Hopp til hovedinnhold

Sigbjørn Hervik

Professor

Det teknisk- naturvitenskapelige fakultet

Institutt for matematikk og fysikk
KE C-314
Publications
  • Vitenskapelige publikasjoner
    • Normann, Ben David; Ricciardone, Angelo; Hervik, Sigbjørn; Thorsrud, Mikjel

      (2021)

      A study of inhomogeneous massless scalar gauge fields in cosmology.

      International Journal of Modern Physics, Conference Series

      ISSN 2010-1945.

    • Hervik, Sigbjørn; Ortaggio, Marcello

      (2020)

      Universal Black Holes.

      Journal of High Energy Physics (JHEP)

      ISSN 1126-6708.

      DOI: 10.1007/JHEP02(2020)047

    • Hervik, Sigbjørn; Ortaggio, Marcello

      (2020)

      On Universal Black Holes.

      Acta Physica Polonica B, Proceedings Supplement

      ISSN 1899-2358.

      Volum 13.

      Hefte 2.

      s.291-295.

      DOI: 10.5506/APhysPolBSupp.13.291

    • Hervik, Sigbjørn; Ortaggio, Marcello

      (2020)

      Universal p-form black holes in generalized theories of gravity.

      European Physical Journal C

      ISSN 1434-6044.

      Volum 80.

      DOI: 10.1140/epjc/s10052-020-08571-x

    • Barausse, Enrico; Berti, Emanuele; Hertog, Thomas; Hughes, Scott A.; Jetzer, Philippe; Pani, Paolo; Hervik, Sigbjørn; Kolesova, Helena; Marcoccia, Paolo; Nardini, Germano; Nielsen, Alex Bentley; Sotiriou, Thomas P.; Tamanini, Nicola; Witek, Helvi; Yagi, Kent; Yunes, Nicolás; Abdelsahin, T.; Achucarro, A.; van Aelst, K.; Afshordi, N.; Akcay, S.; Annulli, L.; Arun, K.G.; Ayuso, I.; Baibhav, V.; Baker, T.; Bantilan, H.; Barreiro, T.; Barrera-Hinojosa, C.; Bartolo, N.; Baumann, D.; Belgacem, E.; Bellini, E.; Bellomo, N.; Ben-Dayan, I.; Bena, I.; Benkel, R.; Bergshoefs, E.; Bernard, L.; Bernuzzi, S.; Bertacca, D.; Besancon, M.; Beutler, F.; Beyer, F.; Bhagwat, S.; Bicak, J.; Biondini, S.; Bize, S.; Blas, D.; Boehmer, C.

      (2020)

      Prospects for fundamental physics with LISA.

      General Relativity and Gravitation

      ISSN 0001-7701.

      Volum 52.

      DOI: 10.1007/s10714-020-02691-1

    • Normann, Ben David; Hervik, Sigbjørn

      (2020)

      Collins in Wonderland.

      Classical and Quantum Gravity

      ISSN 0264-9381.

      Volum 37.

      DOI: 10.1088/1361-6382/ab8be7

    • Normann, Ben David; Hervik, Sigbjørn

      (2020)

      Approaching Wonderland.

      Classical and Quantum Gravity

      ISSN 0264-9381.

      Volum 37.

      Hefte 8.

      s.1-47.

      DOI: 10.1088/1361-6382/ab719b

    • Helleland, Christer; Hervik, Sigbjørn

      (2019)

      Real GIT with applications to compatible representations and Wick-rotations.

      Journal of Geometry and Physics

      ISSN 0393-0440.

      Volum 142.

      s.92-110.

      DOI: 10.1016/j.geomphys.2019.03.007

    • McNutt, David Duncan; Wylleman, Lode; Coley, Alan; Hervik, Sigbjørn

      (2019)

      Locally Boost Isotropic Spacetimes and the Type ${\bf D}^k$ Condition.

      arXiv.org

      ISSN 2331-8422.

    • Hervik, Sigbjørn; McNutt, David Duncan

      (2019)

      Locally Homogeneous Kundt Triples and CSI Metrics.

      Classical and Quantum Gravity

      ISSN 0264-9381.

      Volum 36.

      Hefte 18.

