Computability theory

Results: 1231



#Item
141Ordinal numbers / Proof theory / Computability theory / Mathematical notation / Ordinal notation / Continuous function / Constructible universe / Limit of a function / Symbol / NC / Computable number / Fast-growing hierarchy

A LIGHTFACE ANALYSIS OF THE DIFFERENTIABILITY RANK LINDA BROWN WESTRICK Abstract. We examine the computable part of the differentiability hierarchy defined by Kechris and Woodin. In that hierarchy, the rank of a differen

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Source URL: www.math.uconn.edu

Language: English - Date: 2014-10-24 11:30:43
142Computability theory / Mathematical logic / Logic / Primitive recursive functional / Proof theory / Symbol / Mathematics / Table of stars with Bayer designations

Effective bounds from ineffective proofs in analysis: an application of functional interpretation and majorization∗ Ulrich Kohlenbach Fachbereich Mathematik, J.W.Goethe–Universitt Robert–Mayer–Str. 6–10, 6000 F

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Source URL: www.mathematik.tu-darmstadt.de

Language: English - Date: 2014-04-08 11:54:42
143Mathematics / Mathematical analysis / Differential forms / Constructible universe / Closed and exact differential forms / Computability theory / Combinatory logic / Ordinal number / Differential forms on a Riemann surface / Banach fixed-point theorem

RAMSEY’S THEOREM FOR SINGLETONS AND STRONG COMPUTABLE REDUCIBILITY DAMIR D. DZHAFAROV, LUDOVIC PATEY, REED SOLOMON, AND LINDA BROWN WESTRICK Abstract. We answer a question posed by Hirschfeldt and Jockusch by showing

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Source URL: ludovicpatey.com

Language: English - Date: 2016-05-31 11:43:35
144Computability theory / Proof theory / Mathematical logic / Predicate logic / Logic in computer science / Primitive recursive functional / Reverse mathematics / Primitive recursive function / Primitive recursive arithmetic / First-order logic / Peano axioms / Ordinal analysis

On uniform weak K¨onig’s lemma Ulrich Kohlenbach BRICS∗ Department of Computer Science University of Aarhus Ny Munkegade

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Source URL: www.mathematik.tu-darmstadt.de

Language: English - Date: 2012-11-16 09:11:16
145Computability theory / Mathematical logic / Proof theory / Theory of computation / Logic in computer science / Computable function / Reverse mathematics / PA degree / Peano axioms

OPEN QUESTIONS ABOUT RAMSEY-TYPE STATEMENTS IN REVERSE MATHEMATICS LUDOVIC PATEY Abstract. Ramsey’s theorem states that for any coloring of the n-element subsets of N with finitely many colors, there is an infinite set

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Source URL: ludovicpatey.com

Language: English - Date: 2015-10-26 09:24:01
146Computability theory / Computable function / Computation in the limit / Second-order arithmetic / Compactness theorem / Reverse mathematics / 01 class / PA degree / Low / Algorithmically random sequence / Computable number

THE WEAKNESS OF BEING COHESIVE, THIN OR FREE IN REVERSE MATHEMATICS LUDOVIC PATEY Abstract. Informally, a mathematical statement is robust if its strength is left unchanged under variations of the statement. In this pape

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Source URL: ludovicpatey.com

Language: English - Date: 2016-02-08 07:56:59
147Computability theory / Mathematical logic / Mathematics / Theoretical computer science / Primitive recursive function / Primitive recursive arithmetic / ELEMENTARY / Reverse mathematics / Pairing function / Ackermann function / Sequence / Recursion

Things that can and things that can’t be done in PRA Ulrich Kohlenbach BRICS∗ Department of Computer Science University of Aarhus Ny Munkegade, Bldg. 540

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Source URL: www.mathematik.tu-darmstadt.de

Language: English - Date: 2012-11-16 09:11:59
148Graph theory / Complex systems theory / Graph / Directed acyclic graph / Peer-to-peer / Tree / Social peer-to-peer processes / Consensus

Towards a Theory of Peer-to-Peer Computability Joachim Giesen Roger Wattenhofer Aaron Zollinger {giesen,wattenhofer,zollinger}@inf.ethz.ch Department of Computer Science, ETH Zurich, 8092 Zurich, Switzerland

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Source URL: disco.ethz.ch

Language: English - Date: 2014-09-26 08:36:32
149Computability theory / Theory of computation / Mathematics / Theoretical computer science / Mathematical analysis / Computable function / Sigma-algebra / Generalised Whitehead product

Ramsey-type graph coloring and diagonal non-computability Ludovic Patey Abstract A function is diagonally non-computable (d.n.c.) if it diagonalizes against the universal partial computable function. D.n.c. functions pla

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Source URL: ludovicpatey.com

Language: English - Date: 2015-01-27 11:28:33
150Computability theory / Proof theory / Mathematical logic / Logic / Reverse mathematics / Mathematics / Philosophy of mathematics

Classical provability of uniform versions and intuitionistic provability Makoto Fujiwara∗ Mathematical Institute Tohoku University 6-3, Aramaki Aoba, Aoba-ku Sendai, Miyagi, Japan

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Source URL: www.mathematik.tu-darmstadt.de

Language: English - Date: 2013-08-17 07:52:06
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