Strong solutions to a class of boundary value problems on a mixed Riemannian--Lorentzian metric

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2015, 2015(special): 801-808. doi: 10.3934/proc.2015.0801

Strong solutions to a class of boundary value problems on a mixed Riemannian--Lorentzian metric

Antonella Marini ^1, and Thomas H. Otway ^2,

1.	Dipartimento di Matematica, Università di L'Aquila, 67100 L'Aquila, Italy
2.	Department of Mathematical Sciences, Yeshiva University, New York, NY 10033, United States

Received September 2014 Revised January 2015 Published November 2015

Abstract
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A first-order elliptic-hyperbolic system in extended projective space is shown to possess strong solutions to a natural class of Guderley--Morawetz--Keldysh problems on a typical domain.

Keywords: extended projective disc, Elliptic-hyperbolic equations, symmetric positive operators..

Mathematics Subject Classification: Primary: 35M32; Secondary: 35Q75, 58J3.

Citation: Antonella Marini, Thomas H. Otway. Strong solutions to a class of boundary value problems on a mixed Riemannian--Lorentzian metric. Conference Publications, 2015, 2015 (special) : 801-808. doi: 10.3934/proc.2015.0801

References:

[1]	J. Barros-Neto and F. Cardoso, Gellerstedt and Laplace-Beltrami operators relative to a mixed signature metric,, Ann. Mat. Pura Appl. 188* (2009), 188* (2009), 497.
[2]	E. Beltrami, Saggio di interpretazione della geometria non-euclidea,, Giornale di Matematiche 6 (1868), 6 (1868), 284.
[3]	K. O. Friedrichs, Symmetric positive linear differential equations,, Commun. Pure Appl. Math. 11 (1958), 11 (1958), 333.
[4]	J. Heidmann, Relativistic Cosmology, An Introduction., Springer-Verlag, (1980).
[5]	M. V. Keldysh, On certain classes of elliptic equations with singularity on the boundary of the domain (Russian]),, Dokl. Akad. Nauk SSSR 77 (1951), 77 (1951), 181.
[6]	P. D. Lax and R. S. Phillips, Local boundary conditions for dissipative symmetric linear differential operators,, Commun. Pure Appl. Math. 13 (1960), 13 (1960), 427.
[7]	F. Lobo and P. Crawford, Time, closed timelike curves, and causality,, in The Nature of Time: Geometry, (2002), 21.
[8]	A. Marini and T. H. Otway, Nonlinear Hodge-Frobenius equations and the Hodge-Bäcklund transformation,, Proc. R. Soc. Edinburgh 140A (2010), 140A (2010), 787.
[9]	T. H. Otway, Nonlinear Hodge maps., J. Math. Phys. 41 (2000), 41 (2000), 5745.
[10]	T. H. Otway, Hodge equations with change of type,, Ann. Mat. Pura Appl. 181 (2002), 181 (2002), 437.
[11]	T. H. Otway, Harmonic fields on the projective disk and a problem in optics,, J. Math. Phys. 46 (2005), 46 (2005).
[12]	T. H. Otway, Variational equations on mixed Riemannian-Lorentzian metrics,, J. Geom. Phys. 58 (2008), 58 (2008), 1043.
[13]	T. H. Otway, The Dirichlet Problem for Elliptic-Hyperbolic Equations of Keldysh Type,, Lecture Notes in Mathematics, (2043).
[14]	T. H. Otway, Elliptic-Hyperbolic Partial Differential Equations: a mini-course in geometric and quasilinear methods,, Springer-Verlag, (2015).
[15]	L. Sarason, On weak and strong solutions of boundary value problems,, Commun. Pure Appl. Math. 15 (1962), 15 (1962), 237.
[16]	J. M. Stewart, Signature change, mixed problems and numerical relativity,, Class. Quantum Grav. 18 (2001), 18 (2001), 4983.
[17]	J. Stillwell, Sources of Hyperbolic Geometry,, Amer. Math. Soc., (1996).
[18]	W. J. van Stockum, The gravitational field of a distribution of particles rotating about an axis of symmetry,, Proc. R. Soc. Edinburgh 57 (1937), 57 (1937), 135.
[19]	F. J. Tipler, Rotating cylinders and the possibility of global causality violation,, Phys. Rev. D9 (1974), D9 (1974), 2203.
[20]	C. G. Torre, The helically reduced wave equation as a symmetric positive system,, J. Math. Phys. 44 (2003), 44 (2003), 6223.

