2024

• Fosse, Didrik; Oppermann, Steffen; Stai, Torkil Utvik. (2024) Non-piecewise hereditary Nakayama algebras. Journal of Algebra
  Vitenskapelig artikkel
• Botnan, Magnus; Oppermann, Steffen; Oudot, Steve. (2024) Signed Barcodes for Multi-parameter Persistence via Rank Decompositions and Rank-Exact Resolutions. Foundations of Computational Mathematics
  Vitenskapelig artikkel
• Botnan, Magnus; Oppermann, Steffen; Oudot, Steve; Scoccola, Luis. (2024) On the bottleneck stability of rank decompositions of multi-parameter persistence modules. Advances in Mathematics
  Vitenskapelig artikkel

2023

• Oppermann, Steffen; Psaroudakis, Chrysostomos; Stai, Torkil Utvik. (2023) Partial Serre duality and cocompact objects. Selecta Mathematica, New Series
  Vitenskapelig artikkel
• Herschend, Martin; Iyama, Osamu; Minamoto, Hiroyuki; Oppermann, Steffen. (2023) Representation Theory of Geigle-Lenzing Complete Intersections. Memoirs of the American Mathematical Society
  Vitenskapelig artikkel

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
  Vitenskapelig artikkel

2019

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

2017

• Lerner, Boris; Oppermann, Steffen. (2017) A RECOLLEMENT APPROACH to GEIGLE-LENZING WEIGHTED PROJECTIVE VARIETIES. Nagoya mathematical journal
  Vitenskapelig artikkel
• Nornes, Nils Melvær; Oppermann, Steffen. (2017) Degenerations of Submodules and Composition Series. Algebras and Representation Theory
  Vitenskapelig artikkel
• Stai, Torkil Utvik; Oppermann, Steffen. (2017) On orbit and localization constructions for triangulated categories. Norges teknisk-naturvitenskapelige universitet Norges teknisk-naturvitenskapelige universitet
  Doktorgradsavhandling
• Oppermann, Steffen. (2017) Quivers for silting mutation. Advances in Mathematics
  Vitenskapelig artikkel

2015

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

2014

• Amiot, Claire; Oppermann, Steffen. (2014) Cluster equivalence and graded derived equivalence. Documenta Mathematica
  Vitenskapelig artikkel
• Amiot, Claire; Oppermann, Steffen. (2014) Higher preprojective algebras and stably Calabi-Yau properties. Mathematical Research Letters
  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
  Vitenskapelig artikkel
• Herschend, Martin; Iyama, Osamu; Oppermann, Steffen. (2014) N-representation infinite algebras. Advances in Mathematics
  Vitenskapelig artikkel
• Bergh, Petter Andreas; Oppermann, Steffen; Jorgensen, David Alan. (2014) The gorenstein defect category. Quarterly Journal of Mathematics
  Vitenskapelig artikkel

2013

• Iyama, Osamu; Oppermann, Steffen. (2013) Stable categories of higher preprojective algebras. Advances in Mathematics
  Vitenskapelig artikkel
• Amiot, Claire; Oppermann, Steffen. (2013) Algebras of acyclic cluster type: Tree type and type Ã. Nagoya mathematical journal
  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
  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
  Vitenskapelig artikkel
• Oppermann, Steffen; Thomas, Hugh. (2012) Higher-dimensional cluster combinatorics and representation theory. Journal of the European Mathematical Society (Print)
  Vitenskapelig artikkel
• Oppermann, Steffen; Stovicek, Jan. (2012) Generating the bounded derived category and perfect ghosts. Bulletin of the London Mathematical Society
  Vitenskapelig artikkel

2011

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

2010

• Oppermann, Steffen. (2010) The dimension of the derived category of elliptic curves and tubular weighted projective lines. Colloquium Mathematicum
  Vitenskapelig artikkel
• Oppermann, Steffen. (2010) Hochschild cohomology and homology of quantum complete intersections. Algebra & Number Theory
  Vitenskapelig artikkel
• Bertani-Økland, Marco Angel; Oppermann, Steffen; Wrålsen, Anette. (2010) Constructing tilted algebras from cluster-tilted algebras. Journal of Algebra
  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
  Vitenskapelig artikkel
• Oppermann, Steffen. (2010) Representation dimension of quasi-tilted algebras. Journal of the London Mathematical Society
  Vitenskapelig artikkel
• Bergh, Petter Andreas; Iyengar, Srikanth B.; Krause, Henning; Oppermann, Steffen. (2010) Dimensions of triangulated categories via Koszul objects. Mathematische Zeitschrift
  Vitenskapelig artikkel

2009

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

2008

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