·
Co-organizer (with Valentina Harizanov,
Maryanthe Mallaris, Barry Mazur, Russel
Miller, Jonathan
Pila, Tom Scanlon, Carlos
Videla) of MSRI Semester on Definability,
Decidability and Computability in Number Theory, Fall 2020

·
Speaker at the Logic Seminar, Department of Mathematics, George
Washington University, March 2020, Washington DC. The slides of my talk can be found here: Is
there a difference between sets of primes?.

·
Colloquium speaker, Department of Mathematics, George Washington
University, March 2020, Washington DC. The
slides of my talk can be found here: A
problem with a sense of humor.

·
Invited speaker at Southeastern
Logic Colloquium 2020/ Colloquium speaker, Department of Mathematics,
University of Florida, Gainesville, Florida, February 29, 2020. The slides of my talk can be found here: A
problem with a sense of humor.

·
Speaker at the AMS-ASL Special Session Logic
looking outward, January 15, 2020, JMM, Denver Colorado. The slides of my talk can be found here: Is there
a difference between sets of primes?

·
Speaker at Arithmetic Geometry Seminar, Department of Mathematics,
Ohio State University, Columbus, Ohio, October 29, 2019. The slides of my talk can be found here: The
world of definability

·
Co-organizer (with Jennifer Park, Kirsten Eisentraeger,
Valentina Harizanov)
of and a speaker at the American Institute of
Mathematics workshop Definability and
Decidability Problems in Number Theory, San Jose, May 6-10, 2019. Slides of my talk can be found here: Diophantine
Primer for Number Fields

·
Co-organizer (with Jennifer Park, Kirsten Eisentraeger,
Deirdre Haskell) of AMS-ASL
Sprcial Session on Definability and Decidability
Problems in Number Theory, JMM 2019, Baltimore.

·
Invited Speaker, Mathematics is a long
conversation: a celebration of Barry Mazur, June 4-8, 2018, Harvard University, Cambridge,
MA. The slides of my talk can be found here.

·
Speaker, Oberwolfach
Workshop on Computability, Oberwolfach, Germany,
January 2018. More information about the
workshop is available here.

·
Speaker, Logic Seminar, Rutgers
University, New Brunswick, NJ, February 2017

·
Invited speaker, MAMLS 2017,
Wesleyan University, Middletown CT, October 2017. More information about the conference is
available here.

·
Member of the ASL Committee on Logic
in North America (2016-2019)

·
Speaker at the Special Session on Coding Theory, Cryptography, and Number Theory, March 2017, Charleston, SC. Slides of my talk can be found here.

·
Co-organizer with Russel Miller and Valentina Harizanov
of Special
Session on Computability in Algebra and Number Theory, March 2017, Charleston, SC.

·
Invited Speaker, Winter Meeting of
the ASL (Joint Meetings), Atlanta, January 2017. Slides
of my talk can be found here.

·
Co-organizer with Jochen Koenigsmann, Hector Pasten
and Xavier Vidaux
of a Workshop on
Definability and Decidability in Number Theory in Oberwolfach,
Germany, October 2016

·
Speaker at the Number Theory Seminar, Department of Math,
Harvard University, September 2016. Slides
of my talk can be found here.

·
Invited Speaker at TAMC 2015,
Singapore, May 2015

·
Speaker at the Special
Session on Computable Structures Theory, Georgetown University, DC, March
7-8, 2015. Slides
of my talk can be found here.

·
Speaker, Department of Math. and
Physics Colloquium, Mount Royal University, Calgary, Canada, September 2014.

·
Speaker, Number Theory Seminar,
University of Calgary, Calgary, Canada, September 2014, Slides
of my talk can be found here.

·
Speaker, Logic Seminar, George
Washington University, Washington, DC, April 2014. Slides of
my talk can be found here.

·
Co-organizer with Thomas Scanlon, Xavier Vidaux,
and Carlos Videla of an AIM meeting on Definability and
decidability problems in Number Theory.

·
Speaker at the special session on
Computable Structures/ Model Theory, ASL Annual North American Meeting,
May 2013, University of Waterloo. Slides of
my talk can be found here.

