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Petter Andreas Bergh

Petter Andreas Bergh

Professor
Department of Mathematical Sciences

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

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

2021

  • Bergh, Petter Andreas; Jorgensen, David A.; Moore, W. Frank. (2021) Totally Acyclic Approximations. Applied Categorical Structures. volum 29 (4).
    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. volum 225 (9).
    Academic article
  • Lyng, Reidar; Grønflaten, Lars Trovatten; Bergh, Petter Andreas; Moen, Øystein; Owren, Geir Asle; Pedersen, Eilif; Rachou, Mona; Sheikh, Bilal; Stokke, Bjørn Torger; Aastebøl, Halsten. (2021) Fremtidens teknologistudier (FTS), grupperapport: C - Programdrevet tilnærming. 2021.
    Report

2020

  • Bergh, Petter Andreas; Erdmann, Karin; Jorgensen, David A.. (2020) Modules of Constant Jordan Type over Quantum Complete Intersections. Documenta Mathematica. volum 25.
    Academic article
  • Bergh, Petter Andreas; Jorgensen, David A.; Moore, W. Frank. (2020) A converse to a construction of Eisenbud–Shamash. Journal of Commutative Algebra. volum 12 (4).
    Academic article
  • Bergh, Petter Andreas; Sandøy, Mads Hustad; Solberg, Øyvind. (2020) On support varieties and tensor products for finite dimensional algebras. Journal of Algebra. volum 547.
    Academic article
  • Bergh, Petter Andreas; Thompson, Peder. (2020) Matrix factorizations for self-orthogonal categories of modules. Journal of Algebra and its Applications.
    Academic article

2019

  • Bergh, Petter Andreas; Erdmann, Karin. (2019) Matrix factorizations for quantum complete intersections. Journal of Homotopy and Related Structures (JHRS). volum 14 (4).
    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. volum 17 (8).
    Academic article

2017

  • Bergh, Petter Andreas; Jorgensen, David Alan. (2017) A Generalized Dade?s Lemma for Local Rings. Algebras and Representation Theory. volum 21 (6).
    Academic article
  • Bergh, Petter Andreas; Madsen, Dag Oskar. (2017) Hochschild homology and trivial extension algebras. Proceedings of the American Mathematical Society. volum 145 (4).
    Academic article

2016

  • Arentz-Hansen, Emilie Bjørlo; Bergh, Petter Andreas; Thaule, Marius. (2016) The morphism axiom for n-angulated categories. Theory and Applications of Categories. volum 31.
    Academic article
  • Bergh, Petter Andreas; Jasso, Gustavo; Thaule, Marius. (2016) Higher n-angulations from local rings. Journal of the London Mathematical Society. volum 93 (1).
    Academic article
  • Bergh, Petter Andreas; Jorgensen, David A. (2016) Complete intersections and equivalences with categories of matrix factorizations. Homology, Homotopy and Applications. volum 18 (2).
    Academic article

2015

  • Bergh, Petter Andreas; Oppermann, Steffen; Jorgensen, David A. (2015) The Gorenstein defect category. Quarterly Journal of Mathematics. volum 66 (2).
    Academic article

2014

  • Bergh, Petter Andreas. (2014) On the existence of cluster tilting objects in triangulated categories. Journal of Algebra. volum 417.
    Academic article
  • Bergh, Petter Andreas; Celikbas, Olgur; Jorgensen, David A. (2014) Homological algebra modulo exact zero-divisors. Kyoto Journal of Mathematics. volum 54 (4).
    Academic article
  • Bergh, Petter Andreas; Jorgensen, David Alan. (2014) On growth in minimal totally acyclic complexes. Journal of Commutative Algebra. volum 6 (1).
    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. volum 46 (2).
    Academic article
  • Bergh, Petter Andreas; Oppermann, Steffen; Jorgensen, David Alan. (2014) The gorenstein defect category. Quarterly Journal of Mathematics. volum 66 (2).
    Academic article
  • Bergh, Petter Andreas; Thaule, Marius. (2014) The Grothendieck group of an n-angulated category. Journal of Pure and Applied Algebra. volum 218 (2).
    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. volum 46 (1).
    Academic article

