Jens Høyrup

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• Foredrag “How Benedetto da Firenze created symbolic linear algebra with four to five unknowns – gave the technique a name – but did not think he had produced an important innovation”

  Jens Høyrup (Speaker)

  16 Dec 2021

  Activity: Talk or presentation › Lecture and oral contribution

  File

• Two algebraic unknowns in Latin and Italian mathematics, 1200-1500: known but not considered anything special

  Jens Høyrup (Speaker)

  20 Dec 2020

  Activity: Talk or presentation › Lecture and oral contribution

  File

• Indlæg “For the celebration of Enrico Giusti’s edition of the Liber abbaci”

  Jens Høyrup (Speaker)

  13 Nov 2020

  Activity: Talk or presentation › Lecture and oral contribution

  File

• Abbacus school mathematics and its influence on the reshaping of Early Modern mathematics

  Jens Høyrup (Speaker)

  8 Oct 2018 → 26 Oct 2018

  Activity: Talk or presentation › Lecture and oral contribution

• Gæsteforelæsning til institutåbning, "From Hesiod to Saussure, from Hippocrates to Jevons: an Introduction to the History of Scientific Thought between Iran and the Atlantic. A tale about a mammoth project"

  Jens Høyrup (Speaker)

  16 Dec 2018

  Activity: Talk or presentation › Lecture and oral contribution

  File

• Gæsteforelæsning " The History of Islamic Scientific Thought in historical and cultural context"

  Jens Høyrup (Speaker)

  3 Nov 2018

  Activity: Talk or presentation › Lecture and oral contribution

  File

• Gæsteforelæsning "From mathematical explanation, over locally argued demonstration, to the practice and ideology of axiomatics –- rethinking Greek theoretical geometry"

  Jens Høyrup (Speaker)

  4 Dec 2018

  Activity: Talk or presentation › Lecture and oral contribution

  File

• Medieval rise and decline of the European University -- and a bit about its 19th-century resurrection

  Jens Høyrup (Lecturer)

  12 Oct 2018

  Activity: Talk or presentation › Lecture and oral contribution

• Forelæsning "History of the Medieval European University"

  Jens Høyrup (Speaker)

  11 May 2017

  Activity: Talk or presentation › Lecture and oral contribution

• Seleucid, Demotic and Mediterranean mathematics, Chapters VIII and IX of the Nine Chapters, and the role of subscientific diffusion

  Jens Høyrup (Speaker)

  30 Mar 2016

  Activity: Talk or presentation › Lecture and oral contribution

  File

• An introduction to the history of scientific thought between Iran and the Atlantic

  Jens Høyrup (Speaker)

  24 Feb 2016 → 9 Mar 2016

  Activity: Talk or presentation › Lecture and oral contribution

  File

• Was there a Baroque science in seventeenth-century Western Europe? And if so, how did it look?

  Jens Høyrup (Speaker)

  4 Mar 2016

  Activity: Talk or presentation › Lecture and oral contribution

  File

• Incoherent development in slow motion: the introduction and use of algebraic symbolization in abbacus- and related manuscripts, c. 1300 to c. 1550

  Jens Høyrup (Lecturer)

  5 Jun 2015

  Activity: Talk or presentation › Lecture and oral contribution

  File

• Does it make sense to speak of a Baroque science in Western Europe in the 17th century? And if so, which sense?

