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    Hidden Consequence Of Active Local Lorentz Invariance

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    In this paper we investigate a hidden consequence of the hypothesis that Lagrangians and field equations must be invariant under active local Lorentz transformations. We show that this hypothesis implies in an equivalence between spacetime structures with several curvature and torsion possibilities. © 2006 World Scientific Publishing Company.22305357Aharonov, Y., Susskind, L., Observality of the sign of spinors under a 2π rotation (1967) Phys. Rev., 158, pp. 1237-1238Bleecker, D., (1981) Gauge Theory and Variational Principles, , (Addison-Wesley Publ. Co., Inc., Reading, MA)Choquet-Bruhat, Y., DeWitt-Morette, C., Dillard-Bleick, M., (1977) Analysis, Manifolds and Physics, , revised edn. (North-Holland Publ. Co, Amsterdam)Crumeyrolle, A., (1990) Orthogonal and Sympletic Clifford Algebras, , (Kluwer Acad. Publ., Dordrecht)Fernández, V.V., Moya, A.M., Rodrigues Jr., W.A., Euclidean Clifford algebra (2001) Adv. Appl. Clifford Algebras, 11 (S3), pp. 1-21Fernández, V.V., Moya, A.M., Rodrigues Jr., W.A., (2001) Extensors, Adv. Appl. Clifford Algebras, 11 (S3), pp. 23-40Fernández, V.V., Moya, A.M., Rodrigues Jr., W.A., Metric tensor vs. metric extensor (2001) Adv. Appl. Clifford Algebras, 11 (S3), pp. 41-48Geroch, R., Spinor structure of spacetimes in general relativity. I (1988) J. Math. Phys., 9, pp. 1739-1744Hehl, F.W., Datta, B.K., Nonlinear spinor equation and asymmetric conection in general relativity (1967) J. Math. Phys., 12, pp. 798-808Ivanenko, D.D., Landau, L.D., Zur theorie des magnetischen elektrons (1928) I, Z. Phys., 48, pp. 340-348Kobayashi, S., Nomizu, K., (1963) Foundations of Differential Geometry, 1. , (Interscience Publishers, New York)Lawson Blaine Jr., H., Michelson, M.L., (1989) Spin Geometry, , (Princeton University Press, Princeton)Mielke, E.W., (1987) Geometrodynamics of Gauge Fields, , (Akademie-Verlag, Berlin)Mosna, R.A., Rodrigues Jr., W.A., The bundles of algebraic and Dirac-Hestenes spinor fields (2004) J. Math. Phys., 45, pp. 2945-2966Moya, A.M., Fernández, V.V., Rodrigues Jr., W.A., Lagrangian formalism for multivector fields on spacetime (2001) Int. J. Theor. Phys., 40, pp. 299-313Moya, A.M., Fernández, V.V., Rodrigues Jr., W.A., Metric Clifford algebra (2001) Adv. Appl. Clifford Algebras, 11 (S3), pp. 49-68Moya, A.M., Fernández, V.V., Rodrigues Jr., W.A., Multivector functions of real variable (2001) Adv. Appl. Clifford Algebras, 11 (S3), pp. 69-77Moya, A.M., Fernández, V.V., Rodrigues Jr., W.A., Multivector functions of mutivector variable (2001) Adv. Appl. Clifford Algebras, 11 (S3), pp. 79-91Moya, A.M., Fernández, V.V., Rodrigues Jr., W.A., Multivector functionals (2001) Adv. Appl. Clifford Algebras, 11 (S3), pp. 93-103Oliveira Capelas, E., Rodrigues Jr., W.A., Dotted and Undotted algebraic spinor fields in general relativity (2004) Int. J. Mod. Phys., D13, pp. 1637-1659Palais, R.S., (1981) The Geometrization of Physics, , in Lecture Notes from a Course at the National Tsing Hua University, Hsinchu, Taiwan, The Geometrization of PhysicsRamond, P., (1989) Field Theory: A Modern Primer, , 2nd edn. (Addison-Wesley Publ. Co., Reading, MA)Rodrigues Jr., W.A., Souza, Q.A.G., The Clifford bundle and the nature of the gravitational fields (1995) Found. Phys., 23, pp. 1465-1490Rodrigues Jr., W.A., Sharif, M., Equivalence principle and the principle of local Lorentz invariance (2002) Found. Phys., 32, pp. 811-812. , Found. Phys. 31 (2001) 1785-1806, corrigenda:Rodrigues Jr., W.A., Algebraic and Dirac-Hestenes spinor and spinor fields (2004) J. Math. Phys., 45, pp. 2908-2945Rodrigues Jr., W.A., Souza, Q.A.G., An ambiguous statement called "tetrad postulate" sand the correct field equations satisfied by the tetrad fields math-ph/0411085Sachs, R.K., Wu, H., (1977) Relativity for Mathematicians, , (Springer-Verlag, Berlin)Souza, Q.A.G., Rodrigues Jr., W.A., The Dirac operator the structure of Riemann-Cartan-Weyl Spaces (1994) Gravitation: The Spacetime Structure. Proc. SILARG VIII, pp. 179-212. , in eds. P. Letelier W. A. Rodrigues, Jr. (World Scientific Singapore)Thirring, W., Wallner, R.P., The use of exterior forms in Einstein's gravitational theory (1978) Braz. J. Phys., 8, pp. 686-723Wallner, R.P., Notes on the gauge theory and gravitation (1982) Acta Phys. Austriaca, 54, pp. 165-18