2013

  • Bergh, Petter Andreas. (2013) On the vanishing of homology with modules of finite length. Mathematica Scandinavica. volum 112 (1).
    Academic article
  • Bergh, Petter Andreas; Jorgensen, David A. (2013) Tate-Hochschild homology and cohomology of Frobenius algebras. Journal of Noncommutative Geometry. volum 7 (4).
    Academic article
  • Bergh, Petter Andreas; Thaule, Marius. (2013) The axioms for n-angulated categories. Algebraic and Geometric Topology. volum 13 (4).
    Academic article

2012

  • Bergh, Petter Andreas; Han, Y; Madsen, Dag Oskar. (2012) HOCHSCHILD HOMOLOGY AND TRUNCATED CYCLES. Proceedings of the American Mathematical Society. volum 140 (4).
    Academic article

2011

  • Bergh, Petter Andreas. (2011) On the vanishing of cohomology in triangulated categories. Homology, Homotopy and Applications. volum 13 (2).
    Academic article
  • Bergh, Petter Andreas; Erdmann, Karin. (2011) The representation dimension of Hecke algebras and symmetric groups. Advances in Mathematics. volum 228 (4).
    Academic article
  • Bergh, Petter Andreas; Erdmann, Karin. (2011) The stable Auslander-Reiten quiver of a quantum complete intersection. Bulletin of the London Mathematical Society. volum 43.
    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. volum 215 (3).
    Academic article
  • Bergh, Petter Andreas; Oppermann, Steffen. (2011) Cluster tilting and complexity. International mathematics research notices.
    Academic article
  • Bergh, Petter Andreas; Oppermann, Steffen. (2011) Cohomological symmetry in triangulated categories. Journal of Algebra. volum 347 (1).
    Academic article

2010

  • Bergh, Petter Andreas; Iyengar, Srikanth B.; Krause, Henning; Oppermann, Steffen. (2010) Dimensions of triangulated categories via Koszul objects. Mathematische Zeitschrift. volum 265 (4).
    Academic article
  • Bergh, Petter Andreas; Madsen, Dag. (2010) Hochschild homology and split pairs. Bulletin des Sciences Mathématiques. volum 134 (7).
    Academic article
  • Bergh, Petter Andreas; Solberg, Øyvind. (2010) Relative support varieties. Quarterly Journal of Mathematics. volum 61 (2).
    Academic article

2009

  • Bergh, Petter Andreas. (2009) Ext-symmetry over quantum complete intersections. Archiv der Mathematik. volum 92 (6).
    Academic article
  • Bergh, Petter Andreas. (2009) Modules with reducible complexity, II. Communications in Algebra. volum 37 (6).
    Academic article
  • Bergh, Petter Andreas. (2009) On complexes of finite complete intersection dimension. Homology, Homotopy and Applications. volum 11 (2).
    Academic article
  • Bergh, Petter Andreas. (2009) Orbit algebras and periodicity. Colloquium Mathematicum. volum 114 (2).
    Academic article
  • Bergh, Petter Andreas. (2009) Support via central ring actions. Oberwolfach Reports. volum 6 (1).
    Summary/Abstract
  • Bergh, Petter Andreas; Erdmann, Karin. (2009) Support and rank varieties for quantum complete intersections. Oberwolfach Reports. volum 6 (1).
    Summary/Abstract
  • Bergh, Petter Andreas; Erdmann, Karin. (2009) The Avrunin-Scott theorem for quantum complete intersections. Journal of Algebra. volum 322 (2).
    Academic article
  • Bergh, Petter Andreas; Madsen, Dag Oskar. (2009) Hochschild homology and global dimension. Bulletin of the London Mathematical Society. volum 41.
    Academic article