      DOI: 10.1088/1361-6382/ab3296

    • Hervik, Sigbjørn; Malek, Tomas

      (2018)

      Universal Walker metrics.

      Physica Scripta

      ISSN 0031-8949.

      Volum 93.

      Hefte 8.

      s.1-12.

      DOI: 10.1088/1402-4896/aace9c

    • Hervik, Sigbjørn

      (2018)

      On a new class of infinitesimal group actions on pseudo-Riemannian manifolds.

      arXiv.org

      ISSN 2331-8422.

    • Normann, Ben David; Hervik, Sigbjørn; Ricciardone, Angelo; Thorsrud, Mikjel

      (2018)

      Bianchi cosmologies with p-form gauge fields.

      Classical and Quantum Gravity

      ISSN 0264-9381.

      Volum 35.

      Hefte 9.

      DOI: 10.1088/1361-6382/aab3a7

    • Hervik, Sigbjørn; Ortaggio, Marcello; Pravda, Vojtech

      (2018)

      Universal electromagnetic fields.

      Classical and Quantum Gravity

      ISSN 0264-9381.

      Volum 35.

      Hefte 17.

      s.1-19.

      DOI: 10.1088/1361-6382/aad13

    • Helleland, Christer; Hervik, Sigbjørn

      (2017)

      Wick rotations and real GIT.

      Journal of Geometry and Physics

      ISSN 0393-0440.

      Volum 123.

      s.343-361.

      DOI: 10.1016/j.geomphys.2017.09.009

    • Helleland, Christer; Hervik, Sigbjørn

      (2017)

      A Wick-rotatable metric is purely electric.

      Journal of Geometry and Physics

      ISSN 0393-0440.

      Volum 123.

      s.424-429.

      DOI: 10.1016/j.geomphys.2017.09.015

    • Hervik, Sigbjørn; Pravda, Vojtech; Pravdova, Alena

      (2017)

      Universal spacetimes in four dimensions.

      Journal of High Energy Physics (JHEP)

      ISSN 1126-6708.

      Volum 2017.

      Hefte 10.

      DOI: 10.1007/JHEP10(2017)028

    • Gregersen, Øyvind Weiby; Kløkstad, Geir Øivind; Hervik, Sigbjørn; Plesser, Hans Ekkehard; Pettersen, Ivar

      (2017)

      Some factors affecting the grades of technology students.

      Nordic Journal of STEM Education

      ISSN 2535-4574.

      Volum 1.

      Hefte 1.

      s.167-173.

    • Shogin, Dmitry; Hervik, Sigbjørn

      (2015)

      Dynamics of tilted Bianchi models of types III, IV, V in presence of diffusion.

      Classical and Quantum Gravity

      ISSN 0264-9381.

      Volum 32.

      Hefte 5.

      DOI: 10.1088/0264-9381/32/5/055008

    • Hervik, Sigbjørn; Haarr, Anders; Yamamoto, Kei

      (2015)

      I-degenerate pseudo-Riemannian metrics.

      Journal of Geometry and Physics

      ISSN 0393-0440.

      Volum 98.

      s.384-399.

      DOI: 10.1016/j.geomphys.2015.08.019

    • Hervik, Sigbjørn; Pravda, Vojtech; Pravdova, Alena

      (2015)

      Type III and II universal spacetimes.

      Journal of Physics: Conference Series (JPCS)

      ISSN 1742-6588.

      Volum 600:012066.

      DOI: 10.1088/1742-6596/600/1/012066

    • Hervik, Sigbjørn; Pravda, Vojtech; Pravdova, Alena

      (2015)

      Type N universal spacetime.

      Journal of Physics: Conference Series (JPCS)

      ISSN 1742-6588.

      Volum 600.

      Hefte 1.

      DOI: 10.1088/1742-6596/600/1/012065

    • Hervik, Sigbjørn; Malek, Tomas; Pravda, Vojtech; Pravdova, Alena

      (2015)

      Type II universal spacetimes.

      Classical and Quantum Gravity

      ISSN 0264-9381.

      Volum 32.

      DOI: 10.1088/0264-9381/32/24/245012

    • Shogin, Dmitry; Amundsen, Per Amund; Hervik, Sigbjørn

      (2015)

      On the viability of the truncated Israel–Stewart theory in cosmology.