  Jens Høyrup (Lecturer)

  19 May 2015

  Activity: Talk or presentation › Lecture and oral contribution

  File

• State, ‘Justice’, Scribal Culture & Mathematics in Ancient Mesopotamia

  Jens Høyrup (Lecturer)

  23 May 2014

  Activity: Talk or presentation › Lecture and oral contribution

• State, ‘Justice’, Scribal Culture and Mathematics in Ancient Mesopotamia

  Jens Høyrup (Lecturer)

  4 Jul 2014

  Activity: Talk or presentation › Lecture and oral contribution

• Staat, Verwaltung, Schreiberkultur und Mathematik in Mesopotamien

  Jens Høyrup (Lecturer)

  21 Jan 2014

  Activity: Talk or presentation › Lecture and oral contribution

• Ancient Egyptian mathematics

  Jens Høyrup (Lecturer)

  12 May 2014

  Activity: Talk or presentation › Lecture and oral contribution

• Baroque Mind Set and New Science

  Jens Høyrup (Lecturer)

  26 Jun 2013

  Activity: Talk or presentation › Lecture and oral contribution

• State, "justice" and scribal culture in Mesopotamia, Uruk IV to Assurbanipal

  Jens Høyrup (Speaker)

  24 May 2013

  Activity: Talk or presentation › Lecture and oral contribution

• State, 'Justice', Scribal Culture and Mathematics in Ancient Mesopotamia

  Jens Høyrup (Speaker)

  1 Jul 2013

  Activity: Talk or presentation › Lecture and oral contribution

• The 15th-17th-century transformation of abbacus-algebra and the Zilsel Thesis

  Jens Høyrup (Speaker)

  23 May 2013

  Activity: Talk or presentation › Lecture and oral contribution

• Fibonacci: Protagonist or Witness? Who Taught Catholic Christian Europe about Mediterranean Commercial Arithmetic?

  Jens Høyrup (Speaker)

  19 Jun 2013

  Activity: Talk or presentation › Lecture and oral contribution

• il rapporto fra due correnti importanti ma non identici -- piuttosto in conflitto --nel pensiero del Seicento: il barocco e la "nuova filosofia"

  Jens Høyrup (Lecturer)

  1 Mar 2012

  Activity: Talk or presentation › Lecture and oral contribution

• Presentazione di Francesca Incardona (ed., trans.), L'ottica di Eucliden

  Jens Høyrup (Lecturer)

  12 May 2011

  Activity: Talk or presentation › Lecture and oral contribution

  File

• Old Babylonian So-called "Algebra"

  Jens Høyrup (Lecturer)

  30 Mar 2011

  Activity: Talk or presentation › Lecture and oral contribution

• Foredrag "The relation between state, scribal culture and mathematics in Mesopotamia, from the state formation around 3300 BCE until Hellenistic times"

  Jens Høyrup (Lecturer)

  12 Jul 2011

  Activity: Talk or presentation › Lecture and oral contribution

• Presentazione del libro "Euclide: Ottica - immagini di una teoria della visione", ed. Francesca Incardona

  Jens Høyrup (Lecturer)

  12 May 2011

  Activity: Talk or presentation › Lecture and oral contribution

  File

• Workshop on the History of Algebra, Institute for the History of Natural Sciences, Chinese Academy of Science

  Jens Høyrup (Speaker)

  27 Aug 2011

  Activity: Talk or presentation › Lecture and oral contribution

• Den oldbabyloniske "algebra", dens operationer, teknikker og tankeformer

  Jens Høyrup (Lecturer)

  30 Mar 2011

  Activity: Talk or presentation › Lecture and oral contribution

• Foredrag "The very slow development toward symbolism in European algebra, 1150 to 1550, and what can be said about the driving forces"

  Jens Høyrup (Lecturer)

  19 Jul 2011

  Activity: Talk or presentation › Lecture and oral contribution

• Progrès graduel vers le symbolisme algébrique dans la tradition d'abaque ? Peut-être, mais progrès malgré les acteurs, 1300-1500

  Jens Høyrup (Lecturer)

  8 Dec 2010

  Activity: Talk or presentation › Lecture and oral contribution

• ICM Satellite Conference - "Mathematics in ancient times"

  Jens Høyrup (Speaker)

  30 Aug 2010

  Activity: Talk or presentation › Lecture and oral contribution

• Borders and Gates or Open Spaces? Knowledge Cultures in the Mediterranean During the 14th and 15th Centuries. European Society for the History of Science

