2020

• Bauer, Ulrich; Botnan, Magnus Bakke; Oppermann, Steffen; Steen, Johan. (2020) Cotorsion torsion triples and the representation theory of filtered hierarchical clustering. Advances in Mathematics. volum 369:107171.
  Vitenskapelig artikkel

2019

• Oppermann, Steffen; Psaroudakis, Chrysostomos; Stai, Torkil Utvik. (2019) Change of rings and singularity categories. Advances in Mathematics. volum 350.
  Vitenskapelig artikkel

2017

• Lerner, Boris; Oppermann, Steffen. (2017) A RECOLLEMENT APPROACH to GEIGLE-LENZING WEIGHTED PROJECTIVE VARIETIES. Nagoya mathematical journal. volum 226.
  Vitenskapelig artikkel
• Nornes, Nils Melvær; Oppermann, Steffen. (2017) Degenerations of Submodules and Composition Series. Algebras and Representation Theory. volum 20 (4).
  Vitenskapelig artikkel
• Oppermann, Steffen. (2017) Quivers for silting mutation. Advances in Mathematics. volum 307.
  Vitenskapelig artikkel

2015

• Bergh, Petter Andreas; Oppermann, Steffen; Jorgensen, David A. (2015) The Gorenstein defect category. Quarterly Journal of Mathematics. volum 66 (2).
  Vitenskapelig artikkel
• Oppermann, Steffen; Reiten, Idun; Thomas, Hugh. (2015) Quotient closed subcategories of quiver representations. Compositio Mathematica. volum 151 (3).
  Vitenskapelig artikkel

2014

• Amiot, Claire; Oppermann, Steffen. (2014) Cluster equivalence and graded derived equivalence. Documenta Mathematica. volum 19 (2014).
  Vitenskapelig artikkel
• Amiot, Claire; Oppermann, Steffen. (2014) Higher preprojective algebras and stably Calabi-Yau properties. Mathematical Research Letters. volum 21 (4).
  Vitenskapelig artikkel
• Bergh, Petter Andreas; Jorgensen, David Alan; Oppermann, Steffen. (2014) The negative side of cohomology for Calabi-Yau categories. Bulletin of the London Mathematical Society. volum 46 (2).
  Vitenskapelig artikkel
• Bergh, Petter Andreas; Oppermann, Steffen; Jorgensen, David Alan. (2014) The gorenstein defect category. Quarterly Journal of Mathematics. volum 66 (2).
  Vitenskapelig artikkel
• Herschend, Martin; Iyama, Osamu; Oppermann, Steffen. (2014) N-representation infinite algebras. Advances in Mathematics. volum 252.
  Vitenskapelig artikkel

2013

• Amiot, Claire; Oppermann, Steffen. (2013) Algebras of acyclic cluster type: Tree type and type Ã. Nagoya mathematical journal. volum 211.
  Vitenskapelig artikkel
• Amiot, Claire; Oppermann, Steffen. (2013) The Image of the Derived Category in the Cluster Category. International Mathematics Research Notices (IMRN).
  Vitenskapelig artikkel
• Geiss, C; Keller, B; Oppermann, Steffen. (2013) n-angulated categories. Journal für die Reine und Angewandte Mathematik. volum 675.
  Vitenskapelig artikkel
• Iyama, Osamu; Oppermann, Steffen. (2013) Stable categories of higher preprojective algebras. Advances in Mathematics. volum 244.
  Vitenskapelig artikkel

2012

• Bertani-Økland, Marco Angel; Oppermann, Steffen; Wrålsen, Anette. (2012) Graded mutation in cluster categories coming from hereditary categories with a tilting object. Journal of Pure and Applied Algebra. volum 216 (12).
  Vitenskapelig artikkel
• Oppermann, Steffen; Stovicek, Jan. (2012) Generating the bounded derived category and perfect ghosts. Bulletin of the London Mathematical Society. volum 44.
  Vitenskapelig artikkel
• Oppermann, Steffen; Thomas, Hugh. (2012) Higher-dimensional cluster combinatorics and representation theory. Journal of the European Mathematical Society (Print). volum 14 (6).
  Vitenskapelig artikkel

2011

• Bergh, Petter Andreas; Oppermann, Steffen. (2011) Cluster tilting and complexity. International Mathematics Research Notices (IMRN).
  Vitenskapelig artikkel
• Bergh, Petter Andreas; Oppermann, Steffen. (2011) Cohomological symmetry in triangulated categories. Journal of Algebra. volum 347 (1).
  Vitenskapelig artikkel
• Bertani-Økland, Marco Angel; Oppermann, Steffen. (2011) Mutating loops and 2-cycles in 2-CY triangulated categories. Journal of Algebra. volum 334 (1).
  Vitenskapelig artikkel
• Iyama, Osamu; Oppermann, Steffen. (2011) n-REPRESENTATION-FINITE ALGEBRAS AND n-APR TILTING. Transactions of the American Mathematical Society. volum 363 (12).
  Vitenskapelig artikkel
• Miemietz, V; Oppermann, Steffen. (2011) On the Representation Dimension of Schur Algebras. Algebras and Representation Theory. volum 14 (2).
  Vitenskapelig artikkel

2010

• Bergh, Petter Andreas; Iyengar, Srikanth B.; Krause, Henning; Oppermann, Steffen. (2010) Dimensions of triangulated categories via Koszul objects. Mathematische Zeitschrift. volum 265 (4).
  Vitenskapelig artikkel
• Bertani-Økland, Marco Angel; Oppermann, Steffen; Wrålsen, Anette. (2010) Constructing tilted algebras from cluster-tilted algebras. Journal of Algebra. volum 323 (9).
  Vitenskapelig artikkel
• Bertani-Økland, Marco Angel; Oppermann, Steffen; Wrålsen, Anette. (2010) Finding a cluster-tilting object for a representation finite cluster-tilted algebra. Colloquium Mathematicum. volum 121 (2).
  Vitenskapelig artikkel
• Oppermann, Steffen. (2010) Hochschild cohomology and homology of quantum complete intersections. Algebra & Number Theory. volum 4 (7).
  Vitenskapelig artikkel
• Oppermann, Steffen. (2010) Representation dimension of quasi-tilted algebras. Journal of the London Mathematical Society. volum 81.
  Vitenskapelig artikkel
• Oppermann, Steffen. (2010) The dimension of the derived category of elliptic curves and tubular weighted projective lines. Colloquium Mathematicum. volum 119 (1).
  Vitenskapelig artikkel

2009

• Oppermann, Steffen. (2009) Lower bounds for Auslander's representation dimension. Duke mathematical journal. volum 148 (2).
  Vitenskapelig artikkel
• Oppermann, Steffen. (2009) Wild algebras have one-point extensions of representation dimension at least four. Journal of Pure and Applied Algebra. volum 213 (10).
  Vitenskapelig artikkel

2008

• Bergh, Petter Andreas; Oppermann, S. (2008) The representation dimension of quantum complete intersections. Journal of Algebra. volum 320.
  Vitenskapelig artikkel
• Bergh, Petter Andreas; Oppermann, S. (2008) Cohomology of twisted tensor products. Journal of Algebra. volum 320.
  Vitenskapelig artikkel