      Classical and Quantum Gravity

      ISSN 0264-9381.

      Volum 32.

      Hefte 19.

      s.1-14.

      DOI: 10.1088/0264-9381/32/19/195012

    • Hervik, Sigbjørn; Ortaggio, Marcello; Wylleman, Lode

      (2014)

      Electric and magnetic Weyl tensors in higher dimensions.

      Springer Proceedings in Physics

      ISSN 0930-8989.

      Volum 157.

      s.287-290.

      DOI: 10.1007/978-3-319-06761-2_38

    • Hervik, Sigbjørn; Pravda, Vojtech; Pravdova, Alena

      (2014)

      Type III and N universal spacetimes.

      Classical and Quantum Gravity

      ISSN 0264-9381.

      Volum 31.

      Hefte 21.

      DOI: 10.1088/0264-9381/31/21/215005

    • Coley, Alan; Hervik, Sigbjørn; McNutt, David; Musoke, Nathan; Brooks, Dario

      (2014)

      Neutral signature Walker-VSI metrics.

      Classical and Quantum Gravity

      ISSN 0264-9381.

      Volum 31.

      Hefte 3.

      DOI: 10.1088/0264-9381/31/3/035015

    • Shogin, Dmitry; Hervik, Sigbjørn

      (2014)

      The late-time behaviour of tilted Bianchi type VIII universes in presence of diffusion.

      Classical and Quantum Gravity

      ISSN 0264-9381.

      Volum 31.

      Hefte 13.

      DOI: 10.1088/0264-9381/31/13/135006

    • Hervik, Sigbjørn; Ortaggio, Marcello; Wylleman, Lode

      (2013)

      Minimal tensors and purely electric or magnetic spacetimes of arbitrary dimension.

      Classical and Quantum Gravity

      ISSN 0264-9381.

      Volum 30.

      Hefte 16.

      DOI: 10.1088/0264-9381/30/16/165014

    • Gurses, Metin; Hervik, Sigbjørn; Sisman, Tahsin; Tekin, Bayram

      (2013)

      Anti–de Sitter–wave solutions of higher derivative Theories.

      Physical Review Letters

      ISSN 0031-9007.

      Volum 111.

      Hefte 10.

      DOI: 10.1103/PhysRevLett.111.101101

    • Shogin, Dmitry; Hervik, Sigbjørn

      (2013)

      Evolution of a simple inhomogeneous anisotropic cosmological model with diffusion.

      Journal of Cosmology and Astroparticle Physics (JCAP)

      ISSN 1475-7516.

      Volum 2013.

      Hefte 10.

      DOI: 10.1088/1475-7516/2013/10/005

    • Coley, Alan; Hervik, Sigbjørn; Ortaggio, Marcello; Wylleman, Lode

      (2012)

      Refinements of the Weyl tensor classification in five dimensions.

      Classical and Quantum Gravity

      ISSN 0264-9381.

      Volum 29.

      Hefte 15.

      DOI: 10.1088/0264-9381/29/15/155016

    • Hervik, Sigbjørn

      (2012)

      Pseudo-Riemannian VSI spaces II.

      Classical and Quantum Gravity

      ISSN 0264-9381.

      Volum 29.

      Hefte 9.

      DOI: 10.1088/0264-9381/29/9/095011

    • Alcolado, A; MacDougall, A; Coley, Alan; Hervik, Sigbjørn

      (2012)

      4D neutral signature VSI and CSI spaces.

      Journal of Geometry and Physics

      ISSN 0393-0440.

      Volum 62.

      Hefte 3.

      s.594-603.

      DOI: 10.1016/j.geomphys.2011.04.012

    • Thorsrud, Mikjel; Mota, David ; Hervik, Sigbjørn

      (2012)

      Cosmology of a scalar field coupled to matter and an isotropy-violating Maxwell field.

      Journal of High Energy Physics (JHEP)

      ISSN 1126-6708.

      Hefte 10.

      DOI: 10.1007/JHEP10(2012)066

    • Hervik, Sigbjørn; Mota, David ; Thorsrud, Mikjel

      (2011)

      Inflation with stable anisotropic hair: is it cosmologically viable?.