  Jens Høyrup (Speaker)

  18 Dec 2010

  Activity: Talk or presentation › Lecture and oral contribution

  File

• A diluted al-Karaji in Abbacus Mathematics: Contribution to the Tenth Maghrebian Colloquium on the History of Arabic Mathematics, Tunis, May 29-31, 2010

  Jens Høyrup (Lecturer)

  31 May 2010

  Activity: Talk or presentation › Lecture and oral contribution

• Colloque "Courants actuels en histoire des mathématiques"

  Jens Høyrup (Speaker)

  21 Oct 2010

  Activity: Talk or presentation › Lecture and oral contribution

• Neugebauer conference 2010 - Otto Neugebauer between history and practice of the exact sciences

  Jens Høyrup (Speaker)

  12 Nov 2010

  Activity: Talk or presentation › Lecture and oral contribution

• Stumbling Toward Symbolism: Abbreviations and Margin Calculations in Italian Abbacus Manuscripts

  Jens Høyrup (Lecturer)

  27 Oct 2009

  Activity: Talk or presentation › Lecture and oral contribution

• How to transfer the conceptual structure of Old Babylonian Mathematics: solutions and inherent problems.◄

  Jens Høyrup (Lecturer)

  28 Jul 2009

  Activity: Talk or presentation › Lecture and oral contribution

• Hesitating progress - the slow development toward algebraic symbolization in abbacus- and related manuscripts, c. 1300 to c. 1550

  Jens Høyrup (Lecturer)

  29 Aug 2009

  Activity: Talk or presentation › Lecture and oral contribution

• Forgetting, celebrating and reconstructing past science

  Jens Høyrup (Lecturer)

  27 Nov 2009

  Activity: Talk or presentation › Lecture and oral contribution

• "Algèbre sur argile": Présentation d'un livre de vulgarisation sur l'algèbre babylonien

  Jens Høyrup (Lecturer)

  25 Nov 2009

  Activity: Talk or presentation › Lecture and oral contribution

• Practitioners - school teachers - mathematicians: the divisions of pre-modern mathematics and its actors

  Jens Høyrup (Speaker)

  5 Sep 2003 → 11 Sep 2003

  Activity: Talk or presentation › Lecture and oral contribution

  File

• L'Algèbre de Jacopo de Florence: un défi à l'historiographie de l'algèbre presque-moderne

  Jens Høyrup (Speaker)

  30 May 2002 → 1 Jun 2002

  Activity: Talk or presentation › Lecture and oral contribution

• Gab es trotzdem in Babylonien mathematiker?

  Jens Høyrup (Speaker)

  20 Feb 2002 → 22 Feb 2002

  Activity: Talk or presentation › Lecture and oral contribution

• Mathematical justification as non-conceptualized practice: the Babylonian example

  Jens Høyrup (Speaker)

  17 May 2002 → 19 May 2002

  Activity: Talk or presentation › Lecture and oral contribution

• Remarques sur des figures de Babylone à la Grèce

  Jens Høyrup (Speaker)

  8 Nov 2001

  Activity: Talk or presentation › Lecture and oral contribution

• Three related kinds of quasi-algebraic area geometry: Elements II (etc.), "Babylonian algebra", and Surveyors' riddles

  Jens Høyrup (Speaker)

  27 Mar 1999

  Activity: Talk or presentation › Lecture and oral contribution

• Sub-videnskabelig matematik - hvad er det?

  Jens Høyrup (Speaker)

  1997

  Activity: Talk or presentation › Lecture and oral contribution

• "Recreational" and similar problems as evidence for the existence of autonomous practitioners' mathematical cultures, and for the oral character of these cultures

  Jens Høyrup (Speaker)

  17 Jul 1997 → 1 Aug 1997

  Activity: Talk or presentation › Lecture and oral contribution