    Lagrangian Formalism For Multiform Fields On Minkowski Spacetime

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    We present the Lagrangian formalism for multiform fields on Minkowski spacetime based on the multiform and extensor calculus. The formulation gives a unified mathematical description for the relativistic field theories including the gravitational field. We work out examples including the Dirac-Hestenes field on the gravitational background. © 2001 Plenum Publishing Corporation.401299313De Leo, S., Oziewicz, Z., Rodrigues Jr., W.A., Vaz Jr., J., The Dirac-Hestenes Lagrangian (1999) International Journal of Theoretical Physics, 38, pp. 2347-2367Moya, A.M., (1999) Lagrangian Formalism for Multivector Fields on Minkowski Spacetime, , Ph.D. Thesis, IMECC-UNICAMPMoya, A.M., Fernández, V.V., Rodrigues Jr., W.A., (2000) Clifford Multivector Fields and Extensor Fields, , in preparationManuel, M.A., Fernández, V.V., Rodrigues Jr., W.A., (2000) Gravitational Fields as Distortion Fields on Minkowski SpacetimeHestenes, D., (1966) Space-time Algebra, , Gordon and Breach, New YorkHestenes, D., Sobczyk, G., (1984) Clifford Algebra to Geometrical Calculus, , Reidel, DordrechtFernández, V.V., Moya, A.M., Rodrigues Jr., W.A., Covariant derivatives on Minkowski manifolds (2000) Clifford Algebra and Their Applications in Mathematical Physics, Volume 1, Algebra and Physics, 1. , R. Ablamowicz and B. Fauser, Editors, Birkhauser, BostonFernández, V.V., Moya, A.M., Rodrigues Jr., W.A., (2000) The Algebraic Theory of Connections, Differential and Lie Operators for Clifford and Extensor FieldsLasenby, A., Doran, C., Gull, S., A multivector derivative approach to Lagrangian field theory (1993) Foundations of Physics, 23, pp. 1329-1356Lasenby, A., Doran, C., Gull, S., Gravity, gauge theories and geometric algebra (1998) Philosophical Transactions of the Royal Society, 356, pp. 487-582Lounesto, P., (1997) Clifford Algebras and Spinors, , Cambridge University Press, CambridgeRodrigues Jr., W.A., De Rosa, M.A.F., The meaning of time in relativity and Einstein's later view of the twin paradox (1989) Foundations of Physics, 19, pp. 705-724Rodrigues Jr., W.A., De Souza, Q.A.G., The Cifford bundle and the nature of the gravitational field (1993) Foundations of Physics, 23, pp. 1456-1490Rodrigues Jr., W.A., De Souza, Q.A.G., Vaz Jr., J., Lagrangian formulation in the Clifford bundle of the Dirac-Hestenes equation on a Riemann-Cartan manifold (1994) Gravitation: The Spacetime Structure, pp. 522-531. , Patricio Letelier and Waldyr Alves Rodrigues Jr., Editors, World Scientific, SingaporeRodrigues Jr., W.A., De Souza, Q.A.G., Vaz Jr., J., Lounesto, P., Dirac-Hestenes spinor fields on Riemann-Cartan manifolds (1995) International Journal of Theoretical Physics, 35, pp. 1849-1900Sachs, R.K., Wu, H.-H., (1977) General Relativity for Mathematicians, , Springer-Verlag, New Yor