      Journal of High Energy Physics (JHEP)

      ISSN 1126-6708.

      Hefte 11.

      DOI: 10.1007/JHEP11(2011)146

    • Coley, Alan; Hervik, Sigbjørn

      (2011)

      Universality and Constant Scalar Curvature Invariants.

      ISRN Geometry

      ISSN 2090-6307.

      DOI: 10.5402/2011/248615

    • Coley, Alan; Hervik, Sigbjørn

      (2011)

      Discriminating the Weyl type in higher dimensions using scalar curvature invariants.

      General Relativity and Gravitation

      ISSN 0001-7701.

      Volum 43.

      Hefte 8.

      s.2199-2207.

      DOI: 10.1007/s10714-011-1174-x

    • Hervik, Sigbjørn; Coley, Alan

      (2011)

      On the algebraic classification of pseudo-Riemannian spaces.

      International Journal of Geometric Methods in Modern Physics (IJGMMP)

      ISSN 0219-8878.

      Volum 8.

      Hefte 8.

      s.1679-1685.

      DOI: 10.1142/S0219887811005932

    • Coley, Alan; Hervik, Sigbjørn; Durkee, Mark; Godazgar, Mahdi

      (2011)

      Algebraic classification of five-dimensional spacetimes using scalar invariants.

      Classical and Quantum Gravity

      ISSN 0264-9381.

      Volum 28.

      Hefte 15.

      DOI: 10.1088/0264-9381/28/15/155016

    • Hervik, Sigbjørn

      (2011)

      A spacetime not characterized by its invariants is of aligned type II.

      Classical and Quantum Gravity

      ISSN 0264-9381.

      Volum 28.

      Hefte 21.

      DOI: 10.1088/0264-9381/28/21/215009

    • Hervik, Sigbjørn

      (2011)

      All metrics have curvature tensors characterized by its invariants as a limit: the epsilon-property.

      Classical and Quantum Gravity

      ISSN 0264-9381.

      Volum 28.

      Hefte 15.

      DOI: 10.1088/0264-9381/28/15/157001

    • Hervik, Sigbjørn; Coley, Alan

      (2011)

      Pseudo-Riemannian VSI spaces.

      Classical and Quantum Gravity

      ISSN 0264-9381.

      Volum 28.

      Hefte 1.

      DOI: 10.1088/0264-9381/28/1/015008

    • Coley, Alan; Hervik, Sigbjørn

      (2010)

      Higher dimensional bivectors and classification of the Weyl operator.

      Classical and Quantum Gravity

      ISSN 0264-9381.

      Volum 27.

      Hefte 1.

      DOI: 10.1088/0264-9381/27/1/015002

    • Barrow, John; Hervik, Sigbjørn

      (2010)

      Simple types of anisotropic inflation.

      Physical Review D. Particles and fields

      ISSN 0556-2821.

      Volum 81.

      Hefte 2.

      DOI: 10.1103/PhysRevD.81.023513

    • Hervik, Sigbjørn; Coley, Alan

      (2010)

      Curvature operators and scalar curvature invariants.

      Classical and Quantum Gravity

      ISSN 0264-9381.

      Volum 27.

      Hefte 9.

      DOI: 10.1088/0264-9381/27/9/095014

    • Coley, Alan; Hervik, Sigbjørn; Pelavas, Nicos

      (2010)

      Lorentzian manifolds and scalar curvature invariants.

      Classical and Quantum Gravity

      ISSN 0264-9381.

      Volum 27.

      Hefte 10.

      DOI: 10.1088/0264-9381/27/10/102001

    • Hervik, Sigbjørn; Lim, Woei Chet; Sandin, Patrik; Uggla, Claes

      (2010)

      Future asymptotics of tilted Bianchi type II cosmologies.

      Classical and Quantum Gravity

      ISSN 0264-9381.

      Volum 27.

      Hefte 18.

      DOI: 10.1088/0264-9381/27/18/185006

    • Coley, A.; Hervik, Sigbjørn

      (2009)

      Note on the invariant classification of vacuum type D spacetimes.