show all references

References:

[1]	J. Barros-Neto and F. Cardoso, Gellerstedt and Laplace-Beltrami operators relative to a mixed signature metric,, Ann. Mat. Pura Appl. 188* (2009), 188* (2009), 497.
[2]	E. Beltrami, Saggio di interpretazione della geometria non-euclidea,, Giornale di Matematiche 6 (1868), 6 (1868), 284.
[3]	K. O. Friedrichs, Symmetric positive linear differential equations,, Commun. Pure Appl. Math. 11 (1958), 11 (1958), 333.
[4]	J. Heidmann, Relativistic Cosmology, An Introduction., Springer-Verlag, (1980).
[5]	M. V. Keldysh, On certain classes of elliptic equations with singularity on the boundary of the domain (Russian]),, Dokl. Akad. Nauk SSSR 77 (1951), 77 (1951), 181.
[6]	P. D. Lax and R. S. Phillips, Local boundary conditions for dissipative symmetric linear differential operators,, Commun. Pure Appl. Math. 13 (1960), 13 (1960), 427.
[7]	F. Lobo and P. Crawford, Time, closed timelike curves, and causality,, in The Nature of Time: Geometry, (2002), 21.
[8]	A. Marini and T. H. Otway, Nonlinear Hodge-Frobenius equations and the Hodge-Bäcklund transformation,, Proc. R. Soc. Edinburgh 140A (2010), 140A (2010), 787.
[9]	T. H. Otway, Nonlinear Hodge maps., J. Math. Phys. 41 (2000), 41 (2000), 5745.
[10]	T. H. Otway, Hodge equations with change of type,, Ann. Mat. Pura Appl. 181 (2002), 181 (2002), 437.
[11]	T. H. Otway, Harmonic fields on the projective disk and a problem in optics,, J. Math. Phys. 46 (2005), 46 (2005).
[12]	T. H. Otway, Variational equations on mixed Riemannian-Lorentzian metrics,, J. Geom. Phys. 58 (2008), 58 (2008), 1043.
[13]	T. H. Otway, The Dirichlet Problem for Elliptic-Hyperbolic Equations of Keldysh Type,, Lecture Notes in Mathematics, (2043).
[14]	T. H. Otway, Elliptic-Hyperbolic Partial Differential Equations: a mini-course in geometric and quasilinear methods,, Springer-Verlag, (2015).
[15]	L. Sarason, On weak and strong solutions of boundary value problems,, Commun. Pure Appl. Math. 15 (1962), 15 (1962), 237.
[16]	J. M. Stewart, Signature change, mixed problems and numerical relativity,, Class. Quantum Grav. 18 (2001), 18 (2001), 4983.
[17]	J. Stillwell, Sources of Hyperbolic Geometry,, Amer. Math. Soc., (1996).
[18]	W. J. van Stockum, The gravitational field of a distribution of particles rotating about an axis of symmetry,, Proc. R. Soc. Edinburgh 57 (1937), 57 (1937), 135.
[19]	F. J. Tipler, Rotating cylinders and the possibility of global causality violation,, Phys. Rev. D9 (1974), D9 (1974), 2203.
[20]	C. G. Torre, The helically reduced wave equation as a symmetric positive system,, J. Math. Phys. 44 (2003), 44 (2003), 6223.

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