    Lagrangian Formalism In Minkowski Spacetime

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    [No abstract available]722269292Jauch, J.M., Rorlich, F., (1976) The Theory of Photons and Electrons, , Springer-Verlag, BerlinMoya, A.M., Fernández, V.V., Rodrigues Jr., W.A., Lagrangian Formalism for Multiform Fields on Minkowski Spacetime (2001) Int. J. Theor. Phys, 40, pp. 299-314Thirring, W., (1980) Classical Field Theory, 2. , Springer-Verlag, New Yor

    Locally Inertial Reference Frames In Lorentzian And Riemann-cartan Spacetimes

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    In this paper the concept of locally inertial reference frames (LIRFs) in Lorentzian and Riemann-Cartan spacetime structures is scrutinized. A rigorous mathematical definition of a LIRF in both structures is given, something that needs preliminary a clear mathematical distinction between the concepts of observers, reference frames, naturally adapted coordinate functions to a given reference frame and which properties may characterize an inertial reference frame (if any) in the Lorentzian and Riemann-Cartan structures. Hopefully, the paper clarifies some obscure issues associated to the concept of a LIRF appearing in the literature, in particular the relationship between LIRFs in Lorentzian and Riemann-Cartan spacetimes and Einstein's most happy thought, i.e., the equivalence principle. © 2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.5245302310Aldrovandi, R., Barros, P.B., Pereira, J.G., (2002) Found. Phys, 33, pp. 545-575. , [arXiv:gr-qc/0212034v1]Bishop, R.L., Goldberg, S.I., (1980) Tensor Analysis on Manifolds, , (Dover, New York)Choquet-Bruhat, Y., Dewitt-Morette, C., Dillard-Bleick, M., (1982) Analysis, Manifolds and Physics, , revised edition (North-Holland, Amsterdam)L. Fabbri, [arXiv:gr-qc/060809v3]L. Fabbri, [arXiv:09052541v3[gr-qc]]Fernández, V.V., Rodrigues Jr., W.A., (2010) Gravitation As A Plastic Distortion of the Lorentz Vacuum, Fundamental Theories of Physics, 168. , (Springer, Heidelberg)Hartley, D., (1995) Class. Quantum Gravity, 12. , L103-L105Ilieve, B.Z., (1996) J. Phys. A: Math. Gen., 29, pp. 6895-6901Ilieve, B.Z., (1997) J. Phys. A: Math. Gen., 30, pp. 4327-4336Ilieve, B.Z., (1998) J. Phys. A: Math. Gen., 31, pp. 1287-1296Ilieve, B.Z., (1998) J. Geom. Phys., 24, pp. 209-222Y. Lam, [arXiv:gr-qc/02110009v1]J.F.T. Giglio, and, W.A. Rodrigues Jr.,[arXiv:1109.5403v1[physics.gen-ph] ]Nester, J.M., (2010) Ann. Phys. (Berlin), 19, pp. 45-52Rodrigues Jr., W.A., Rosa, M.A.F., (1989) Found. Phys., 19, pp. 705-724Rodrigues Jr., W.A., Souza, Q.A.G., Bozhkov, Y., (1995) Found. Phys, 25, pp. 871-924Rodrigues Jr., W.A., Sharif, M., (2001) Found. Phys., 31, pp. 1785-1806. , corrigenda: Found. Phys 32, 811-812 (2002)Rodrigues Jr., W.A., De Oliveira, E.C., The Many Faces of Maxwell, Dirac and Einstein Equations. A Clifford Bundle Approach (2007) Lecture Notes in Physics, 722. , http://www.ime.unicamp.br/~walrod/errata14062011.pdf, (Springer, Heidelberg,)Rodrigues Jr., W.A., Rept. Math. Phys., , [arXiv:1109.5272v2 [math-ph]]Ohanian, H.C., Ruffini, R., (1994) Gravitation and Spacetime, , 2nd edition (W. W. Norton & Co., New York)M. Socolovsky, [arXiv:1009.3979[gr-qc]]Sachs, R.K., Wu, H., (1997) General Relativity for Mathematicians, , (Springer-Verlag, New York)E.L. Schücking, [arXiv:0903.3768v2[physics.hist-ph]]Von Der Heyde, P., (1975) Nuovo Cimento Lett., 14, pp. 250-25