2008

  • Bergh, Petter Andreas; Oppermann, S. (2008) The representation dimension of quantum complete intersections. Journal of Algebra. volum 320.
    Academic article
  • Bergh, Petter Andreas. (2008) On the vanishing of (co)homology over local rings. Journal of Pure and Applied Algebra. volum 212 (1).
    Academic article
  • Bergh, Petter Andreas. (2008) Twisted support varieties. Journal of Pure and Applied Algebra. volum 212.
    Academic article
  • Bergh, Petter Andreas; Erdmann, Karin. (2008) Homology and cohomology of quantum complete intersections. Algebra & Number Theory. volum 2 (5).
    Academic article
  • Bergh, Petter Andreas; Oppermann, S. (2008) Cohomology of twisted tensor products. Journal of Algebra. volum 320.
    Academic article
  • Bergh, Petter Andreas. (2008) Representation dimension and finitely generated cohomology. Advances in Mathematics. volum 219.
    Academic article

2007

  • Bergh, Petter Andreas. (2007) Modules with reducible complexity. Journal of Algebra. volum 310 (1).
    Academic article
  • Bergh, Petter Andreas. (2007) On support varieties for modules over complete intersections. Proceedings of the American Mathematical Society. volum 135 (12).
    Academic article
  • Bergh, Petter Andreas. (2007) On the Hochschild (co)homology of quantum exterior algebras. Communications in Algebra. volum 35 (11).
    Academic article

2006

  • Bergh, Petter Andreas. (2006) Complexity and periodicity. Colloquium Mathematicum. volum 104 (2).
    Academic article
  • Bergh, Petter Andreas. (2006) Hochschild cohomology, complexity and support varieties. 2006. ISBN 82-471-8250-5.
    PhD thesis

