Conformal Killing equation on a 2-symmetric six-dimensional indecomposable Lorentzian manifold with trivial Weyl tensor

Authors

  • Maxim E. Gnedko Altai State University, 61 Lenina Avenue, Barnaul 656049, Russia
  • Olesya P. Khromova Altai State University, 61 Lenina Avenue, Barnaul 656049, Russia

Keywords:

conformal Killing vector field, k-symmetric space, Lorentzian manifold, Weyl tensor

Abstract

In this paper, we study the conformal analogue of the Killing equation on 2-symmetric six-dimensional indecomposable Lorentzian manifolds, and also study the properties of the conformal factor of this equation. For the case of conformally flat metrics, new non-trivial examples of conformal Killing vector fields with a variable conformal factor are constructed.

Author Biographies

  • Maxim E. Gnedko, Altai State University, 61 Lenina Avenue, Barnaul 656049, Russia

    assistant at the department of mathematical analysis, Institute of Mathematics and Information Technologies

  • Olesya P. Khromova, Altai State University, 61 Lenina Avenue, Barnaul 656049, Russia

    PhD (physics and mathematics), docent; associate professor at the department of mathematical analysis, Institute of Mathematics and Information Technologies

     

References

  1. Alekseevsky DV, Galaev AS. Two-symmetric Lorentzian manifolds. Journal of Geometry and Physics. 2011;61(12):2331–2340. DOI: 10.1016/j.geomphys.2011.07.005.
  2. Оскорбин ДН, Родионов ЕД, Эрнст ИВ. О размерностях пространства полей Киллинга на 2-симметрических лоренцевых многообразиях. Математические заметки СВФУ. 2019;26(3):47–56. EDN: RSCVOZ.
  3. Оскорбин ДН, Родионов ЕД. Солитоны Риччи и поля Киллинга на обобщенных многообразиях Кахена – Уоллаха. Сибирский математический журнал. 2019;60(5):1165–1170. DOI: 10.33048/smzh.2019.60.513.
  4. Андреева ТА, Оскорбин ДН, Родионов ЕД. О конформном множителе в конформном уравнении Киллинга на 2-симметрическом пятимерном неразложимом лоренцевом многообразии. Владикавказский математический журнал. 2023;25(3):5–14. DOI: 10.46698/f6017-0875-0171-y.
  5. Cahen M, Wallach N. Lorentzian symmetric spaces. Bulletin of the American Mathematical Society. 1970;76(3):585–591. DOI: 10.1090/S0002-9904-1970-12448-X.
  6. Cahen M, Kerbrat Y. Champs de vecteurs conformes et transformations conformes des espaces Lorentziens symétriques. Journal de Mathématiques Pures et Appliquées. 1978;57(2):99–132.
  7. Cahen M, Kerbrat Y. Transformations conformes des espaces symétriques pseudo-riemanniens. Annali di Matematica Pura ed Applicata. 1982;132:275–289. DOI: 10.1007/BF01760985.
  8. Wu H. On the de Rham decomposition theorem. Illinois Journal of Mathematics. 1964;8(2):291–311. DOI: 10.1215/ijm/1256059674.
  9. Blanco OF, Senovilla JMM, Sánchez M. Structure of second-order symmetric Lorentzian manifolds. Journal of the European Mathematical Society. 2013;15(2):595–634. DOI: 10.4171/JEMS/368.
  10. Hall GS. Conformal symmetries and fixed points in space-time. Journal of Mathematical Physics. 1990;31(5):1198–1207. DOI: 10.1063/1.528753.
  11. Андреева ТА, Оскорбин ДН, Родионов ЕД. Исследование конформно-киллинговых векторных полей на пятимерных 2-симметрических лоренцевых многообразиях. Вестник Югорского государственного университета. 2021;17(1):17–22. DOI: 10.17816/byusu20210117-22.
  12. Blau M, O’Loughlin M. Homogeneous plane waves. Nuclear Physics B. 2003;654(1–2):135–176. DOI: 10.1016/S0550-3213(03)00055-5.

Downloads

Published

2026-01-04

How to Cite

[1]
Gnedko, M.E. and Khromova, O.P. 2026. Conformal Killing equation on a 2-symmetric six-dimensional indecomposable Lorentzian manifold with trivial Weyl tensor. Journal of the Belarusian State University. Mathematics and Informatics. 3 (Jan. 2026), 29–37.