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On Weighted Dirac Operators and Their Fundamental Solutions for Anisotropic Media

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Abstract

The heat transfer problem in isotropic media has been studied extensively in Clifford analysis, but very little in the anisotropic case for this setting. As a first step in this way, we introduce in this work Dirac operators with weights belonging to the Clifford algebra \({\mathcal {A}}_n\), which factor the second order elliptic differential operator \( {\tilde{\Delta }}_n= div (B \,\nabla ), \) where \(B \in \mathbb {R}^{n \times n}\) is a symmetric and positive definite matrix. For these weighted Dirac operators we construct fundamental solutions and get a Borel–Pompeiu and Cauchy integral formula.

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References

  1. Ariza, E., Di Teodoro, A., Infante, A., Vanegas, C.J.: Fundamental solutions for second order elliptic operators in Clifford-type algebras. Adv. Appl. Clifford Algebra 25, 527–538 (2015)

    Article  MathSciNet  MATH  Google Scholar 

  2. Bernstein, S.: Factorization of the nonlinear Schröndinger equation and applications. Complex Var. Elliptic Equ. Spec. Issue Tribute R. Delanghe 51, 429–452 (2006)

    Article  MATH  Google Scholar 

  3. Bolívar, Y., Di Teodoro, A., Vanegas, C.J.: Generalized Cauchy-Riemann-type operators and some integral representation formulas. Proceedings of the International Conference on Numerical Analysis and Applied Mathematics 2014 (ICNAAM-2014), 1648 (2014)

  4. Bolívar, Y., Vanegas, C.J.: Initial value problems in Clifford-type analysis. Complex Var. Ellip. Equ. 58, 557–569 (2013)

    Article  MathSciNet  MATH  Google Scholar 

  5. Brackx, F., Delanghe, R., Sommen, F.: Clifford analysis. Pitman Research Notes in Mathematics, Boston 76 (1982)

  6. Cerejeiras, P., Kähler, U., Sommen, F.: Parabolic Dirac operators and the Navier–Stokes equations over time-varying domains. Math. Methods Appl. Sci. 28, 1715–1724 (2005)

    Article  ADS  MathSciNet  MATH  Google Scholar 

  7. Di Teodoro, A., Franquiz, R., López, A.: A modified Dirac operator in parameter-dependent Clifford algebra: A physical realization. Adv. Appl. Clifford Algebras 25(2), 303–320 (2015)

    Article  MathSciNet  MATH  Google Scholar 

  8. Gürlebeck, K., Kähler, U., Shapiro, M.: On the \(\Pi \)-operator in hyperholomorphic function theory. Adv. Appl. Clifford Algebra 9, 23–40 (1999)

    Article  MathSciNet  MATH  Google Scholar 

  9. Gürlebeck, K., Sprössig, W.: Quaternionic Analysis and Elliptic Boundary Value Problems. Birkhäuser, Basel (1990)

    Book  MATH  Google Scholar 

  10. Gürlebeck, K., Sprössig, W.: Quaternionic and Clifford Calculus for Engineers and Physicists. Wiley, Chichester (1997)

    MATH  Google Scholar 

  11. Hahn, D., Ozisik, M.: Heat Conduction, vol. 15. Wiley, Amsterdam (2012)

    Book  Google Scholar 

  12. Játem, J., Vanegas, C.J.: Algebraic structures in generalized Clifford analysis and applications to boundary value problems. Bull. Comput. Appl. Math. 3(2), 39–69 (2016)

    MathSciNet  Google Scholar 

  13. Shapiro, M.V., Vasilevski, N.L.: Quaternionic \(\Psi \)-hyperholomorphic functions, singular integral operators and boundary value problems I. \(\Psi \)-hyperholomorphic function theory. Complex Var. 27, 17–46 (1995)

    MathSciNet  MATH  Google Scholar 

  14. Shapiro, M.V., Vasilevski, N.L.: On the Bergman Kernel Function in the Clifford Analysis. Contained in Clifford Algebras and Their Applications in Mathematical Physics, pp. 183–192. Kluwer, Dordrecht (1993)

    MATH  Google Scholar 

  15. Tutschke, W., Vanegas, C.J.: Métodos del análisis complejo en dimensiones superiores. XXI Escuela Venezolana de Matemáticas, Ediciones IVIC, Caracas (2008)

  16. Tutschke, W., Vanegas, C.J.: Clifford algebras depending on parameters and their applications to partial differential equations. Contained in some topics on value distribution and differentiability in complex and p-adic analysis. Beijing Science Press. Mathematics Monograph Series 11, 430–450 (2008)

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Correspondence to Judith Vanegas.

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Communicated by Helmuth Robert Malonek.

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Vanegas, J., Vargas, F. On Weighted Dirac Operators and Their Fundamental Solutions for Anisotropic Media. Adv. Appl. Clifford Algebras 28, 46 (2018). https://doi.org/10.1007/s00006-018-0860-0

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