Scientific articles

  • Bergh, Petter Andreas; Jorgensen, David A.; Moore, W. Frank. (2021) Totally Acyclic Approximations. Applied Categorical Structures. volum 29 (4).
    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. volum 225 (9).
    Academic article
  • Bergh, Petter Andreas; Erdmann, Karin; Jorgensen, David A.. (2020) Modules of Constant Jordan Type over Quantum Complete Intersections. Documenta Mathematica. volum 25.
    Academic article
  • Bergh, Petter Andreas; Jorgensen, David A.; Moore, W. Frank. (2020) A converse to a construction of Eisenbud–Shamash. Journal of Commutative Algebra. volum 12 (4).
    Academic article
  • Bergh, Petter Andreas; Sandøy, Mads Hustad; Solberg, Øyvind. (2020) On support varieties and tensor products for finite dimensional algebras. Journal of Algebra. volum 547.
    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. (2019) Matrix factorizations for quantum complete intersections. Journal of Homotopy and Related Structures (JHRS). volum 14 (4).
    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. volum 17 (8).
    Academic article
  • Bergh, Petter Andreas; Jorgensen, David Alan. (2017) A Generalized Dade?s Lemma for Local Rings. Algebras and Representation Theory. volum 21 (6).
    Academic article
  • Bergh, Petter Andreas; Madsen, Dag Oskar. (2017) Hochschild homology and trivial extension algebras. Proceedings of the American Mathematical Society. volum 145 (4).
    Academic article
  • Arentz-Hansen, Emilie Bjørlo; Bergh, Petter Andreas; Thaule, Marius. (2016) The morphism axiom for n-angulated categories. Theory and Applications of Categories. volum 31.
    Academic article
  • Bergh, Petter Andreas; Jasso, Gustavo; Thaule, Marius. (2016) Higher n-angulations from local rings. Journal of the London Mathematical Society. volum 93 (1).
    Academic article
  • Bergh, Petter Andreas; Jorgensen, David A. (2016) Complete intersections and equivalences with categories of matrix factorizations. Homology, Homotopy and Applications. volum 18 (2).
    Academic article
  • Bergh, Petter Andreas; Oppermann, Steffen; Jorgensen, David A. (2015) The Gorenstein defect category. Quarterly Journal of Mathematics. volum 66 (2).
    Academic article
  • Bergh, Petter Andreas. (2014) On the existence of cluster tilting objects in triangulated categories. Journal of Algebra. volum 417.
    Academic article
  • Bergh, Petter Andreas; Celikbas, Olgur; Jorgensen, David A. (2014) Homological algebra modulo exact zero-divisors. Kyoto Journal of Mathematics. volum 54 (4).
    Academic article
  • Bergh, Petter Andreas; Jorgensen, David Alan. (2014) On growth in minimal totally acyclic complexes. Journal of Commutative Algebra. volum 6 (1).
    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. volum 46 (2).
    Academic article
  • Bergh, Petter Andreas; Oppermann, Steffen; Jorgensen, David Alan. (2014) The gorenstein defect category. Quarterly Journal of Mathematics. volum 66 (2).
    Academic article
  • Bergh, Petter Andreas; Thaule, Marius. (2014) The Grothendieck group of an n-angulated category. Journal of Pure and Applied Algebra. volum 218 (2).
    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. volum 46 (1).
    Academic article
  • Bergh, Petter Andreas. (2013) On the vanishing of homology with modules of finite length. Mathematica Scandinavica. volum 112 (1).
    Academic article
  • Bergh, Petter Andreas; Jorgensen, David A. (2013) Tate-Hochschild homology and cohomology of Frobenius algebras. Journal of Noncommutative Geometry. volum 7 (4).
    Academic article
  • Bergh, Petter Andreas; Thaule, Marius. (2013) The axioms for n-angulated categories. Algebraic and Geometric Topology. volum 13 (4).
    Academic article
  • Bergh, Petter Andreas; Han, Y; Madsen, Dag Oskar. (2012) HOCHSCHILD HOMOLOGY AND TRUNCATED CYCLES. Proceedings of the American Mathematical Society. volum 140 (4).
    Academic article
  • Bergh, Petter Andreas. (2011) On the vanishing of cohomology in triangulated categories. Homology, Homotopy and Applications. volum 13 (2).
    Academic article
  • Bergh, Petter Andreas; Erdmann, Karin. (2011) The representation dimension of Hecke algebras and symmetric groups. Advances in Mathematics. volum 228 (4).
    Academic article
  • Bergh, Petter Andreas; Erdmann, Karin. (2011) The stable Auslander-Reiten quiver of a quantum complete intersection. Bulletin of the London Mathematical Society. volum 43.
    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. volum 215 (3).
    Academic article
  • Bergh, Petter Andreas; Oppermann, Steffen. (2011) Cluster tilting and complexity. International mathematics research notices.
    Academic article
  • Bergh, Petter Andreas; Oppermann, Steffen. (2011) Cohomological symmetry in triangulated categories. Journal of Algebra. volum 347 (1).
    Academic article
  • Bergh, Petter Andreas; Iyengar, Srikanth B.; Krause, Henning; Oppermann, Steffen. (2010) Dimensions of triangulated categories via Koszul objects. Mathematische Zeitschrift. volum 265 (4).
    Academic article
  • Bergh, Petter Andreas; Madsen, Dag. (2010) Hochschild homology and split pairs. Bulletin des Sciences Mathématiques. volum 134 (7).
    Academic article
  • Bergh, Petter Andreas; Solberg, Øyvind. (2010) Relative support varieties. Quarterly Journal of Mathematics. volum 61 (2).
    Academic article
  • Bergh, Petter Andreas. (2009) Ext-symmetry over quantum complete intersections. Archiv der Mathematik. volum 92 (6).
    Academic article
  • Bergh, Petter Andreas. (2009) Modules with reducible complexity, II. Communications in Algebra. volum 37 (6).
    Academic article
  • Bergh, Petter Andreas. (2009) On complexes of finite complete intersection dimension. Homology, Homotopy and Applications. volum 11 (2).
    Academic article
  • Bergh, Petter Andreas. (2009) Orbit algebras and periodicity. Colloquium Mathematicum. volum 114 (2).
    Academic article
  • Bergh, Petter Andreas; Erdmann, Karin. (2009) The Avrunin-Scott theorem for quantum complete intersections. Journal of Algebra. volum 322 (2).
    Academic article
  • Bergh, Petter Andreas; Madsen, Dag Oskar. (2009) Hochschild homology and global dimension. Bulletin of the London Mathematical Society. volum 41.
    Academic article
  • Bergh, Petter Andreas; Oppermann, S. (2008) The representation dimension of quantum complete intersections. Journal of Algebra. volum 320.
    Academic article
  • Bergh, Petter Andreas. (2008) On the vanishing of (co)homology over local rings. Journal of Pure and Applied Algebra. volum 212 (1).
    Academic article
  • Bergh, Petter Andreas. (2008) Twisted support varieties. Journal of Pure and Applied Algebra. volum 212.
    Academic article
  • Bergh, Petter Andreas; Erdmann, Karin. (2008) Homology and cohomology of quantum complete intersections. Algebra & Number Theory. volum 2 (5).
    Academic article
  • Bergh, Petter Andreas; Oppermann, S. (2008) Cohomology of twisted tensor products. Journal of Algebra. volum 320.
    Academic article
  • Bergh, Petter Andreas. (2008) Representation dimension and finitely generated cohomology. Advances in Mathematics. volum 219.
    Academic article
  • Bergh, Petter Andreas. (2007) Modules with reducible complexity. Journal of Algebra. volum 310 (1).
    Academic article
  • Bergh, Petter Andreas. (2007) On support varieties for modules over complete intersections. Proceedings of the American Mathematical Society. volum 135 (12).
    Academic article
  • Bergh, Petter Andreas. (2007) On the Hochschild (co)homology of quantum exterior algebras. Communications in Algebra. volum 35 (11).
    Academic article
  • Bergh, Petter Andreas. (2006) Complexity and periodicity. Colloquium Mathematicum. volum 104 (2).
    Academic article

