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Petter Andreas Bergh

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Petter Andreas Bergh

Professor
Department of Mathematical Sciences

petter.bergh@ntnu.no
+4773590485 Sentralbygg 2, 840, Gløshaugen
Personal homepage Algebra group
About Publications Teaching Outreach

About

Petter Andreas Bergh is a Professor at the Department of Mathematical Sciences, where he is a member of the algebra group. He has a Cand.scient and a PhD in mathematics from NTNU.

Publications

  • Chronological
  • By category
  • See all publications in Cristin

2025

  • Bergh, Petter Andreas. (2025) Homology of complexes over finite tensor categories. Journal of Noncommutative Geometry
    Academic article
  • Bergh, Petter Andreas; Jorgensen, David A.; Thompson, Peder. (2025) Dimension and depth inequalities over complete intersections. Arkiv för matematik
    Academic article

2024

  • Bergh, Petter Andreas; Plavnik, Julia Yael; Witherspoon, Sarah. (2024) Support varieties without the tensor product property. Bulletin of the London Mathematical Society
    Academic article

2023

  • Bergh, Petter Andreas. (2023) Separable equivalences, finitely generated cohomology and finite tensor categories. Mathematische Zeitschrift
    Academic article
  • Bergh, Petter Andreas; Jorgensen, David A.. (2023) Categorical matrix factorizations. Annals of K-theory
    Academic article

2021

  • Bergh, Petter Andreas; Jorgensen, David A.; Moore, W. Frank. (2021) Totally Acyclic Approximations. Applied Categorical Structures
    Academic article
  • Bergh, Petter Andreas; Plavnik, Julia Yael; Witherspoon, Sarah. (2021) Support varieties for finite tensor categories: Complexity, realization, and connectedness. Journal of Pure and Applied Algebra
    Academic article
  • Lyng, Reidar; Grønflaten, Lars Trovatten; Bergh, Petter Andreas; Moen, Øystein; Owren, Geir Asle; Pedersen, Eilif. (2021) Fremtidens teknologistudier (FTS), grupperapport: C - Programdrevet tilnærming. NTNU
    Report

2020

  • Bergh, Petter Andreas; Sandøy, Mads Hustad; Solberg, Øyvind. (2020) On support varieties and tensor products for finite dimensional algebras. Journal of Algebra
    Academic article
  • Bergh, Petter Andreas; Thompson, Peder. (2020) Matrix factorizations for self-orthogonal categories of modules. Journal of Algebra and its Applications
    Academic article
  • Bergh, Petter Andreas; Erdmann, Karin; Jorgensen, David A.. (2020) Modules of Constant Jordan Type over Quantum Complete Intersections. Documenta Mathematica
    Academic article
  • Bergh, Petter Andreas; Jorgensen, David A.; Moore, W. Frank. (2020) A converse to a construction of Eisenbud–Shamash. Journal of Commutative Algebra
    Academic article

2019

  • Bergh, Petter Andreas; Erdmann, Karin. (2019) Matrix factorizations for quantum complete intersections. Journal of Homotopy and Related Structures (JHRS)
    Academic article

2018

  • Bergh, Petter Andreas; Jorgensen, David Alan. (2018) Realizability and the Avrunin-Scott theorem for higher-order support varieties. Journal of Algebra and its Applications
    Academic article

2017

  • Bergh, Petter Andreas; Madsen, Dag Oskar. (2017) Hochschild homology and trivial extension algebras. Proceedings of the American Mathematical Society
    Academic article
  • Bergh, Petter Andreas; Jorgensen, David Alan. (2017) A Generalized Dade?s Lemma for Local Rings. Algebras and Representation Theory
    Academic article

2016

  • Bergh, Petter Andreas; Jorgensen, David A. (2016) Complete intersections and equivalences with categories of matrix factorizations. Homology, Homotopy and Applications
    Academic article
  • Langfeldt, Marit Buset; Bergh, Petter Andreas. (2016) Triangulated Categories and Matrix Factorizations. NTNU
    Masters thesis
  • Bergh, Petter Andreas; Jasso, Gustavo; Thaule, Marius. (2016) Higher n-angulations from local rings. Journal of the London Mathematical Society
    Academic article
  • Arentz-Hansen, Emilie Bjørlo; Bergh, Petter Andreas; Thaule, Marius. (2016) The morphism axiom for n-angulated categories. Theory and Applications of Categories
    Academic article