    Algebraic And Dirac-hestenes Spinors And Spinor Fields

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    Almost all presentations of Dirac theory in first or second quantization in physics (and mathematics) textbooks make use of covariant Dirac spinor fields. An exception is the presentation of that theory (first quantization) offered originally by Hestenes and now used by many authors. There, a new concept of spinor field (as a sum of nonhomogeneous even multivectors fields) is used. However, a careful analysis (detailed below) shows that the original Hestenes definition cannot be correct since it conflicts with the meaning of the Fierz identities. In this paper we start a program dedicated to the examination of the mathematical and physical basis for a comprehensive definition of the objects used by Hestenes. In order to do that we give a preliminary definition of algebraic spinor fields (ASF) and Dirac-Hestenes spinor fields (DHSF) on Minkowski space-time as some equivalence classes of pairs (ξu, ψu), where ξu is a spinorial frame field and ψu is an appropriate sum of multivectors fields (to be specified below). The necessity of our definitions are shown by a careful analysis of possible formulations of Dirac theory and the meaning of the set of Fierz identities associated with the bilinear covariants (on Minkowski space-time) made with ASF or DHSF. We believe that the present paper clarifies some misunderstandings (past and recent) appearing on the literature of the subject. It will be followed by a sequel paper where definitive definitions of ASF and DHSF are given as appropriate sections of a vector bundle called the left spin-Clifford bundle. The bundle formulation is essential in order to be possible to produce a coherent theory for the covariant derivatives of these fields on arbitrary Riemann-Cartan space-times. 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Fis., B, 117 B, pp. 95-120Marchuck, N., The Tensor Dirac Equation in Riemannian Space, , math-ph/0010045Marchuck, N., A Tensor Form of the Dirac Equation, , math-ph/0007025Marchuck, N., A gauge model with spinor group for a description of a local interaction of a Fermion with electromagnetic and gravitational fields (2000) Nuovo Cimento Soc. Ital. Fis., B, 115 B, pp. 11-25Marchuck, N., Dirac Gamma-equation, Classical Gauge Fields and Clifford Algebra, , math-ph/9811022Matteuci, P., (2003) Gravity, Spinors and Gauge Natural Bundles,", , http://www.maths.soton.ac.uk/~pnm/phdthesis.pdf, Ph.D. thesis, Univ. 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    The Effective Lorentzian And Teleparallel Spacetimes Generated By A Free Electromagnetic Field