Journal publications

  • Bergh, Petter Andreas. (2009) Support via central ring actions. Oberwolfach Reports. volum 6 (1).
    Summary/Abstract
  • Bergh, Petter Andreas; Erdmann, Karin. (2009) Support and rank varieties for quantum complete intersections. Oberwolfach Reports. volum 6 (1).
    Summary/Abstract

Report

  • Lyng, Reidar; Grønflaten, Lars Trovatten; Bergh, Petter Andreas; Moen, Øystein; Owren, Geir Asle; Pedersen, Eilif; Rachou, Mona; Sheikh, Bilal; Stokke, Bjørn Torger; Aastebøl, Halsten. (2021) Fremtidens teknologistudier (FTS), grupperapport: C - Programdrevet tilnærming. 2021.
    Report
  • Bergh, Petter Andreas. (2006) Hochschild cohomology, complexity and support varieties. 2006. ISBN 82-471-8250-5.
    PhD thesis

Teaching

Courses

  • MA6301 - Number Theory
  • MA6201 - Linear Algebra and Geometry
  • MA8202 - Commutative Algebra
  • MA3202 - Galois Theory
  • MA1201 - Linear Algebra and Geometry
  • MA1301 - Number Theory

Media

2010

  • Academic lecture
    Bergh, Petter Andreas. (2010) Hochschild homology and truncated cycles. Hochschild cohomology, structure and applications . CIRM; 2010-06-07 - 2010-06-11.
  • 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. Norwegian Algebra Meeting . University of Bergen; 2010-11-11 - 2010-11-12.
  • 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) The dimension of a triangulated category. Algebra seminar, Syracuse University . Syracuse University; 2010-05-05 - 2010-05-05.
  • 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 shape of the AR-quiver of a selfinjective algebra. Advanced School and Conference on Homological and Geometrical Methods in Representation Theory . ICTP; 2010-01-18 - 2010-02-05.

2009

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

2008

  • Academic lecture
    Bergh, Petter Andreas. (2008) Hochschild homology and global dimension. Representation theory seminar . University of Oxford; Oxford. 2008-10-16.
  • 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) 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) Relative support varieties and wild algebras. Interactions between representation theory and commutative algebra ; Universitat de Barcelona. 2008-09-25 - 2008-09-27.
  • 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) Representation dimension and finitely generated cohomology. LieGrits Workshop ; University of Oxford. 2008-01-03 - 2008-01-09.

2007

  • Academic lecture
    Bergh, Petter Andreas. (2007) (Co)homology of quantum complete intersections. BLOC-meeting ; University of Leicester. 2007-05-18 - 2007-05-19.
  • 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) Asymptotisk homologi over komplette snitt. Nasjonalt algebramøte ; Universitetet i Oslo. 2007-11-01 - 2007-11-02.
  • 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) Support varieties over complete intersections. Support Varieties in Representation Theory ; Universität Paderborn. 2007-02-22 - 2007-02-23.

2005

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