2015

  • Bergh, Petter Andreas; Oppermann, Steffen; Jorgensen, David A. (2015) The Gorenstein defect category. Quarterly Journal of Mathematics
    Academic article

2014

  • Bergh, Petter Andreas; Celikbas, Olgur; Jorgensen, David A. (2014) Homological algebra modulo exact zero-divisors. Kyoto Journal of Mathematics
    Academic article
  • Bergh, Petter Andreas; Jorgensen, David Alan; Oppermann, Steffen. (2014) The negative side of cohomology for Calabi-Yau categories. Bulletin of the London Mathematical Society
    Academic article
  • Bergh, Petter Andreas; Steen, Johan. (2014) Generators and representability in triangulated categories. Doktoravhandlinger ved NTNU (241)
    Doctoral dissertation
  • Bergh, Petter Andreas; Thaule, Marius. (2014) The Grothendieck group of an n-angulated category. Journal of Pure and Applied Algebra
    Academic article
  • Bergh, Petter Andreas; Turner, W.. (2014) On the representation dimension of skew group algebras, wreath products and blocks of Hecke algebras. Bulletin of the London Mathematical Society
    Academic article
  • Bergh, Petter Andreas; Jorgensen, David Alan. (2014) On growth in minimal totally acyclic complexes. Journal of Commutative Algebra
    Academic article
  • Bergh, Petter Andreas. (2014) On the existence of cluster tilting objects in triangulated categories. Journal of Algebra
    Academic article
  • Bergh, Petter Andreas; Oppermann, Steffen; Jorgensen, David Alan. (2014) The gorenstein defect category. Quarterly Journal of Mathematics
    Academic article

2013

  • Bergh, Petter Andreas; Thaule, Marius. (2013) The axioms for n-angulated categories. Algebraic and Geometric Topology
    Academic article
  • Bergh, Petter Andreas. (2013) On the vanishing of homology with modules of finite length. Mathematica Scandinavica
    Academic article
  • Bergh, Petter Andreas; Jorgensen, David A. (2013) Tate-Hochschild homology and cohomology of Frobenius algebras. Journal of Noncommutative Geometry
    Academic article

2012

  • Bergh, Petter Andreas; Han, Y; Madsen, Dag Oskar. (2012) HOCHSCHILD HOMOLOGY AND TRUNCATED CYCLES. Proceedings of the American Mathematical Society
    Academic article

2011

  • Bergh, Petter Andreas; Jorgensen, David A. (2011) On the vanishing of homology for modules of finite complete intersection dimension. Journal of Pure and Applied Algebra
    Academic article
  • Bergh, Petter Andreas; Erdmann, Karin. (2011) The stable Auslander-Reiten quiver of a quantum complete intersection. Bulletin of the London Mathematical Society
    Academic article
  • Bergh, Petter Andreas; Oppermann, Steffen. (2011) Cluster tilting and complexity. International Mathematics Research Notices (IMRN)
    Academic article
  • Bergh, Petter Andreas. (2011) On the vanishing of cohomology in triangulated categories. Homology, Homotopy and Applications
    Academic article
  • Bergh, Petter Andreas; Oppermann, Steffen. (2011) Cohomological symmetry in triangulated categories. Journal of Algebra
    Academic article
  • Bergh, Petter Andreas; Erdmann, Karin. (2011) The representation dimension of Hecke algebras and symmetric groups. Advances in Mathematics
    Academic article

2010

  • Bergh, Petter Andreas; Madsen, Dag. (2010) Hochschild homology and split pairs. Bulletin des Sciences Mathématiques
    Academic article
  • Bergh, Petter Andreas; Iyengar, Srikanth B.; Krause, Henning; Oppermann, Steffen. (2010) Dimensions of triangulated categories via Koszul objects. Mathematische Zeitschrift
    Academic article
  • Bergh, Petter Andreas; Solberg, Øyvind. (2010) Relative support varieties. Quarterly Journal of Mathematics
    Academic article