·
Speaker, Math Department
Colloquium, George Washington University, Washington, DC, March 1, 2013

·
Invited Speaker, WORKSHOP: ARITHMETIC OF ABELIAN
VARIETIES IN FAMILIES, November 2012, Lausanne, Switzerland

·
Invited Speaker, Turing in Context II,
Brussels, Belgium, October 2012

·
Invited Speaker, Logic
Colloquium 2012, Manchester, UK, June 2012.

·
The slides of my April ECU Math
Colloquium talk can be found here.

·
Participant in Cohomological Methods in Abelian Varieties
Workshop, American Institute of Math, Palo Alto, CA, March 2012. Click here for the workshop page.

·
Speaker at Special
Session on Computable Mathematics in Honor of Alan Turing, 2012 Spring Eastern Sectional Meeting of AMS,

George Washington University, Washington, DC.
Slides of my
talk can be found here.

·
Speaker at Special
Session on Rational Points of Varieties, AMS Meeting, Boston, January 2012.
Slides of
my talk can be found here.

·
Speaker, Number Theory Seminar, Department of Math, Penn
State, December 2011

·
Invited speaker, Computability in Europe 2011,
Sofia, Bulagria, June 2011

·
Speaker at the Women in Computability
Workshop, Computability
in Europe 2011, Sofia, Bulagria, June 2011

·
Co-organizer (with Dieter Spreen)
of a special session on Computability in Analysis,
Algebra, and Geometry, Computability in Europe 2011,
Sofia, Bulagria, June 2011

·
Speaker at the AMS
Special Session on Algebra and Model
Theory at the First AMS-SoMaChi
Meeting, held in Pucón, Chile,
15-18 December, 2010.

·
Invited Speaker at the meeting on Definability
in Number Theory, Ghent, Belgium, August 2010. Slides of
my talk can be found here.

·
Speaker at the UCLA Undergraduate
Summer School in Logic, July 16, 2010.
Slides
of my talk can be found here.

·
Member of the panel on Hilbert’s Tenth Problem (with Martin Davis, Bjorn Poonen,
and Karl Rubin) at JMM, San Francisco,
January 2010. Slides of my talk
can be found here.

·
Invited Speaker at the Diverse Faces of
Arithmetic Conference, University of East Anglia, Norwich, UK, December 14-16, 2009.
Slides
of my talk can be found here.

·
Speaker at the Special Session
on Function Fields and their Applications, 2009 Fall Eastern Section
Meeting, University Park, PA, October 24-25, 2009. Slides of my talk
can be found here.

·
Member of the Mathematics and Statistics Evaluation Group, National Science and Engineering Research
Council of Canada, 2009-2012.

·
Invited Speaker at the ASL Annual North American Meeting,
Notre Dame, Indiana, May 2009. Slides of my
talk can be found here.

·
Member of Hausdorff Research Institute for Mathematics during Diophantine
Equations Trimester, Bonn, Germany, January – April, 2009

·
Speaker at the Workshop on New Methods in Hilbert's 10th
Problem, Hausdorff Research Institute for
Mathematics, February 2009, Bonn, Germany. Click
here for more information on this workshop and here for slides of my
talk.

·
Colloquium Speaker,
Department of Mathematics and Computing, University of Concepcion, Concepcion,
Chile, June 20, 2008.

·
Colloquium Speaker,
Department of Mathematics, University of Concepcion, Concepcion, Chile, June
23, 2008.

·
MASS Colloquium Speaker, Penn State, State College, PA,
November 2007. Slides
of my talk can be found here.

·
Algebra and Number Theory Seminar Speaker, Penn State, State
College, PA, November 2007. Slides of
my talk can be found here.

·
Colloquium Speaker, Department of Mathematics, University of
Calgary, Calgary, Canada, October 2007. Slides of my talk
can be found here.

·
Colloquium Speaker, Department of Mathematics, Physics and
Engineering, Mount Royal College, Calgary, Canada, October 2007. Slides of
my talk can be found here.

·
Invited Speaker, Number Theory and Computability Workshop,
ICMS, Edinburgh, UK, June 2007. Click here for more
information on this workshop. Slides of
my first talk can be found here. Slides of
my second talk can be found here. You can find some pictures I took at the
meeting here.