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    In this paper we show that a free electromagnetic field living in Minkowski spacetime generates an effective Weitzenböck or an effective Lorentzian spacetime whose properties are determined in details. These results are possible because using the Clifford bundle formalism we found a noticeable result that the energy-momentum densities of a free electromagnetic field are sources of the Hodge duals of exact 2-form fields which satisfy Maxwell like equations. © 2008 Polish Scientific Publishers PWN, Warszawa.6216989Hestenes, D., (1966) Space Time Algebra, , Gordon and Breach, New YorkFernández, V.V., Moya, A.M., Rodrigues Jr., W.A., Extensors (2001) Adv. Appl. Clifford Algebras, 11, p. 23Notte-Cuello, E., Rodrigues Jr., W.A., A Maxwell Like Formulation of Gravitational Theory in Minkowski Spacetime (2007) Int. J. Mod. Phys. D, 16, p. 1027Notte-Cuello, E., Rodrigues Jr., W.A., Superposition principle and the problem of the additivity of energies and momenta of distinct electromagnetic fields (2008) Rep. Math. Phys., 62, pp. 91-101Misner, C.W., Wheeler, J.A., Classical Physics and Geometry: Gravitation, Electromagnetism, Unquantized Charge and Mass as Properties of Curved Empty Spacetime (1957) Ann. Phys., 2, p. 525Mosna, R.A., Rodrigues Jr., W.A., The bundles of algebraic and Dirac-Hestenes spinor fields (2004) J. Math. Phys., 45, p. 2954Rainich, G.Y., Electrodynamics in the General Relativity Theory (1925) Trans. Am. Math. Soc., 27, p. 106Riesz, M., Clifford Numbers and Spinors: with Riesz's Private Lectures to E. Folke Bolinder and a Historical Review by Pertti Lounesto (1993) Fundamental Theories of Physics, 54. , Springer, BerlinRodrigues Jr., W.A., de Souza, Q.A.G., da Rocha, R., Conservation Laws on Riemann-Cartan, Lorentzian and Teleparallel Spacetimes I. Conservation Laws (2007) Bulletin Soc. des Sci. et Lettres de Lódz 57, Ser. Recherches sur les Deformations, 52, pp. 37-65Rodrigues Jr., W.A., de Souza, Q.A.G., da Rocha, R., Conservation Laws on Riemann-Cartan,Lorentzian and Teleparallel Spacetimes II. Appendix on Clifford Bundles, Maxwell Theory and Teleparallel Spacetimes (2007) Bulletin Soc. des Sci. et Lettres de Lódz 57, Ser. Recherches sur les Deformations, 52, pp. 67-77Rodrigues Jr., W.A., Capelas de Oliveira, E., The Many Faces of Maxwell, Dirac and Einstein Equations. A Clifford Bundle Approach (2007) Lecture Notes in Physics, 722. , Springer, HeidelbergThirring, W., (1980) Classical Field Theory, 2. , Springer, New YorkThirring, W., Wallner, R., The use of exterior forms in Einstein's gravitational theory (1978) Brazilian J. Phys., 8, p. 86

    The Hidden Geometrical Nature Of Spinors

