Petter Andreas Bergh
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
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;
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
Outreach
2010
-
Academic lectureBergh, 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 lectureBergh, Petter Andreas. (2010) Tate-Hochschild cohomology of Frobenius algebras. Algebra seminar, University of Aberdeen 2010-12-02 - 2010-12-02
-
Academic lectureBergh, Petter Andreas. (2010) Modules with reducible complexity. Algebra seminar, University of Texas 2010-10-29 - 2010-10-29
-
Academic lectureBergh, Petter Andreas. (2010) Symmetric growth in acyclic complexes. University of Bergen Norwegian Algebra Meeting 2010-11-11 - 2010-11-12
-
Academic lectureBergh, Petter Andreas. (2010) Hochschild homology and truncated cycles. CIRM Hochschild cohomology, structure and applications 2010-06-07 - 2010-06-11
-
Academic lectureBergh, 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 lectureBergh, Petter Andreas. (2010) The dimension of a triangulated category. Syracuse University Algebra seminar, Syracuse University 2010-05-05 - 2010-05-05
2009
-
Academic lectureBergh, Petter Andreas. (2009) Cluster tilting and complexity. University of Oxford Representation theory seminar , Oxford 2009-10-15 -
-
Academic lectureBergh, 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 lectureBergh, Petter Andreas. (2009) Complexity in representation theory. NTNU Homological and geometric methods in algebra , Trondheim 2009-08-10 - 2009-08-14
-
Academic lectureBergh, Petter Andreas. (2009) Support via central ring actions. Mathematical Research Institute Oberwolfach Support varieties , Oberwolfach 2009-02-15 - 2009-02-21
2008
-
Academic lectureBergh, Petter Andreas. (2008) Hochschild homology and global dimension. University of Oxford Representation theory seminar , Oxford 2008-10-16 -
-
Academic lectureBergh, 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 lectureBergh, 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 lectureBergh, 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 lectureBergh, Petter Andreas. (2008) Representation dimension and finitely generated cohomology. LieGrits Workshop , University of Oxford 2008-01-03 - 2008-01-09
-
Academic lectureBergh, 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 lectureBergh, Petter Andreas. (2007) Support varieties over complete intersections. Support Varieties in Representation Theory , Universität Paderborn 2007-02-22 - 2007-02-23
-
Academic lectureBergh, Petter Andreas. (2007) (Co)homology of quantum complete intersections. XII International Conference on Representations of Algebras , Torun 2007-08-15 - 2007-08-24
-
Academic lectureBergh, 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 lectureBergh, Petter Andreas. (2007) Asymptotisk homologi over komplette snitt. Nasjonalt algebramøte , Universitetet i Oslo 2007-11-01 - 2007-11-02
-
Academic lectureBergh, Petter Andreas. (2007) (Co)homology of quantum complete intersections. BLOC-meeting , University of Leicester 2007-05-18 - 2007-05-19
2005
-
Academic lectureBergh, Petter Andreas. (2005) Hochschild cohomology and support varieties. University of Oslo Nordic PhD-conference , Oslo 2005-06-03 - 2005-06-05
2004
-
Academic lectureBergh, Petter Andreas. (2004) Betti numbers and periodicity. XI International Conference on Representations of Algebras , Morelia 2004-08-16 - 2004-08-20