Dag Oskar Madsen

Associate Professor
Faculty of Education and Arts
Email
dag.o.madsen@nord.no
Phone
+47 75 51 77 79
Study location
Bodø
Office
Bodø, Hovedbygget, 2465
2025
Giving a Boost to Textbook Tasks Recent Advances in Mathematics Textbook Research and Development: Proceedings of the 4th International Conference on Mathematics Textbook Research and Development 2025 - Marja Van den Heuvel-Panhuizen, Dag Oskar Madsen, Monica Alstad, Ruth-Amalie Breckan, Anne Marthe Johansen
2022
Software zur Entwicklung räumlich-visueller Fähigkeiten 2022 Mathematik differenziert - Klaus-Peter Eichler, Daniela Bimova, Jiri Brehovsky, Dag Oskar Madsen
Early childhood teachers’ awareness of the characteristics of picture books for learning mathematics Proceedings of the 12th Congress of the European Society for Research in Mathematics Education (CERME12) 2022 - Marja Van den Heuvel-Panhuizen, Iliada Elia, Dag Oskar Madsen, Eleni Deliyianni, Cathrine Bjerknes
2020
On the classification of higher Auslander algebras for Nakayama algebras 2020 Journal of Algebra - Dag Oskar Madsen, René Marczinzik, Gjergji Zaimi
2018
On bounds of homological dimensions in Nakayama algebras 2018 Proceedings of the American Mathematical Society, Series B - Dag Oskar Madsen, Rene Marczinzik
2017
Hochschild homology and trivial extension algebras 2017 Proceedings of the American Mathematical Society - Petter Andreas Bergh, Dag Oskar Madsen
Quasi-hereditary algebras and the category of modules with standard filtration 2017 São Paulo Journal of Mathematical Sciences - Dag Oskar Madsen
2015
Cohomological comparison theorem 2015 Journal of Pure and Applied Algebra - Edward L. Green, Dag Oskar Madsen, Eduardo N. Marcos
2013
Filtrations in abelian categories with a tilting object of homological dimension two 2013 Journal of Algebra and its Applications - Bernt Tore Jensen, Dag Oskar Madsen, Xiuping Su
Quasi-hereditary algebras and generalized Koszul 2013 Journal of Algebra - Dag Oskar Madsen
2012
HOCHSCHILD HOMOLOGY AND TRUNCATED CYCLES 2012 Proceedings of the American Mathematical Society - Petter Andreas Bergh, Y Han, Dag Oskar Madsen
2011
On a common generalization of Koszul duality and tilting equivalence 2011 Advances in Mathematics - Dag Oskar Madsen
2009
Hochschild homology and global dimension 2009 Bulletin of the London Mathematical Society - Petter Andreas Bergh, Dag Oskar Madsen
DEGENERATION OF A-INFINITY MODULES 2009 Transactions of the American Mathematical Society - Bernt Tore Jensen, Dag Oskar Madsen, XP Su
2007
The Koszul dual of a weakly Koszul module 2007 Journal of Algebra - Dag Oskar Madsen
2006
Ext-algebras and derived equivalences 2006 Colloquium Mathematicum - Dag Oskar Madsen
2005
Finite Hochshcild cohomology without finite global dimension 2005 Mathematical Research Letters - Ragnar-Olaf Buchweitz, Edward L. Green, Dag Oskar Madsen, Øyvind Solberg
2004
Projective dimensions and almost split sequences 2004 Journal of Algebra - Dag Oskar Madsen
1998
Almost split sequences for commutative artinian rings 1998 CMS Conference Proceedings Series - Dag Oskar Madsen
2024
Enriching textbook tasks. Academic presentation at The 15th International Congress on Mathematics Education 2024 The 15th International Congress on Mathematics Education, Sydney - Marja Van den Heuvel-Panhuizen, Trygve Kvåle Løken, Dag Oskar Madsen
The classification of Higher Auslander algebras among Nakayama algebras 2024 Algebraseminar - Dag Oskar Madsen
2023
Review of the book "Relative homogeneous Koszul duality" by Leonid Positselski. 2023 American Mathematical Society Mathematical Reviews - Dag Oskar Madsen
2022
The classification of higher Auslander algebras among Nakayama algebras 2022 28th Nordic Congress of Mathematicians - Dag Oskar Madsen
2021