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    [No abstract available]7226194Aharonov, Y., Susskind, L., Observability of the Sign of Spinors under a 2π Rotation (1967) Phys. Rev, 158, pp. 1237-1238Ahluwalia-Khalilova, D. V., and Grumiller D., Spin Half Fermions, with Mass Dimension One: Theory, Phenomenology, and Dark Matter, JCAP 07, 012 (2005). [hep-th/0412080]Benn, I.M., Tucker, R.W., (1987) An Introduction to Spinors and Geometry with Applications in Physics, , Adam Hilger, BristolBjorken, J.D., A Dynamical Origin for the Electromagnetic Field (1963) Ann. Phys.(New York), 24, pp. 174-187Chevalley, C., (1997) The Algebraic Theory of Spinors and Clifford Algebras, , Springer-Verlag, BerlinChoquet-Bruhat, Y., DeWitt-Morette, C., Dillard-Bleick, M., (1982) Analysis, Manifolds and Physics, , revisited edition, North Holland Publ. Co, AmsterdamCrawford, J., On the Algebra of Dirac Bispinor Densities: Factorization and Inversion Theorems (1985) J. Math. Phys, 26, pp. 1439-1441Crumeyrolle, A., (1990) Orthogonal and Sympletic Clifford Algebras, , Kluwer Acad. Publ, DordrechtFigueiredo, V.L., Rodrigues Jr., W.A., Oliveira, E., Capelas de, Covariant, Algebraic and Operator Spinors (1990) Int. J. Theor. Phys, 29, pp. 371-395Figueiredo, V.L., Rodrigues Jr., W.A., Oliveira, E., Capelas de., Clifford Algebras and the Hidden Geometrical Nature of Spinors (1990) Algebras, Groups and Geometries, 7, pp. 153-198Lawson, Blaine Jr., H., Michelson, M.L., (1989) Spin Geometry, , Princeton University Press, PrincetonLounesto, P., Clifford Algebras and Hestenes Spinors (1993) Found. Phys, 23, pp. 1203-1237Lounesto, P., Clifford Algebras, Relativity and Quantum Mechanics (1994) Gravitation: The Spacetime Structure, pp. 50-81. , P. Letelier and W. A. Rodrigues Jr, eds, World Sci. Publ. Co, SingaporeLounesto, P., (1997) Clifford Algebras and Spinors, , Cambridge Univ. Press, CambridgeLounesto, P., Scalar Product of Spinors and an Extension of the Brauer-Wall Groups (1981) Found. Phys, 11, pp. 721-740Miller Jr., W., (1972) Symmetry Groups and their Applications, , Academic Press, New YorkMosna, R.A., Miralles, D., Vaz Jr., J., Multivector Dirac Equations and Z2-Gradings Clifford Algebras (2002) Int. J. Theor. Phys, 41, pp. 1651-1671Mosna, R. A., Miralles, D., and Vaz, J., Jr., Z2-Gradings on Clifford Algebras and Multivector Structures, J. Phys. A: Math. Gen. 36 4395-4405 (2003). [math-ph/0212020]Porteous, I.R., (1981) Topological Geometry, , second edition, Cambridge Univ. Press, CambridgePorteous, I.R., (2001) Clifford Algebras and the Classical Groups, , second edition, Cambridge Univ. Press, CambridgeRodrigues, W. A. Jr., Algebraic and Dirac-Hestenes Spinors and Spinor Fields, J. Math. Physics 45, 2908-2944 (2004). [math-ph/ 0212030]da Rocha, R., and Rodrigues, W.A. Jr., Where are ELKO Spinor Field in Lounesto Spinor Field Classification?, Mod. Phys. Lett. A, 21 65-76 (2006). [math-phys/0506075]Zeni, J.R.R., Rodrigues Jr., W.A., A Thoughtful Study of Lorentz Transformations by Clifford Algebras (1992) Int. J. Mod. Phys. A, 7, pp. 1793-181

