
Talks
Title: Definability, automorphisms and enumeration degrees.
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Talk given at the Conference in memory of Ivan Soskov, Giyletchica, September 2014.
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Title: Definability, automorphisms and enumeration degrees.
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Plenary talk given at the Logic Colloquium 2014, Vienna Summer of Logic, Technische Univeritaet Vienna, July 2014.
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Title: Finite automorphism bases for degree structures.
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Plenary talk given at the Ninth International Conference on Computability Complexity and Randomness, IMS, National Univeristy of Singapore, June 2014.
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Title: The definability of the total enumeration degrees and its consequences.
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Special session talk given at the ASL 2014 North American Annual Meeting, University of Colorado, Boulder, May 2014.
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Title: Defining totality in the enumeration degrees.
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Talk given at the Logic Seminar, University of Notre Dame, March 2014.
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Title:
Effective properties of Marker's Extensions by Ivan Soskov.
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Talk given at the Southern Wisconsin Logic Colloquium, University WisconsinMadison, February 2014.
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Title: Defining totality in the enumeration degrees.
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Talk given at the Computability Seminar, UC Berkeley, February 2014.
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Title: Defining totality in the enumeration degrees.
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Talk given at the Connecticut Logic Seminar, University of Connecticut, January 2014.
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Title:
Effective properties of Marker's Extensions by Ivan Soskov.
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Talk given at the Computability Seminar, UC Berkeley, November 2013.
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Title:
The automorphism group of the enumeration degrees.
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Talk given at the Southern Wisconsin Logic Colloquium, University WisconsinMadison, August 2013.
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Title:
The automorphism group of the enumeration degrees.
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Special session talk given at Logic Colloquium 2013, University of Évora, July 2013.
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Title:
The Turing universe in the context of enumeration reducibility.
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Plenary talk given at Computability in Europe 2013, The Nature of Computation, University of MilanoBicocca, July 2013.
Formats: , Video
Title:
Semirecursive sets and definability in the
enumeration degrees.
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Talk given at the Computability Seminar at the University of California, Berkely, September 2012.
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Title:
The Turing universe in the context of enumeration reducibility.
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Plenary talk given at Logic Colloquium 2012, University of Manchester, July 2012.
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Title:
Definability via Kpairs.
Title:
Определимост на аритметиката в теорията на изчислимостта.
Status:
Public lecture given at Faculty of Mathematics and Informatics, Sofia University, July 2012.
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Title:
Definability via Kpairs.
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Talk given at the SAS Seminar, Isaac Newton Institute for Mathematical Studies, Cambridge University, May 2012.
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Video
Title:
Extensions of the Turing model for relative definability.
Status:
Talk given at the 2012 Spring Eastern Sectional Meeting of the AMS,
Special Session on Computable Mathematics (in honor of Alan Turing), George Washington University, Washington, DC, March 2012.
.
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Title:
Extensions of the Turing model for relative definability.
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Talk given at the Spring 2012 MidAtlantic
Mathematical Logic Seminar, City University New York, March 2012.
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Title:
The structure of the omega enumeration degrees.
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Talk given at the Computational Prospects of Infinity II, Workshop on Recursion Theory at the Institute for Mathematical Sciences, NUS, August 2011.
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Title:
Definability in the enumeration degrees.
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Talk given at the Research Seminar at the Kurt Gödel Research Center for Mathematical Logic, May 2011.
Title:
Definability in the local structures of the enumeration degrees.
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Talk given at the Logic Seminar at the University of Chicago, March 2011.
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Title:
Definability in the local structures of the enumeration degrees and the omegaenumeration degrees.
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Talk given at the Logic Seminar at the University of Notre Dame, March 2011.
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Title:
Definability in the local structures of the enumeration degrees and the omegaenumeration degrees.
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Talk given at: Logic Seminar at Cornell University, March 2011.
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Title:
Definability in the local structures of the enumeration degrees and the omegaenumeration degrees.
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Talk given at the Computability Seminar at the University of Leeds, December 2010.
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Title:
Local definability of Kpairs in the enumeration degrees.
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Plenary session talk given at Second Session of the Workshop in Computability Theory 2011, , University of Chicago Center in Paris, July 2324.
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Title:
Definability and Interpretability in the Σ^{0}_{2} enumeration degrees.
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Plenary session talk given at Mal'tsev Meeting, , Novosibirsk, May 26, 2010.
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Title:
Charectarizing the Strength of the Local Theory of the Enumeration Degrees.
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Special session talk given at The 14th SouthEastern Logic Symposium, Gainesville, February 2010.
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Title:
A Locally Definable Set of Low Enumeration
Degrees. Work in Progress.
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Talk given at Dipartimento di Scienze Matematiche ed Informatiche "Roberto Magari", Siena, September 2009.
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Title:
Embedding Partial Orderings in Degree Structures (Short version)
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Contributed talk given at the conference Computability in Europe 2009, Heidelberg, July 2009.
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Title:
Embedding Partial Orderings in Degree Structures
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Talk given at the Computability Seminar at the University of Leeds, May 2009.
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Title:
The Local Structure of the Enumeration degrees
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Talk given at the Proof Theory Seminar, Department of Mathematics, Ludwig Maximilians Universitaet, Munich, July 2008.
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Title:
The Limitations of Cupping in the Local Structure of the Enumeration Degrees
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Contributed talk given at the conference Computability in Europe 2008, Athens, June 2008.
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Title:
Cupping Classes of Σ^{0}_{2} Enumeration Degrees
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Talk given at Dipartimento di Scienze Matematiche ed Informatiche "Roberto Magari", Siena, Feb 2008.
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Title:
Enumeration Degrees
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Talk given at MATHLOGAPS Third Training Workshop, Aussois, June 2007.
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Title:
A Nonsplitting Theorem in the Enumeration Degrees
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Contributed talk given at the conference Computability in Europe 2007, Siena, June 2007.
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Title:
Cupping Δ_{2} Enumeration Degrees to 0'
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Contributed talk given at the conference Computability in Europe 2007, Siena, June 2007.
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Title:
The Strongest Nonsplitting Theorem
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Talk given at the 4th International Conference, TAMC 2007, Shanghai, China, May 2007.
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Title:
A Gentle Approach to Harrington Nonsplitting and Beyond
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Talk given at the Logic Seminar at the University of Leeds, February 2007.
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Title:
An Introduction to a New Characterization of the Lown Degrees
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Talk given at the Computability Seminar at the University of Leeds, Novemeber 2006.
Formats: Part 1 , Part 2
Title:
A Generalization of Harrington's Nonsplitting Theorem
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Talk given at MATHLOGAPS Second Training Workshop, Leeds August 2006.
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Title:
Genericity and Nonbounding
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Contributed talk given at the conference Computability in Europe 2006, Swansea, June 2006.
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Title:
Introduction to Harrington's Nonsplitting Theorem
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Talk given at the Computablity Seminar, University of Leeds, May 2006.
Formats: Part 1 , Part 2
Title:
A Generic Set that Does Not Bound a Minimal Pair in the Enumeration Degrees
Status:
Contributed talk given at the Third Annual Conference on Computation and Logic, TAMC06, Beijing, May 2006.
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