Difference between revisions of "Graduate Logic Seminar"

Revision as of 01:20, 26 September 2022

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: Mondays 3:30-4:30 PM
Where: Van Vleck B139
Organizers: Karthik Ravishankar and Antonio Nakid Cordero

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 2022

September 12 - Organizational Meeting

We will meet to assign speakers to dates.

September 19 - Karthik Ravishankar

Title: Lowness for Isomorphism

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.

September 26 - Antonio Nakid Cordero

Title: When Models became Polish: an introduction to the Topological Vaught Conjecture

Abstract: Vaught's Conjecture, originally asked by Vaught in 1961, is one of the most (in)famous open problems in mathematical logic. The conjecture is that a complete theory on a countable language must either have countably-many or continuum-many non-isomorphic models. In this talk, we will discuss some of the main ideas that surround this conjecture, with special emphasis on a topological generalization in terms of the continuous actions of Polish groups.

October 3 - Yunting Zhang

October 10 - Yuxiao Fu

October 17 - Alice Vidrine

October 24 - Hongyu Zhu

October 31 - Break for Halloween

November 7 - John Spoerl

November 14 - Josiah Jacobsen-Grocott

November 21 - Karthik Ravishankar

November 28 - Logan Heath

December 5 - Logan Heath

December 12 - TBA

Previous Years

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

@@ Line 1: / Line 1: @@
-The Graduate Logic Seminar is an informal space where graduate student and professors present topics related to logic which are not necessarly original or completed work. This is an space focus principally in  practicing presentation skills or learning materials that are not usually presented on 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:''' Mondays, 4:00 PM – 5:00 PM (unless otherwise announced).
+* '''When:''' Mondays 3:30-4:30 PM
-* '''Where:''' Van Vleck B235 (unless otherwise announced).
+* '''Where:''' Van Vleck B139
-* '''Organizers:''' [https://www.math.wisc.edu/~msoskova/ Mariya Soskava]
+* '''Organizers:''' Karthik Ravishankar and [https://sites.google.com/wisc.edu/antonio Antonio Nakid Cordero]
-Talks schedule are arrange and decide 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.
-== Spring 2018 ==
+Sign up for the graduate logic seminar mailing list:  join-grad-logic-sem@lists.wisc.edu
-=== January 29, Organizational meeting ===
+== Fall 2022 ==
-This day we decided the schedule for the semester.
+=== September 12 - Organizational Meeting ===
-=== February 5, (person) ===
+We will meet to assign speakers to dates.
-Title:
+=== '''September 19 - Karthik Ravishankar''' ===
+'''Title:''' Lowness for Isomorphism
-Abstract:
+'''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.
-=== February 12, (Person) ===
+=== '''September 26 - Antonio Nakid Cordero''' ===
+'''Title:''' When Models became Polish: an introduction to the Topological Vaught Conjecture
-Title:
+'''Abstract:''' Vaught's Conjecture, originally asked by Vaught in 1961, is one of the most (in)famous open problems in mathematical logic. The conjecture is that a complete theory on a countable language must either have countably-many or continuum-many non-isomorphic models. In this talk, we will discuss some of the main ideas that surround this conjecture, with special emphasis on a topological generalization in terms of the continuous actions of Polish groups.
-Abstract:
+=== '''October 3 - Yunting Zhang''' ===
-=== February 19, (Person) ===
+=== '''October 10 - Yuxiao Fu''' ===
-Title:
+=== '''October 17 - Alice Vidrine''' ===
-Abstract:
+=== '''October 24 - Hongyu Zhu''' ===
-=== February 26, (Person) ===
+=== '''October 31 - Break for Halloween''' ===
-Title:
+=== '''November 7 - John Spoerl''' ===
-Abstract:
+=== '''November 14 - Josiah Jacobsen-Grocott''' ===
-=== March 5, (Person) ===
+=== '''November 21 - Karthik Ravishankar''' ===
-Title:
+=== '''November 28 - Logan Heath''' ===
-Abstract:
+=== '''December 5 - Logan Heath''' ===
-=== March 12, (Person) ===
+=== '''December 12 - TBA''' ===
-Title:
+== Previous Years ==
-Abstract:
+The schedule of talks from past semesters can be found [[Graduate Logic Seminar, previous semesters|here]].
-=== March 19, (Person) ===
-Title:
-Abstract:
-=== April 2, (Person) ===
-Title:
-Abstract:
-=== April 9, (Person) ===
-Title:
-Abstract:
-=== April 16, Iván Ongay-Valverde ===
-Title: What can we say about sets made by the union of Turing equivalence classes?
-Abstract: It is well known that given a real number x (in the real line) the set of all reals that have the same Turing degree (we will call this a Turing equivalence class) have order type 'the rationals' and that, unless x is computable, the set is not a subfield of the reals. Nevertheless, what can we say about the order type or the algebraic structure of a set made by the uncountable union of Turing equivalence classes?
-This topic hasn't been deeply studied. In this talk I will focus principally on famous order types and answer whether they can be achieved or not. Furthermore, I will explain some possible connections with the automorphism problem of the Turing degrees.
-This is a work in progress, so this talk will have multiple open questions and opportunities for feedback and public participation (hopefully).
-=== April 23, Ethan (Defense) ===
-Title: TBA
-Abstract: TBA
-=== April 30, Linda ===
-Title: TBA
-Abstract: TBA
-=== May 7, TBA ===
-Title: TBA
-Abstract: TBA
-== Fall 2017 ==
-=== September 11, Organizational meeting ===
-This day we decided the schedule for the semester.
-=== September 18, (person) ===
-Title:
-Abstract:
-=== September 25, (Person) ===
-Title:
-Abstract:
-=== October 2, (Person) ===
-Title:
-Abstract:
-=== October 9, (Person) ===
-Title:
-Abstract:
-=== October 16, (Person) ===
-Title:
-Abstract:
-=== October 23, (Person) ===
-Title:
-Abstract:
-=== October 30, Iván Ongay-Valverde ===
-Title:
-Abstract:
-=== November 6, (Person) ===
-Title:
-Abstract:
-=== November 13, (Person) ===
-Title:
-Abstract:
-=== November 20, (Person) ===
-Title:
-Abstract:
-=== November 27, (Person) ===
-Title: TBA
-Abstract: TBA
-=== December 4, (Person) ===
-Title: TBA
-Abstract: TBA
-=== December 11, (Person) ===
-Title: TBA
-Abstract: TBA
-==Previous Years==
-The schedule of talks from past semesters can be found [[Logic Graduate Seminar, previous semesters|here]].