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ORCIDDenis R. Hirschfeldt
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- affiliation: University of Chicago, IL, USA
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2020 – today
- 2024
[j37]Denis R. Hirschfeldt, Carl G. Jockusch Jr., Paul E. Schupp:
Coarse computability, the density metric, Hausdorff distances between Turing degrees, perfect trees, and reverse mathematics. J. Math. Log. 24(2): 2350005:1-2350005:76 (2024)- 2022
- [j36]Damir D. Dzhafarov
, Denis R. Hirschfeldt, Sarah Reitzes:
Reduction games, provability and compactness. J. Math. Log. 22(3): 2250009:1-2250009:37 (2022) - 2020
- [j35]Damir D. Dzhafarov, Jun Le Goh, Denis R. Hirschfeldt, Ludovic Patey, Arno Pauly:
Ramsey's theorem and products in the Weihrauch degrees. Comput. 9(2): 85-110 (2020) - [j34]Peter A. Cholak, Damir D. Dzhafarov, Denis R. Hirschfeldt, Ludovic Patey:
Some results concerning the SRT22 vs. COH problem. Comput. 9(3-4): 193-217 (2020) - [j33]Caleb Davis, Denis R. Hirschfeldt, Jeffry L. Hirst, Jake Pardo, Arno Pauly, Keita Yokoyama:
Combinatorial principles equivalent to weak induction. Comput. 9(3-4): 219-229 (2020) - [j32]Denis R. Hirschfeldt:
A Minimal Pair in the Generic Degrees. J. Symb. Log. 85(1): 531-537 (2020)
2010 – 2019
- 2019
- [j31]Rod Downey, Denis R. Hirschfeldt:
Algorithmic randomness. Commun. ACM 62(5): 70-80 (2019) - [j30]Eric P. Astor, Denis R. Hirschfeldt:
Dense computability, upper cones, and minimal pairs. Comput. 8(2): 155-177 (2019) - [j29]Barbara F. Csima, Damir D. Dzhafarov, Denis R. Hirschfeldt, Carl G. Jockusch Jr., Reed Solomon, Linda Brown Westrick:
The reverse mathematics of Hindman's Theorem for sums of exactly two elements. Comput. 8(3-4): 253-263 (2019) - 2018
- [j28]Rod Downey, Denis R. Hirschfeldt, Bjørn Kjos-Hanssen:
Preface. Theory Comput. Syst. 62(7): 1553-1554 (2018) - 2017
- [c6]Denis R. Hirschfeldt:
Some Questions in Computable Mathematics. Computability and Complexity 2017: 22-55 - 2016
- [j27]Denis R. Hirschfeldt:
Five papers on reverse mathematics and Ramsey-theoretic principles - C. T. Chong, Theodore A. Slaman, and Yue Yang, The metamathematics of Stable Ramsey's Theorem for Pairs. Journal of the American Mathematical Society, vol. 27 (2014), no. 3, pp. 863-892. - Manuel Lerman, Reed Solomon, and Henry Towsner, Separating principles below Ramsey's Theorem for Pairs. Journal of Mathematical Logic, vol. 13 (2013), no. 2, 1350007, 44 pp. - Jiayi Liu, $RT_2^^2$ does not imply WKL 0. Journal of Symbolic Logic, vol. 77 (2012), no. 2, pp. 609-620. - Lu Liu, Cone avoiding closed sets. Transactions of the American Mathematical Society, vol. 367 (2015), no. 3, pp. 1609-1630. - Wei Wang, Some logically weak Ramseyan theorems. Advances in Mathematics, vol. 261 (2014), pp. 1-25. Bull. Symb. Log. 22(4): 526-530 (2016) - [j26]Denis R. Hirschfeldt, Carl G. Jockusch Jr., Timothy H. McNicholl, Paul E. Schupp:
Asymptotic density and the coarse computability bound. Comput. 5(1): 13-27 (2016) - [j25]Denis R. Hirschfeldt, Carl G. Jockusch Jr.:
On notions of computability-theoretic reduction between Π21 principles. J. Math. Log. 16(1): 1650002:1-1650002:59 (2016) - [j24]Denis R. Hirschfeldt, Carl G. Jockusch Jr., Rutger Kuyper, Paul E. Schupp:
Coarse Reducibility and Algorithmic Randomness. J. Symb. Log. 81(3): 1028-1046 (2016) - 2015
- [j23]Santiago Figueira, Denis R. Hirschfeldt, Joseph S. Miller, Keng Meng Ng, André Nies:
Counting the changes of random Δ20 sets. J. Log. Comput. 25(4): 1073-1089 (2015) - 2014
- [b2]Denis R. Hirschfeldt:
Slicing the Truth - On the Computable and Reverse Mathematics of Combinatorial Principles. Lecture Notes Series / Institute for Mathematical Sciences / National University of Singapore 28, World Scientific 2014, ISBN 978-981-4612-61-6, pp. I-V, 1-214 - 2012
- [j22]Denis R. Hirschfeldt, Rebecca Weber:
Finite Self-Information. Comput. 1(1): 85-98 (2012) - 2010
- [b1]Rodney G. Downey, Denis R. Hirschfeldt:
Algorithmic Randomness and Complexity. Theory and Applications of Computability, Springer 2010, ISBN 978-0-387-95567-4, pp. 1-766 - [c5]Santiago Figueira, Denis R. Hirschfeldt, Joseph S. Miller, Keng Meng Ng, André Nies:
Counting the Changes of Random D02 Sets. CiE 2010: 162-171
2000 – 2009
- 2007
- [j21]Rodney G. Downey, Denis R. Hirschfeldt, Geoffrey LaForte:
Undecidability of the structure of the Solovay degrees of c.e. reals. J. Comput. Syst. Sci. 73(5): 769-787 (2007) - [j20]Denis R. Hirschfeldt, Richard A. Shore:
Combinatorial principles weaker than Ramsey's Theorem for pairs. J. Symb. Log. 72(1): 171-206 (2007) - [j19]Barbara F. Csima, Valentina S. Harizanov, Denis R. Hirschfeldt, Robert I. Soare:
Bounding homogeneous models. J. Symb. Log. 72(1): 305-323 (2007) - [j18]John Chisholm, Jennifer Chubb, Valentina S. Harizanov, Denis R. Hirschfeldt, Carl G. Jockusch Jr., Timothy H. McNicholl, Sarah Pingrey:
Π10 classes and strong degree spectra of relations. J. Symb. Log. 72(3): 1003-1018 (2007) - [j17]Denis R. Hirschfeldt, Russell G. Miller, Sergei Podzorov:
Order-Computable Sets. Notre Dame J. Formal Log. 48(3): 317-347 (2007) - 2006
- [j16]Rodney G. Downey, Denis R. Hirschfeldt, André Nies, Sebastiaan Terwijn:
Calibrating Randomness. Bull. Symb. Log. 12(3): 411-491 (2006) - [j15]Barbara F. Csima, Rod Downey, Noam Greenberg, Denis R. Hirschfeldt, Joseph S. Miller:
Every 1-generic computes a properly 1-generic. J. Symb. Log. 71(4): 1385-1393 (2006) - [j14]Bakhadyr Khoussainov, Denis R. Hirschfeldt, Pavel Semukhin:
An Uncountably Categorical Theory Whose Only Computably Presentable Model Is Saturated. Notre Dame J. Formal Log. 47(1): 63-71 (2006) - 2005
- [j13]Rod Downey, Denis R. Hirschfeldt, Joseph S. Miller, André Nies:
Relativizing Chaitin's Halting Probability. J. Math. Log. 5(2) (2005) - [c4]Denis R. Hirschfeldt:
Computability-Theoretic and Proof-Theoretic Aspects of Vaughtian Model Theory. CiE 2005: 209-210 - 2004
- [j12]Rodney G. Downey, Denis R. Hirschfeldt, Geoffrey LaForte:
Randomness and reducibility. J. Comput. Syst. Sci. 68(1): 96-114 (2004) - [j11]Barbara F. Csima, Denis R. Hirschfeldt, Julia F. Knight, Robert I. Soare:
Bounding prime models. J. Symb. Log. 69(4): 1117-1142 (2004) - 2003
- [j10]Denis R. Hirschfeldt, Bakhadyr Khoussainov, Richard A. Shore:
A computably categorical structure whose expansion by a constant has infinite computable dimension. J. Symb. Log. 68(4): 1199-1241 (2003) - 2002
- [j9]Denis R. Hirschfeldt, Bakhadyr Khoussainov, Richard A. Shore, Arkadii M. Slinko:
Degree spectra and computable dimensions in algebraic structures. Ann. Pure Appl. Log. 115(1-3): 71-113 (2002) - [j8]Denis R. Hirschfeldt:
Degree spectra of relations on structures of finite computable dimension. Ann. Pure Appl. Log. 115(1-3): 233-277 (2002) - [j7]Denis R. Hirschfeldt:
Degree Spectra of Relations on Computable Structures in The Presence of delta02 Isomorphisms. J. Symb. Log. 67(2): 697-720 (2002) - [j6]Denis R. Hirschfeldt, Walker M. White:
Realizing Levels of the Hyperarithmetic Hierarchy as Degree Spectra of Relations on Computable Structures. Notre Dame J. Formal Log. 43(1): 51-64 (2002) - [j5]Rodney G. Downey, Denis R. Hirschfeldt, André Nies:
Randomness, Computability, and Density. SIAM J. Comput. 31(4): 1169-1183 (2002) - [c3]Rodney G. Downey, Denis R. Hirschfeldt, André Nies, Frank Stephan:
Trivial Reals. CCA 2002: 36-52 - 2001
- [j4]Denis R. Hirschfeldt:
Degree Spectra of Intrinsically C.E. Relations. J. Symb. Log. 66(2): 441-469 (2001) - [j3]Rodney G. Downey, Denis R. Hirschfeldt, Steffen Lempp, Reed Solomon:
A delta02 Set with No Infinite Low Subset in Either It or Its Complement. J. Symb. Log. 66(3): 1371-1381 (2001) - [c2]Rodney G. Downey, Denis R. Hirschfeldt, Geoffrey LaForte:
Randomness and Reducibility. MFCS 2001: 316-327 - [c1]Rodney G. Downey, Denis R. Hirschfeldt, André Nies:
Randomness, Computability, and Density. STACS 2001: 195-205 - 2000
- [j2]Klaus Ambos-Spies, Denis R. Hirschfeldt, Richard A. Shore:
Undecidability and 1-types in intervals of the computably enumerable degrees. Ann. Pure Appl. Log. 106(1-3): 1-47 (2000) - [j1]Denis R. Hirschfeldt:
Degree spectra of relations on computable structures. Bull. Symb. Log. 6(2): 197-212 (2000)
Coauthor Index
aka: Rod Downey
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