    Gravitational Theory In Minkowski Spacetime

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    Maxwell, Dirac And Seiberg-witten Equations

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    [No abstract available]722363392Campolattaro, A.A., New Spinor Representation of Maxwell Equations 2. Generalities (1980) Int. J. Theor. Phys, 19, pp. 127-138Campolattaro, A.A., Generalized Maxwell Equations and Quantum Mechanics 1. Dirac Equation for the Free Electron (1980) Int. J. Theor. Phys, 19, pp. 141-155Campolattaro, A.A., Generalized Maxwell Equations and Quantum Mechanics 2. Generalized Dirac Equation (1980) Int. J. Theor. Phys, 19, pp. 477-482Campolattaro, A. A., From Classical Electrodynamics to Relativistic Quantum Mechanics, in J. Keller and Z. Ozwiecz (eds.), The Theory of the Electron, Adv. Appl. Clifford Algebras 7 (S), 167-173 (1997)Campolattaro, A.A., New Spinor Representation of Maxwell Equations 1. Generalities (1980) Int. J. Theor. Phys, 19, pp. 99-126Carvalho, A.L.T., Rodrigues Jr., W.A., The Non Sequitur Mathematics and Physics of the 'New Electrodynamics' Proposed by the AIAS group (2001) Random Operators and Stochastic Equations, 9, pp. 161-206Chown, M., Double or quit (2000) New Scientist, (2000), pp. 24-27. , October 14Evans, M.W., The Elementary Static Magnetic Field of the Photon (1992) Physica B, 182, pp. 227-236Evans, M.W., Vigier, J.P., The Enigmatic Photon (1994) The Field B (3), 1. , Kluwer Acad. Publ, DordrechtEvans, M.W., Vigier, J.P., The Enigmatic Photon (1995) Non Abelian Electrodynamics, 2. , Kluwer Acad. Publ, DordrechtEvans, M.W., Vigier, J.P., Roy, S., Jeffers, S., The Enigmatic Photon (1996) Theory and Practice of the B (3) Field, 3. , Kluwer Acad. Publ, DordrechtEvans, M. W., Vigier, J. P., Roy, S. and Hunter, G., The Enigmatic Photon, 4: New Directions, Kluwer Acad. Publ., Dordrecht, 1998Evans, M.W., Vigier, J.P., The Enigmatic Photon (1999) O(3) Electrodynamics, 5. , Kluwer Acad. 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Soc, Providence, Rohde IslandNash, C., Sen, S., (1983) Topology and Geometry for Physicists, , Academic Press, LondonOliveira, Capelas de, E., Rodrigues Jr., W.A., (2007) Subluminal, Luminal and Superluminal Wave Motion, , Book in preparationRainich, G., Electrodynamics and General Relativity Theory (1925) Am. Math. Soc. Trans, 27, pp. 106-136Rodrigues Jr., W.A., Lu, J.Y., On the Existence of Undistorted Progressive Waves (UPWs) of Arbitrary Speeds 0 ≤ = v ≤ ∞ in Nature (1997) Found. Phys, 27, pp. 435-508Rodrigues Jr., W.A., Tiomno, J., On Experiments to Detect Possible Failures of Relativity Theory (1985) Found. Phys, 15, pp. 995-961. , Not citedRodrigues, W. A. Jr., and Vaz, J. Jr, Subluminal and Superluminal Solutions in Vacuum of the Maxwell Equations and the Massless Dirac Equation. Talk presented at the International Conference on the Theory of the Electron, Mexico City, 1995, Advances in Appl. 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XI (1986) Zeitschrift für Naturforschung, 41 a, pp. 1431-1432Seiberg, N. and Witten, E. Monopoles, Duality and Chiral Symmetry Breaking in N = 2 QCD, Nucl. Phys. B 431, 581-640 (1994)Silverman, M.P., (1998) Waves and Grains, , Princeton University Press, PrincetonSimulik, V.M., Krivisshi, I.Y., Slight Generalized Maxwell Classical Electrodynamics can be Applied to Inneratomic Phenomena (2002) Ann. Fond. L. de Broglie, 27, pp. 303-328Vaz Jr., J., Clifford Algebras and Witten's Monopole Equations (1997) Geometry, Topology and Physics, , Apanasov, B. N, Bradlow, S. B, Rodrigues, W. A. Jr. and Uhlenbeck, K. K, eds, W. de Gruyter, BerlinVaz Jr., J., Rodrigues Jr., W.A., On the Equivalence of Maxwell and Dirac Equations and Quantum Mechanics (1993) Int. J. Theor. Phys, 32, pp. 945-958Vaz, J. Jr., and Rodrigues,W. A. Jr., Maxwell and Dirac Theories as an Already Unified Theory. Talk presented at the International Conference on the Theory of the Electron, Mexico City, 1995, Advances in Appl. Clifford Algebras 7 (Sup.), 369-386 (1997

    The Maxwell And Navier-stokes Equations That Follow From Einstein Equation In A Spacetime Containing A Killing Vector Field

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    Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)In this paper we are concerned to reveal that any spacetime structure 〈M, g, D, τg, ↑〉, which is a model of a gravitational field in General Relativity generated by an energy-momentum tensor T - and which contains at least one nontrivial Killing vector field A - is such that the 2-form field F = dA (where A = g(A,)) satisfies a Maxwell like equation - with a well determined current that contains a term of the superconducting type- which follows directly from Einstein equation. Moreover, we show that the resulting Maxwell like equations, under an additional condition imposed to the Killing vector field, may be written as a Navier-Stokes like equation as well. As a result, we have a set consisting of Einstein, Maxwell and Navier-Stokes equations, that follows sequentially from the first one under precise mathematical conditions and once some identifications about field variables are evinced, as explained in details throughout the text. We compare and emulate our results with others on the same subject appearing in the literature. In Appendix A we fix our notation and recall some necessary material concerning the theory of differential forms, Lie derivatives and the Clifford bundle formalism used in this paper. Moreover, we comment in Appendix B on some analogies (and main differences) between our results to the ones obtained long ago by Bergmann and Kommar which are reviewed and briefly criticized. © 2012 American Institute of Physics.1483277295Cons. Nac. Desenvolv. Cient. Tecnol. (CNPq),Coordenacao Aperfeicoamento Pessoal Nivel Super. (CAPES),Fund. Amparo Pesqui. 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