2009

  • Bergh, Petter Andreas; Erdmann, Karin. (2009) Support and rank varieties for quantum complete intersections. Oberwolfach Reports
    Abstract
  • Bergh, Petter Andreas. (2009) Support via central ring actions. Oberwolfach Reports
    Abstract
  • Bergh, Petter Andreas; Erdmann, Karin. (2009) The Avrunin-Scott theorem for quantum complete intersections. Journal of Algebra
    Academic article
  • Bergh, Petter Andreas. (2009) Modules with reducible complexity, II. Communications in Algebra
    Academic article
  • Bergh, Petter Andreas. (2009) Orbit algebras and periodicity. Colloquium Mathematicum
    Academic article
  • Bergh, Petter Andreas; Madsen, Dag Oskar. (2009) Hochschild homology and global dimension. Bulletin of the London Mathematical Society
    Academic article
  • Bergh, Petter Andreas. (2009) On complexes of finite complete intersection dimension. Homology, Homotopy and Applications
    Academic article
  • Bergh, Petter Andreas. (2009) Ext-symmetry over quantum complete intersections. Archiv der Mathematik
    Academic article

2008

  • Bergh, Petter Andreas; Oppermann, S. (2008) Cohomology of twisted tensor products. Journal of Algebra
    Academic article
  • Bergh, Petter Andreas; Erdmann, Karin. (2008) Homology and cohomology of quantum complete intersections. Algebra & Number Theory
    Academic article
  • Bergh, Petter Andreas. (2008) On the vanishing of (co)homology over local rings. Journal of Pure and Applied Algebra
    Academic article
  • Bergh, Petter Andreas. (2008) Representation dimension and finitely generated cohomology. Advances in Mathematics
    Academic article
  • Bergh, Petter Andreas; Oppermann, S. (2008) The representation dimension of quantum complete intersections. Journal of Algebra
    Academic article
  • Bergh, Petter Andreas. (2008) Twisted support varieties. Journal of Pure and Applied Algebra
    Academic article

2007

  • Bergh, Petter Andreas. (2007) On the Hochschild (co)homology of quantum exterior algebras. Communications in Algebra
    Academic article
  • Bergh, Petter Andreas. (2007) On support varieties for modules over complete intersections. Proceedings of the American Mathematical Society
    Academic article
  • Bergh, Petter Andreas. (2007) Modules with reducible complexity. Journal of Algebra
    Academic article

2006

  • Bergh, Petter Andreas. (2006) Hochschild cohomology, complexity and support varieties. NTNU
    Doctoral dissertation
  • Bergh, Petter Andreas. (2006) Complexity and periodicity. Colloquium Mathematicum
    Academic article

