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1

A MINIMAL PAIR IN THE GENERIC DEGREES

HIRSCHFELDT, DENIS R.

Journal:

Journal of Symbolic Logic

Year:

2020

File:

PDF, 125 KB

2020

2

Algorithmic randomness

Downey, Rod, Hirschfeldt, Denis R.

Journal:

Communications of the ACM

Year:

2019

Language:

english

File:

PDF, 8.50 MB

english, 2019

3

Subspaces of computable vector spaces

Rodney G. Downey, Denis R. Hirschfeldt, Asher M. Kach, Steffen Lempp, Joseph R. Mileti, Antonio Montalbán

Journal:

Journal of Algebra

Year:

2007

Language:

english

File:

PDF, 118 KB

english, 2007

4

Trivial Reals

Rod G. Downey, Denis R. Hirschfeldt, André Nies, Frank Stephan

Journal:

Electronic Notes in Theoretical Computer Science

Year:

2002

Language:

english

File:

PDF, 223 KB

english, 2002

5

Soziale Leistungsträger und Einrichtungen

Andrea Tabatt-Hirschfeldt

Journal:

Year:

2009

Language:

german

File:

PDF, 322 KB

german, 2009

6

Characterizing the strongly jump-traceable sets via randomness

Noam Greenberg, Denis R. Hirschfeldt, André Nies

Journal:

Advances in Mathematics

Year:

2012

Language:

english

File:

PDF, 407 KB

english, 2012

7

RELATIVIZING CHAITIN'S HALTING PROBABILITY

DOWNEY, ROD, HIRSCHFELDT, DENIS R., MILLER, JOSEPH S., NIES, ANDRÉ

Journal:

Journal of Mathematical Logic

Year:

2005

Language:

english

File:

PDF, 369 KB

english, 2005

8

Categoricity properties for computable algebraic fields

Hirschfeldt, Denis R., Kramer, Ken, Miller, Russell, Shlapentokh, Alexandra

Journal:

Transactions of the American Mathematical Society

Year:

2014

Language:

english

File:

PDF, 459 KB

english, 2014

9

Calibrating Randomness

Downey, Rod, Hirschfeldt, Denis R., Nies, André, Terwijn, Sebastiaan A.

Journal:

Bulletin of Symbolic Logic

Year:

2006

Language:

english

File:

PDF, 743 KB

english, 2006

10

Using random sets as oracles

Hirschfeldt, D. R., Nies, A., Stephan, F.

Journal:

Journal of the London Mathematical Society

Year:

2007

Language:

english

File:

PDF, 240 KB

english, 2007

11

Calibrating Randomness

Rod Downey, Denis R. Hirschfeldt, André Nies and Sebastiaan A. Terwijn

Journal:

Bulletin of Symbolic Logic

Year:

2006

Language:

english

File:

PDF, 9.23 MB

english, 2006

12

[Society of Petroleum Engineers SPE Annual Technical Conference and Exhibition - New Orleans, Louisiana (2009-10-04)] SPE Annual Technical Conference and Exhibition - Selection Criteria for Artificial Lift System Based on the Mechanical Limits: Case Study of Golfo San Jorge Basin

Hirschfeldt, Clemente Marcelo, Ruiz, Rodrigo Ariel

Language:

english

File:

PDF, 363 KB

english

13

On notions of computability-theoretic reduction between Π21 principles

Hirschfeldt, Denis R., Jockusch, Carl G.

Journal:

Journal of Mathematical Logic

Year:

2016

Language:

english

File:

PDF, 708 KB

english, 2016

14

The atomic model theorem and type omitting

Hirschfeldt, Denis R., Shore, Richard A., Slaman, Theodore A.

Journal:

Transactions of the American Mathematical Society

Year:

2009

Language:

english

File:

PDF, 435 KB

english, 2009

15

COARSE REDUCIBILITY AND ALGORITHMIC RANDOMNESS

HIRSCHFELDT, DENIS R., JOCKUSCH, CARL G., KUYPER, RUTGER, SCHUPP, PAUL E.

Journal:

Journal of Symbolic Logic

Year:

2016

Language:

english

File:

PDF, 274 KB

english, 2016

16

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, 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, vo

Hirschfeldt, Denis R.