Mathematical Learning Environments in Norwegian ECEC Child Groups 2021 The 14th International Congress on Mathematical Education (ICME-14) - Øyvind Jacobsen Bjørkås, Dag Oskar Madsen, Anne Grethe Baustad, Elisabeth Bjørnestad
Teachers’ awareness of the learning-supportive characteristics of picture books in early mathematics 2021 EARLI 2021 - Online - Iliada Elia, Marja Van den Heuvel-Panhuizen, Dag Oskar Madsen, Eleni Deliyianni, Cathrine Bjerknes
2019
Informal statistical inference and permutation tests 2019 - Øyvind Jacobsen Bjørkås, Kjetil Brinchmann Halvorsen, Dag Oskar Madsen
Informal statistical inference and permutation tests 2019 CERME 11 - Øyvind Jacobsen Bjørkås, Kjetil Brinchmann Halvorsen, Dag Oskar Madsen
2018
Global dimension of Nakayama algebras 2018 CIMPA Medellin 2018, Geometric and Homological Methods in the Representation Theory of Associative Algebras and Their Applications - Dag Oskar Madsen
2017
Global dimension of Nakayama algebras 2017 IDUN 75 - Dag Oskar Madsen
Filtrations in abelian categories determined by a tilting object 2017 Bath Geometry Seminar - Dag Oskar Madsen
Filtrations in Abelian Categories Determined by a Tilting Object 2017 Pure Maths Research Seminars - Dag Oskar Madsen
Global dimension of Nakayama algebras 2017 Nasjonalt algebramøte - Dag Oskar Madsen
2016
Filtrations in abelian categories determined by a tilting object 2016 ICRA 2016 - Dag Oskar Madsen
Filtrations in abelian categories determined by a tilting object 2016 27th Nordic Congress of Mathematicians - Dag Oskar Madsen
2015
Hvordan tenke matematikk? 2015 Fagdagen 2015 - Dag Oskar Madsen
Filtrations in abelian categories determined by a tilting object 2015 Algebraic Representation Theory 2015 (CIMPA research school) - Dag Oskar Madsen
2014
On Han's conjecture 2014 Nasjonalt algebramøte 2014 - Dag Oskar Madsen
2013
Quasi-hereditary algebras and Delta-filtered modules 2013 Algebraic and Geometric Aspects of Representation Theory (CIMPA research school) - Dag Oskar Madsen
Hochschild homology and global dimension 2013 26th Nordic and 1st European-Nordic Congress of Mathematicians - Dag Oskar Madsen
On Han's conjecture 2013 Hochschild Cohomology: Structure and Applications IV - Dag Oskar Madsen
Filtrasjoner i abelske kategorier 2013 Nasjonalt algebramøte - Dag Oskar Madsen
Filtrations in abelian categories determined by tilting objects 2013 Weekly seminar, group of algebra - Dag Oskar Madsen
2012
On the category of modules with Δ-filtration 2012 ICRA 2012 - Dag Oskar Madsen
Extension Algebras 2012 Algebraic Structures, their representation and their applications in geometry and non-associative models (CIMPA School) - Dag Oskar Madsen
2011
T-Koszul-algebraer 2011 Nasjonalt Algebramøte - Dag Oskar Madsen
Filtrations determined by tilting objects of projective dimension two 2011 Algebraseminar - Dag Oskar Madsen
T-Koszul-algebraer 2011 Algebraseminaret i Oslofjordregionen - Dag Oskar Madsen
2010
T-Koszul algebras 2010 utenTitteltekst - Dag Oskar Madsen
2001
Origins and statements 2001 Summer School 2001: Homological conjectures for finite dimensional algebras - Dag Oskar Madsen
Projective dimension and Auslander-Reiten sequences 2001 [Mangler data] - Dag Oskar Madsen
2000
Maps between general representations 2000 Summer school, Geometry of quiver-representations and preprojective algebras - Dag Oskar Madsen
Homological properties of almost split sequences 2000 9th International Conference on Representatons of Algebras - Dag Oskar Madsen
Projective dimensions in almost split sequences 2000 Euroconference Rings, Modules and Representations - Dag Oskar Madsen
1999
Deriving DG categories: Standard functors 1999 [Mangler data] - Dag Oskar Madsen
Homological properties of almost split sequences 1999 [Mangler data] - Dag Oskar Madsen
1998
Homological properties of almost split sequences 1998 International Conference Representation Theory of Algebras - Dag Oskar Madsen