Journal publications

  • Bergh, Petter Andreas. (2025) Homology of complexes over finite tensor categories. Journal of Noncommutative Geometry
    Academic article
  • Bergh, Petter Andreas; Jorgensen, David A.; Thompson, Peder. (2025) Dimension and depth inequalities over complete intersections. Arkiv för matematik
    Academic article
  • Bergh, Petter Andreas; Plavnik, Julia Yael; Witherspoon, Sarah. (2024) Support varieties without the tensor product property. Bulletin of the London Mathematical Society
    Academic article
  • Bergh, Petter Andreas. (2023) Separable equivalences, finitely generated cohomology and finite tensor categories. Mathematische Zeitschrift
    Academic article
  • Bergh, Petter Andreas; Jorgensen, David A.. (2023) Categorical matrix factorizations. Annals of K-theory
    Academic article
  • Bergh, Petter Andreas; Jorgensen, David A.; Moore, W. Frank. (2021) Totally Acyclic Approximations. Applied Categorical Structures
    Academic article
  • Bergh, Petter Andreas; Plavnik, Julia Yael; Witherspoon, Sarah. (2021) Support varieties for finite tensor categories: Complexity, realization, and connectedness. Journal of Pure and Applied Algebra
    Academic article
  • Bergh, Petter Andreas; Sandøy, Mads Hustad; Solberg, Øyvind. (2020) On support varieties and tensor products for finite dimensional algebras. Journal of Algebra
    Academic article
  • Bergh, Petter Andreas; Thompson, Peder. (2020) Matrix factorizations for self-orthogonal categories of modules. Journal of Algebra and its Applications
    Academic article
  • Bergh, Petter Andreas; Erdmann, Karin; Jorgensen, David A.. (2020) Modules of Constant Jordan Type over Quantum Complete Intersections. Documenta Mathematica
    Academic article
  • Bergh, Petter Andreas; Jorgensen, David A.; Moore, W. Frank. (2020) A converse to a construction of Eisenbud–Shamash. Journal of Commutative Algebra
    Academic article
  • Bergh, Petter Andreas; Erdmann, Karin. (2019) Matrix factorizations for quantum complete intersections. Journal of Homotopy and Related Structures (JHRS)
    Academic article
  • Bergh, Petter Andreas; Jorgensen, David Alan. (2018) Realizability and the Avrunin-Scott theorem for higher-order support varieties. Journal of Algebra and its Applications
    Academic article
  • Bergh, Petter Andreas; Madsen, Dag Oskar. (2017) Hochschild homology and trivial extension algebras. Proceedings of the American Mathematical Society
    Academic article
  • Bergh, Petter Andreas; Jorgensen, David Alan. (2017) A Generalized Dade?s Lemma for Local Rings. Algebras and Representation Theory
    Academic article
  • Bergh, Petter Andreas; Jorgensen, David A. (2016) Complete intersections and equivalences with categories of matrix factorizations. Homology, Homotopy and Applications
    Academic article
  • Bergh, Petter Andreas; Jasso, Gustavo; Thaule, Marius. (2016) Higher n-angulations from local rings. Journal of the London Mathematical Society
    Academic article
  • Arentz-Hansen, Emilie Bjørlo; Bergh, Petter Andreas; Thaule, Marius. (2016) The morphism axiom for n-angulated categories. Theory and Applications of Categories
    Academic article
  • Bergh, Petter Andreas; Oppermann, Steffen; Jorgensen, David A. (2015) The Gorenstein defect category. Quarterly Journal of Mathematics
    Academic article
  • Bergh, Petter Andreas; Celikbas, Olgur; Jorgensen, David A. (2014) Homological algebra modulo exact zero-divisors. Kyoto Journal of Mathematics
    Academic article
  • Bergh, Petter Andreas; Jorgensen, David Alan; Oppermann, Steffen. (2014) The negative side of cohomology for Calabi-Yau categories. Bulletin of the London Mathematical Society
    Academic article
  • Bergh, Petter Andreas; Thaule, Marius. (2014) The Grothendieck group of an n-angulated category. Journal of Pure and Applied Algebra
    Academic article
  • Bergh, Petter Andreas; Turner, W.. (2014) On the representation dimension of skew group algebras, wreath products and blocks of Hecke algebras. Bulletin of the London Mathematical Society
    Academic article
  • Bergh, Petter Andreas; Jorgensen, David Alan. (2014) On growth in minimal totally acyclic complexes. Journal of Commutative Algebra
    Academic article
  • Bergh, Petter Andreas. (2014) On the existence of cluster tilting objects in triangulated categories. Journal of Algebra
    Academic article
  • Bergh, Petter Andreas; Oppermann, Steffen; Jorgensen, David Alan. (2014) The gorenstein defect category. Quarterly Journal of Mathematics