Journal:

Bulletin of Symbolic Logic

Year:

2016

Language:

english

File:

PDF, 114 KB

english, 2016

17

Undecidability of the structure of the Solovay degrees of c.e. reals

Rod Downey, Denis R. Hirschfeldt, Geoff LaForte

Journal:

Journal of Computer and System Sciences

Year:

2007

Language:

english

File:

PDF, 253 KB

english, 2007

18

Degree spectra and computable dimensions in algebraic structures

Denis R. Hirschfeldt, Bakhadyr Khoussainov, Richard A. Shore, Arkadii M. Slinko

Journal:

Annals of Pure and Applied Logic

Year:

2002

Language:

english

File:

PDF, 339 KB

english, 2002

19

Degree spectra of relations on structures of finite computable dimension

Denis R. Hirschfeldt

Journal:

Annals of Pure and Applied Logic

Year:

2002

Language:

english

File:

PDF, 415 KB

english, 2002

20

Undecidability and 1-types in intervals of the computably enumerable degrees

Klaus Ambos-Spies, Denis R. Hirschfeldt, Richard A. Shore

Journal:

Annals of Pure and Applied Logic

Year:

2000

Language:

english

File:

PDF, 338 KB

english, 2000

21

Untersuchungen über einige aluminium-, eisen- und vanadinhaltige Halogenochromisalze

Niels Bjerum, G. Hirschfeldt Hansen

Journal:

Zeitschrift für anorganische und allgemeine Chemie

Year:

1909

Language:

german

File:

PDF, 451 KB

german, 1909

22

Über einen Zusammenhang zwischen den Atomvolumina der Elemente und ihrer Fähigkeit Komplexverbindungen zu bilden

G. Hirschfeldt Hansen

Journal:

Zeitschrift für anorganische und allgemeine Chemie

Year:

1912

Language:

german

File:

PDF, 263 KB

german, 1912

23

Computability-theoretic and proof-theoretic aspects of partial and linear orderings

Rodney G. Downey, Denis R. Hirschfeldt, Steffen Lempp, Reed Solomon

Journal:

Israel Journal of Mathematics

Year:

2003

Language:

english

File:

PDF, 987 KB

english, 2003

24

“Das Gute von heute ist das Mittelmäßige von Morgen“

Andrea Tabatt-Hirschfeldt

Journal:

Year:

2010

Language:

german

File:

PDF, 136 KB

german, 2010

25

Randomness, Computability, and Density

Downey, Rod G., Hirschfeldt, Denis R., Nies, André

Journal:

SIAM Journal on Computing

Year:

2002

Language:

english

File:

PDF, 203 KB

english, 2002

26

[Society of Petroleum Engineers Latin American & Caribbean Petroleum Engineering Conference - Buenos Aires, Argentina (2007-04-15)] Latin American & Caribbean Petroleum Engineering Conference - Artificial-Lift Systems Overview and Evolution in a Mature Basin: Case Study of Golfo San Jorge

Hirschfeldt, Clemente Marcelo, Martinez, Paulino, Distel, Fernando Raul

Language:

english

File:

PDF, 1.11 MB

english

27

Randomness and reducibility

Rod G. Downey, Denis R. Hirschfeldt, Geoff LaForte

Journal:

Journal of Computer and System Sciences

Year:

2004

Language:

english

File:

PDF, 316 KB

english, 2004

28

Finitely presented expansions of computably enumerable semigroups

D. R. Hirschfeldt, B. Khoussainov

Journal:

Algebra and Logic

Year:

2012

Language:

english

File:

PDF, 821 KB

english, 2012

29

Primary tumor of the left auricle simulating mitral stenosis

Miriam Hirschfeldt Field, Maurice A Donovan, Helmuth Simon

Journal:

American Heart Journal

Year:

1945

Language:

english

File:

PDF, 5.26 MB

english, 1945

30

[Theory and Applications of Computability] Algorithmic Randomness and Complexity ||

Downey, Rodney G., Hirschfeldt, Denis R.

Year:

2010

Language:

english

File:

PDF, 8.25 MB

english, 2010

31

Every 1-Generic Computes a Properly 1-Generic

Barbara F. Csima, Rod Downey, Noam Greenberg, Denis R. Hirschfeldt and Joseph S. Miller

Journal:

Journal of Symbolic Logic

Year:

2006

Language:

english

File:

PDF, 816 KB

english, 2006

32

$\Pi _{1}^{0}$Classes and Strong Degree Spectra of Relations

John Chisholm, Jennifer Chubb, Valentina S. Harizanov, Denis R. Hirschfeldt, Carl G. Jockusch, Jr., Timothy McNicholl and Sarah Pingrey

Journal:

Journal of Symbolic Logic

Year:

2007

Language:

english

File:

PDF, 1.38 MB

english, 2007

33

Combinatorial Principles Weaker than Ramsey's Theorem for Pairs

Denis R. Hirschfeldt and Richard A. Shore

Journal:

Journal of Symbolic Logic

Year:

2007

Language:

english

File:

PDF, 2.94 MB

english, 2007

34

Bounding Homogeneous Models

Barbara F. Csima, Valentina S. Harizanov, Denis R. Hirschfeldt and Robert I. Soare

Journal:

Journal of Symbolic Logic

Year:

2007

Language:

english

File:

PDF, 1.56 MB

english, 2007

35

A Δ02Set with No Infinite Low Subset in Either It or Its Complement

Rod Downey, Denis R. Hirschfeldt, Steffen Lempp and Reed Solomon

Journal:

