by Per Lindström. -->


=== September 28 - Ouyang Xiating ===
=== September 11 - Organizational Meeting ===


Title: First-order logic, database and consistent query answering
We will meet to assign speakers to dates.


Abstract: Databases are a crucial component of many (if not all) modern
<!-- Template
applications. In reality, the data stored are often dirty and contain
duplicated/missing entries, and it is a natural practice to clean the data
first before executing the query. However, the same query might return
different answers on different cleaned versions of the dataset. It is then
helpful to compute the consistent answers: the query answers that will always
be returned, regardless of how the dirty data is cleaned. In this talk, we
first introduce the connection between first-order logic and query languages
on databases, and then discuss the problem of Consistent Query Answering
(CQA): How to compute consistent answers on dirty data? Finally, we show
when the CQA problem can be solved using first-order logic for path queries.


=== October 12 - Karthik Ravishankar ===
=== '''September 18 - Karthik Ravishankar''' ===
'''Title:''' Lowness for Isomorphism ([https://wiki.math.wisc.edu/images/Karthik_talk.pdf Slides])


Title: Notions of randomness for subsets of the Natural Numbers
'''Abstract:''' A Turing degree is said to be low for isomorphism if it can only compute an isomorphism between computable structures only when a computable isomorphism already exists. In this talk, we show that the measure of the class of low for isomorphism sets in Cantor space is 0 and that no Martin Lof random is low for isomorphism.


Abstract: There are a number of notions of randomness of sets of natural numbers. These notions have been defined based on what a 'random object' should behave like such as being 'incompressible' or being 'hard to predict' etc. There is often a interplay between computability and randomness aspects of subsets of natural numbers. In this talk we motivate and present a few different notions of randomness and compare their relative strength.
-->


=== October 26 - no seminar ===
=== November 9 - Antonio Nákid Cordero ===
Title: Martin's Conjecture: On the uniqueness of the Turing jump
Abstract: The partial order of the Turing degrees is well-known to be extremely complicated. However, all the Turing degrees that appear "naturally" in mathematics turn out to be well-ordered. In the '70s, Martin made a sharp conjecture explaining this phenomenon, the prime suspect: the Turing jump. This talk will explore the precise statement of Martin's conjecture and the interesting mathematics that surround it.
=== November 23 - Antonio Nákid Cordero ===
Title: Two Perspectives on Martin's Conjecture.
Abstract: This time we will dive deeper into the recent developments around Martin's Conjecture. We will focus on two main themes: the uniformity assumption, and the interaction of Martin's conjecture with the theory of countable Borel equivalence relations.
=== December 7 - John Spoerl ===
Title: Cardinals Beyond Choice and Inner Model Theory
Abstract: This talk will be a general introduction and overview of large cardinal axioms which violate the axiom of choice and their impact on the project of inner model theory.


== Previous Years ==
== Previous Years ==


The schedule of talks from past semesters can be found [[Graduate Logic Seminar, previous semesters|here]].
The schedule of talks from past semesters can be found [[Graduate Logic Seminar, previous semesters|here]].

Revision as of 22:07, 29 May 2023

The Graduate Logic Seminar is an informal space where graduate students and professors present topics related to logic which are not necessarily original or completed work. This is a space focused principally on practicing presentation skills or learning materials that are not usually presented in a class.

The talk schedule is arranged at the beginning of each semester. If you would like to participate, please contact one of the organizers.

Sign up for the graduate logic seminar mailing list: join-grad-logic-sem@lists.wisc.edu

Fall 2023

The seminar will be run as a 1-credit seminar Math 975 in Fall 2023. If you are not enrolled but would like to audit it, please contact Uri Andrews and Hongyu Zhu.

While you are welcome (and encouraged) to present on a topic of your own choice, there is also a "suggested reading" so that you can also read and present on a (small) section of it.

Suggested reading:

September 11 - Organizational Meeting

We will meet to assign speakers to dates.


Previous Years

The schedule of talks from past semesters can be found here.