    Academic article
  • Bergh, Petter Andreas; Thaule, Marius. (2013) The axioms for n-angulated categories. Algebraic and Geometric Topology
    Academic article
  • Bergh, Petter Andreas. (2013) On the vanishing of homology with modules of finite length. Mathematica Scandinavica
    Academic article
  • Bergh, Petter Andreas; Jorgensen, David A. (2013) Tate-Hochschild homology and cohomology of Frobenius algebras. Journal of Noncommutative Geometry
    Academic article
  • Bergh, Petter Andreas; Han, Y; Madsen, Dag Oskar. (2012) HOCHSCHILD HOMOLOGY AND TRUNCATED CYCLES. Proceedings of the American Mathematical Society
    Academic article
  • Bergh, Petter Andreas; Jorgensen, David A. (2011) On the vanishing of homology for modules of finite complete intersection dimension. Journal of Pure and Applied Algebra
    Academic article
  • Bergh, Petter Andreas; Erdmann, Karin. (2011) The stable Auslander-Reiten quiver of a quantum complete intersection. Bulletin of the London Mathematical Society
    Academic article
  • Bergh, Petter Andreas; Oppermann, Steffen. (2011) Cluster tilting and complexity. International Mathematics Research Notices (IMRN)
    Academic article
  • Bergh, Petter Andreas. (2011) On the vanishing of cohomology in triangulated categories. Homology, Homotopy and Applications
    Academic article
  • Bergh, Petter Andreas; Oppermann, Steffen. (2011) Cohomological symmetry in triangulated categories. Journal of Algebra
    Academic article
  • Bergh, Petter Andreas; Erdmann, Karin. (2011) The representation dimension of Hecke algebras and symmetric groups. Advances in Mathematics
    Academic article
  • Bergh, Petter Andreas; Madsen, Dag. (2010) Hochschild homology and split pairs. Bulletin des Sciences Mathématiques
    Academic article
  • Bergh, Petter Andreas; Iyengar, Srikanth B.; Krause, Henning; Oppermann, Steffen. (2010) Dimensions of triangulated categories via Koszul objects. Mathematische Zeitschrift
    Academic article
  • Bergh, Petter Andreas; Solberg, Øyvind. (2010) Relative support varieties. Quarterly Journal of Mathematics
    Academic article
  • Bergh, Petter Andreas; Erdmann, Karin. (2009) Support and rank varieties for quantum complete intersections. Oberwolfach Reports
    Abstract
  • Bergh, Petter Andreas. (2009) Support via central ring actions. Oberwolfach Reports
    Abstract
  • Bergh, Petter Andreas; Erdmann, Karin. (2009) The Avrunin-Scott theorem for quantum complete intersections. Journal of Algebra
    Academic article
  • Bergh, Petter Andreas. (2009) Modules with reducible complexity, II. Communications in Algebra
    Academic article
  • Bergh, Petter Andreas. (2009) Orbit algebras and periodicity. Colloquium Mathematicum
    Academic article
  • Bergh, Petter Andreas; Madsen, Dag Oskar. (2009) Hochschild homology and global dimension. Bulletin of the London Mathematical Society
    Academic article
  • Bergh, Petter Andreas. (2009) On complexes of finite complete intersection dimension. Homology, Homotopy and Applications
    Academic article
  • Bergh, Petter Andreas. (2009) Ext-symmetry over quantum complete intersections. Archiv der Mathematik
    Academic article
  • Bergh, Petter Andreas; Oppermann, S. (2008) Cohomology of twisted tensor products. Journal of Algebra
    Academic article
  • Bergh, Petter Andreas; Erdmann, Karin. (2008) Homology and cohomology of quantum complete intersections. Algebra & Number Theory
    Academic article
  • Bergh, Petter Andreas. (2008) On the vanishing of (co)homology over local rings. Journal of Pure and Applied Algebra
    Academic article
  • Bergh, Petter Andreas. (2008) Representation dimension and finitely generated cohomology. Advances in Mathematics
    Academic article
  • Bergh, Petter Andreas; Oppermann, S. (2008) The representation dimension of quantum complete intersections. Journal of Algebra
    Academic article
  • Bergh, Petter Andreas. (2008) Twisted support varieties. Journal of Pure and Applied Algebra
    Academic article
  • Bergh, Petter Andreas. (2007) On the Hochschild (co)homology of quantum exterior algebras. Communications in Algebra
    Academic article
  • Bergh, Petter Andreas. (2007) On support varieties for modules over complete intersections. Proceedings of the American Mathematical Society
    Academic article
  • Bergh, Petter Andreas. (2007) Modules with reducible complexity. Journal of Algebra
    Academic article
  • Bergh, Petter Andreas. (2006) Complexity and periodicity. Colloquium Mathematicum
    Academic article