Journal of Symbolic Logic

Year:

2001

Language:

english

File:

PDF, 259 KB

english, 2001

36

Degree Spectra of Relations on Computable Structures in the Presence of Δ02Isomorphisms

Denis R. Hirschfeldt

Journal:

Journal of Symbolic Logic

Year:

2002

Language:

english

File:

PDF, 505 KB

english, 2002

37

Degree Spectra of Intrinsically C.E. Relations

Denis R. Hirschfeldt

Journal:

Journal of Symbolic Logic

Year:

2001

Language:

english

File:

PDF, 600 KB

english, 2001

38

Bounding Prime Models

Barbara F. Csima, Denis R. Hirschfeldt, Julia F. Knight and Robert I. Soare

Journal:

Journal of Symbolic Logic

Year:

2004

Language:

english

File:

PDF, 2.85 MB

english, 2004

39

A Computably Categorical Structure Whose Expansion by a Constant Has Infinite Computable Dimension

Denis R. Hirschfeldt, Bakhadyr Khoussainov and Richard A. Shore

Journal:

Journal of Symbolic Logic

Year:

2003

Language:

english

File:

PDF, 841 KB

english, 2003

40

Prime Models of Theories of Computable Linear Orderings

Denis R. Hirschfeldt

Journal:

Proceedings of the American Mathematical Society

Year:

2001

Language:

english

File:

PDF, 192 KB

english, 2001

41

Degree spectra of relations on computable structures in the presence of Δ2 0 isomorphisms

Hirschfeldt, Denis R.

Journal:

Journal of Symbolic Logic

Year:

2002

Language:

english

File:

PDF, 1.61 MB

english, 2002

42

Molecular and Conventional Epidemiology of Mycobacterium tuberculosis in Botswana: a Population-Based Prospective Study of 301 Pulmonary Tuberculosis Patients

Lockman, S., Sheppard, J. D., Braden, C. R., Mwasekaga, M. J., Woodley, C. L., Kenyon, T. A., Binkin, N. J., Steinman, M., Montsho, F., Kesupile-Reed, M., Hirschfeldt, C., Notha, M., Moeti, T., Tapper

Journal:

Journal of Clinical Microbiology

Year:

2001

Language:

english

File:

PDF, 78 KB

english, 2001

43

Bounding prime models

Csima, Barbara F., Hirschfeldt, Denis R., Knight, Julia F., Soare, Robert I.

Journal:

Journal of Symbolic Logic

Year:

2004

Language:

english

File:

PDF, 1.67 MB

english, 2004

44

A computably categorical structure whose expansion by a constant has infinite computable dimension

Hirschfeldt, Denis R., Khoussainov, Bakhadyr, Shore, Richard A.

Journal:

Journal of Symbolic Logic

Year:

2003

Language:

english

File:

PDF, 2.55 MB

english, 2003

45

Π1 0 classes and strong degree spectra of relations

Chisholm, John, Chubb, Jennifer, Harizanov, Valentina S., Hirschfeldt, Denis R., Jockusch, Carl G., McNicholl, Timothy, Pingrey, Sarah

Journal:

Journal of Symbolic Logic

Year:

2007

Language:

english

File:

PDF, 1.16 MB

english, 2007

46

Bounding homogenous models

Barbara F. Csima,, Harizanov, Valentina S., Hirschfeldt, Denis R., Soare, Robert I.

Journal:

Journal of Symbolic Logic

Year:

2007

Language:

english

File:

PDF, 1.34 MB

english, 2007

47

Combinatorial principles weaker than Ramsey's Theorem for pairs

Hirschfeldt, Denis R., Shore, Richard A.

Journal:

Journal of Symbolic Logic

Year:

2007

Language:

english

File:

PDF, 2.42 MB

english, 2007

48

Every 1-generic computes a properly 1-generic

Csima, Barbara F., Downey, Rod, Greenberg, Noam, Hirschfeldt, Denis R., Miller, Joseph S.

Journal:

Journal of Symbolic Logic

Year:

2006

Language:

english

File:

PDF, 758 KB

english, 2006

49

Counting the changes of random Δ20 sets

Figueira, Santiago, Hirschfeldt, Denis R., Miller, Joseph S., Ng, Keng Meng, Nies, André

Journal:

Journal of Logic and Computation

Year:

2015

Language:

english

File:

PDF, 184 KB

english, 2015

50

Die Organisationsstruktur der Kommunalverwaltung, veränderte Herausforderungen und neue Möglichkeiten

Andrea Tabatt-Hirschfeldt

Journal:

Zeitschrift für öffentliche und gemeinwirtschaftliche Unternehmen: ZögU / Journal for Public and Nonprofit Services

Year:

2007

Language:

german

File:

PDF, 918 KB

german, 2007