·
Invited Speaker, Clay Institute Conference on Hilbert's
Tenth Problem, March 2007, Cambridge, MA. Click here for more information on
this conference. Slides
of my talk can be found here.

·
Invited Speaker, Workshop on Model Theory and Computable
Model Theory, Gainesville, Florida, February 2007. Click here for more
information about the workshop and here for PDF slides of
my talk.

·
VIGRE and Number Theory Seminar Speaker, University of
Georgia, October 2006. Click
here for PDF slides of my VIGRE talk.

·
Colloquium Speaker. University of Utrecht, Netherlands,
October 2006.

·
Speaker at the Field Arithmetic meeting, Oberwolfach,
Germany, February 2006. Click
here for PDF slides of my talk.

·
Member of MSRI for the Rational Points Semester, Spring
2006, Berkeley, CA. Click
here for more information on this program.

·
Co-organizer (with Bjorn
Poonen, Karim
Zahidi, and Xavier Vidaux)
of Workshop on Hilbert's Tenth Problem at American Institute of Mathematics,
Palo Alto, Ca, March 2005. Click here for some pictures
I took at the meeting.

·
Program Committee Member, ASL Winter Meeting (joint with
AMS), Atlanta, January 2005.

·
Logic Seminar Speaker, Mathematics Institute of Oxford
University, Oxford, UK, March 2004.

·
Number Theory Seminar Speaker, Imperial College, London, UK,
March 2004.

·
Colloquium Speaker, Department of Mathematics, University of
East Anglia, Norwich, UK, March 2004.

·
Seminar Speaker, Department of Mathematics, Tel Aviv
University, Tel Aviv, Israel, February 2003.

·
Co-organizer (with Gunther Cornelissen, Yurii Matiyasevich, and Maxim Vsemirnov)
of a Workshop on Hilbert's Tenth Problem,
Mazur's Conjectures and Divisibility Sequences, Oberwolfach, Germany, January 2003. Click here for some pictures I
took at the meeting.

·
Participant and speaker at the workshop on rational and
integral points on higher-dimensional varieties, American Institute of
Mathematics, Palo Alto, California, December 2002. Click here for the
workshop web page.

·
Logic Seminar speaker, Department of Mathematics, University
of Athens, Athens, Greece, November, 2002.

·
Colloquium speaker, Department of Mathematics, University of
Crete, Heraklion, Greece, November 2002.

·
Speaker at 21st Days of Weak Arithmetic, St. Petersburg,
Russia, June 2002. Click
here for the conference home page.

·
Participant in the Field Arithmetic Meeting, Oberwolfach, Germany, February 2002.

·
Participant in the Recursion Theory Meeting, Oberwolfach, Germany, January 2001.

·
Participant and speaker in the Workshop on Arithmetic
Geometry, MSRI, Berkeley, CA, December 2000.

·
Speaker, Special Session on Recursion Theory, ASL Winter
Meeting, Washington DC, January 2000.

·
Invited Speaker, Workshop on Hilbert's Tenth Problem and
Algebraic Geometry, Gent, Belgium, November, 1999.

·
Invited speaker, AMS Summer Research Conference on
Computability Theory and Applications, Boulder, Colorado, June 1999.

·
Speaker at the AMS Special Session on Computability Theory,
AMS Meeting, Gainsville, Florida, March 1999.

·
Colloquium speaker, Mathematics Department, University of
Arizona, Tucson, February 1998.

·
Speaker at the Logic Seminar, Graduate School, City
University of New York, December 1997.

·
Invited speaker at the National Security Agency Grants Day,
Fort Meade, Maryland, July 1997.

·
Participant and speaker at the Recursion Theory Workshop,
Kazan, Russia, July 1997.

·
Colloquium speaker, Mathematics Department, Notre Dame
University, May 1997.

·
Colloquium speaker, Mathematics Department, George
Washington University, April 1997.

·
Participant and speaker at the Recursion Theory Meeting, Oberwolfach, Germany, 1996.

·
Invited Speaker at the winter meeting of the Association for
Symbolic Logic, San Francisco, 1995.

This page was last modified on 4/12/20.