Report

  • Lyng, Reidar; Grønflaten, Lars Trovatten; Bergh, Petter Andreas; Moen, Øystein; Owren, Geir Asle; Pedersen, Eilif. (2021) Fremtidens teknologistudier (FTS), grupperapport: C - Programdrevet tilnærming. NTNU
    Report
  • Langfeldt, Marit Buset; Bergh, Petter Andreas. (2016) Triangulated Categories and Matrix Factorizations. NTNU
    Masters thesis
  • Bergh, Petter Andreas; Steen, Johan. (2014) Generators and representability in triangulated categories. Doktoravhandlinger ved NTNU (241)
    Doctoral dissertation
  • Bergh, Petter Andreas. (2006) Hochschild cohomology, complexity and support varieties. NTNU
    Doctoral dissertation

Teaching

Courses

  • MA8202 - Commutative Algebra
  • MA3202 - Galois Theory
  • MA3201 - Rings and Modules
  • TMA4150 - Algebra

Outreach

2010

  • Academic lecture
    Bergh, Petter Andreas. (2010) The shape of the AR-quiver of a selfinjective algebra. ICTP Advanced School and Conference on Homological and Geometrical Methods in Representation Theory 2010-01-18 - 2010-02-05
  • Academic lecture
    Bergh, Petter Andreas. (2010) Tate-Hochschild cohomology of Frobenius algebras. Algebra seminar, University of Aberdeen 2010-12-02 - 2010-12-02
  • Academic lecture
    Bergh, Petter Andreas. (2010) Modules with reducible complexity. Algebra seminar, University of Texas 2010-10-29 - 2010-10-29
  • Academic lecture
    Bergh, Petter Andreas. (2010) Symmetric growth in acyclic complexes. University of Bergen Norwegian Algebra Meeting 2010-11-11 - 2010-11-12
  • Academic lecture
    Bergh, Petter Andreas. (2010) Hochschild homology and truncated cycles. CIRM Hochschild cohomology, structure and applications 2010-06-07 - 2010-06-11
  • Academic lecture
    Bergh, Petter Andreas. (2010) The representation dimension of Hecke algebras. XIV International Conference on Representations of Algebras and Workshop 2010-08-06 - 2010-08-15
  • Academic lecture
    Bergh, Petter Andreas. (2010) The dimension of a triangulated category. Syracuse University Algebra seminar, Syracuse University 2010-05-05 - 2010-05-05

2009

  • Academic lecture
    Bergh, Petter Andreas. (2009) Cluster tilting and complexity. University of Oxford Representation theory seminar , Oxford 2009-10-15 -
  • Academic lecture
    Bergh, Petter Andreas. (2009) Support and rank varieties for quantum complete intersections. Mathematical Research Institute Oberwolfach Support varieties , Oberwolfach 2009-02-15 - 2009-02-21
  • Academic lecture
    Bergh, Petter Andreas. (2009) Complexity in representation theory. NTNU Homological and geometric methods in algebra , Trondheim 2009-08-10 - 2009-08-14
  • Academic lecture
    Bergh, Petter Andreas. (2009) Support via central ring actions. Mathematical Research Institute Oberwolfach Support varieties , Oberwolfach 2009-02-15 - 2009-02-21

2008

  • Academic lecture
    Bergh, Petter Andreas. (2008) Hochschild homology and global dimension. University of Oxford Representation theory seminar , Oxford 2008-10-16 -
  • Academic lecture
    Bergh, Petter Andreas. (2008) Quantum complete intersections. Commutative algebra: connections with algebraic topology and representation theory , University of Nebraska, Lincoln 2008-05-18 - 2008-05-22
  • Academic lecture
    Bergh, Petter Andreas. (2008) Representation dimension and central actions on triangulated categories. The representation dimension of Artin algebras , Universität Bielefeld 2008-05-01 - 2008-05-04
  • Academic lecture
    Bergh, Petter Andreas. (2008) Hochschild homology and global dimension. XIII International conference on representations of algebras , University of Sao Paulo 2008-07-30 - 2008-08-08
  • Academic lecture
    Bergh, Petter Andreas. (2008) Representation dimension and finitely generated cohomology. LieGrits Workshop , University of Oxford 2008-01-03 - 2008-01-09
  • Academic lecture
    Bergh, Petter Andreas. (2008) Relative support varieties and wild algebras. Interactions between representation theory and commutative algebra , Universitat de Barcelona 2008-09-25 - 2008-09-27

2007

  • Academic lecture
    Bergh, Petter Andreas. (2007) Support varieties over complete intersections. Support Varieties in Representation Theory , Universität Paderborn 2007-02-22 - 2007-02-23
  • Academic lecture
    Bergh, Petter Andreas. (2007) (Co)homology of quantum complete intersections. XII International Conference on Representations of Algebras , Torun 2007-08-15 - 2007-08-24
  • Academic lecture
    Bergh, Petter Andreas. (2007) Hochschild (co)homology of quantum complete intersections. Hochschild Cohomology of Algebras: Structure and Applications , Banff 2007-09-02 - 2007-09-07
  • Academic lecture
    Bergh, Petter Andreas. (2007) Asymptotisk homologi over komplette snitt. Nasjonalt algebramøte , Universitetet i Oslo 2007-11-01 - 2007-11-02
  • Academic lecture
    Bergh, Petter Andreas. (2007) (Co)homology of quantum complete intersections. BLOC-meeting , University of Leicester 2007-05-18 - 2007-05-19

2005

  • Academic lecture
    Bergh, Petter Andreas. (2005) Hochschild cohomology and support varieties. University of Oslo Nordic PhD-conference , Oslo 2005-06-03 - 2005-06-05

2004

  • Academic lecture
    Bergh, Petter Andreas. (2004) Betti numbers and periodicity. XI International Conference on Representations of Algebras , Morelia 2004-08-16 - 2004-08-20

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