      Classical and Quantum Gravity

      ISSN 0264-9381.

      Volum 26.

      Hefte 24.

      DOI: 10.1088/0264-9381/26/24/247001

    • Coley, Alan; Hervik, Sigbjørn; Pelavas, Nicos

      (2009)

      Lorentzian spacetimes with constant curvature invariants in four dimensions.

      Classical and Quantum Gravity

      ISSN 0264-9381.

      Volum 26.

      Hefte 12.

      DOI: 10.1088/0264-9381/26/12/125011

    • Coley, Alan; Hervik, Sigbjørn; Papadopoulos, G.; Pelavas, Nicos

      (2009)

      Kundt spacetimes.

      Classical and Quantum Gravity

      ISSN 0264-9381.

      Volum 26.

      Hefte 10.

      DOI: 10.1088/0264-9381/26/10/105016

    • Coley, Alan; Hervik, Sigbjørn; Pelavas, Nicos

      (2009)

      Spacetimes characterized by their scalar curvature invariants.

      Classical and Quantum Gravity

      ISSN 0264-9381.

      Volum 26.

      Hefte 2.

      DOI: 10.1088/0264-9381/26/2/025013

    • Coley, Alan; Fuster, Andrea; Hervik, Sigbjørn

      (2009)

      SUPERGRAVITY SOLUTIONS WITH CONSTANT SCALAR INVARIANTS.

      International Journal of Modern Physics A

      ISSN 0217-751X.

      Volum 24.

      Hefte 6.

      s.1119-1133.

    • Coley, Alan; Hervik, Sigbjørn; Lim, Woei Chet; MacCallum, Malcolm

      (2009)

      Properties of kinematic singularities.

      Classical and Quantum Gravity

      ISSN 0264-9381.

      Volum 26.

      Hefte 21.

      DOI: 10.1088/0264-9381/26/21/215008

    • Brannlund, Johan; Coley, Alan; Hervik, Sigbjørn

      (2009)

      Holonomy, decomposability, and relativity(1).

      Canadian journal of physics (Print)

      ISSN 0008-4204.

      Volum 87.

      Hefte 3.

      s.241-243.

      DOI: 10.1139/P08-092

    • Coley, Alan; Hervik, Sigbjørn

      (2008)

      A note on tilted Bianchi type VIh models: the type III bifurcation.

      Classical and Quantum Gravity

      ISSN 0264-9381.

      Volum 25.

      Hefte 19.

      DOI: 10.1088/0264-9381/25/19/198001

    • Coley, Alan; Gibbons, Gary; Hervik, Sigbjørn; Pope, C.N.

      (2008)

      Metrics with vanishing quantum corrections.

      Classical and Quantum Gravity

      ISSN 0264-9381.

      Volum 25.

      Hefte 14.

      DOI: 10.1088/0264-9381/25/14/145017

    • Brannlund, Johan; Coley, Alan; Hervik, Sigbjørn

      (2008)

      Supersymmetry, holonomy and Kundt spacetimes.

      Classical and Quantum Gravity

      ISSN 0264-9381.

      Volum 25.

      Hefte 19.

      DOI: 10.1088/0264-9381/25/19/195007

  • Bøker og kapitler
  • Formidling
    • Hervik, Sigbjørn

      (2018)

      On spaces having identical polynomial curvature invariants.

    • Hervik, Sigbjørn

      (2016)

      Wick rotations and Holomorphic Riemannian geometry.

    • Hervik, Sigbjørn

      (2015)

      Differensialligninger.

    • Hervik, Sigbjørn

      (2014)

      Abelprisen 2014.

    • Hervik, Sigbjørn

      (2014)

      Partikkelfysikk.

    • Hervik, Sigbjørn

      (2014)

      Følger, rekker og diskret matematikk.

    • Hervik, Sigbjørn

      (2014)

      The Universe -- Cracking the code.

    • Hervik, Sigbjørn

      (2012)

      Nobelprisen i Fysikk 2011.

    • Hervik, Sigbjørn

      (2011)

      Herfra til Uendeligheten.

      Script

      Hefte 2.

  • Kunstnerisk produksjon
  • Kommersialisering
  • Cristin hovedlogo, Cristin current research information system in Norway