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The higher spin Laplace operator

(2017) POTENTIAL ANALYSIS. 47(2). p.123-149
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Abstract
This paper deals with a certain class of second-order conformally invariant operators acting on functions taking values in particular (finite-dimensional) irreducible representations of the orthogonal group. These operators can be seen as a generalisation of the Laplace operator to higher spin as well as a second-order analogue of the Rarita-Schwinger operator. To construct these operators, we will use the framework of Clifford analysis, a multivariate function theory in which arbitrary irreducible representations for the orthogonal group can be realised in terms of polynomials satisfying a system of differential equations. As a consequence, the functions on which this particular class of operators act are functions taking values in the space of harmonics homogeneous of degree k. We prove the ellipticity of these operators and use this to investigate their kernel, focusing on polynomial solutions. Finally, we will also construct the fundamental solution using the theory of Riesz potentials.
Keywords
Harmonic analysis, Invariant operators, Fundamental solutions

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MLA
De Bie, Hendrik, et al. “The Higher Spin Laplace Operator.” POTENTIAL ANALYSIS, vol. 47, no. 2, SPRINGER, 2017, pp. 123–49, doi:10.1007/s11118-016-9609-3.
APA
De Bie, H., Eelbode, D., & Roels, M. (2017). The higher spin Laplace operator. POTENTIAL ANALYSIS, 47(2), 123–149. https://doi.org/10.1007/s11118-016-9609-3
Chicago author-date
De Bie, Hendrik, David Eelbode, and Matthias Roels. 2017. “The Higher Spin Laplace Operator.” POTENTIAL ANALYSIS 47 (2): 123–49. https://doi.org/10.1007/s11118-016-9609-3.
Chicago author-date (all authors)
De Bie, Hendrik, David Eelbode, and Matthias Roels. 2017. “The Higher Spin Laplace Operator.” POTENTIAL ANALYSIS 47 (2): 123–149. doi:10.1007/s11118-016-9609-3.
Vancouver
1.
De Bie H, Eelbode D, Roels M. The higher spin Laplace operator. POTENTIAL ANALYSIS. 2017;47(2):123–49.
IEEE
[1]
H. De Bie, D. Eelbode, and M. Roels, “The higher spin Laplace operator,” POTENTIAL ANALYSIS, vol. 47, no. 2, pp. 123–149, 2017.
@article{8530984,
  abstract     = {{This paper deals with a certain class of second-order conformally invariant operators acting on functions taking values in particular (finite-dimensional) irreducible representations of the orthogonal group. These operators can be seen as a generalisation of the Laplace operator to higher spin as well as a second-order analogue of the Rarita-Schwinger operator. To construct these operators, we will use the framework of Clifford analysis, a multivariate function theory in which arbitrary irreducible representations for the orthogonal group can be realised in terms of polynomials satisfying a system of differential equations. As a consequence, the functions on which this particular class of operators act are functions taking values in the space of harmonics homogeneous of degree k. We prove the ellipticity of these operators and use this to investigate their kernel, focusing on polynomial solutions. Finally, we will also construct the fundamental solution using the theory of Riesz potentials.}},
  author       = {{De Bie, Hendrik and Eelbode, David and Roels, Matthias}},
  issn         = {{0926-2601}},
  journal      = {{POTENTIAL ANALYSIS}},
  keywords     = {{Harmonic analysis,Invariant operators,Fundamental solutions}},
  language     = {{eng}},
  number       = {{2}},
  pages        = {{123--149}},
  publisher    = {{SPRINGER}},
  title        = {{The higher spin Laplace operator}},
  url          = {{http://dx.doi.org/10.1007/s11118-016-9609-3}},
  volume       = {{47}},
  year         = {{2017}},
}

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