PUBLICATIONS
by
Tevian Dray



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BOOKS GSR GSR

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JOURNAL ARTICLES
Relativity
  1. On the Regularity of Ernst's Generalized C-Metric,    (published abstract)
       Tevian Dray and Martin Walker, Lett. Math. Phys. 4, 15–18 (1980).
  2. On the Existence of Solutions to Einstein's Equation with Non-Zero Bondi News,    (published abstract)
       Abhay Ashtekar and Tevian Dray, Commun. Math. Phys. 79, 581–589 (1981).
  3. On the Asymptotic Flatness of the C-Metrics at Spatial Infinity,    (published abstract)
       Tevian Dray, Gen. Rel. Grav. 14, 109–112 (1982).
  4. Particle Creation with Finite Energy Density,    (published abstract)
       Tevian Dray, Jürgen Renn, and Donald C. Salisbury, Lett. Math. Phys. 7, 145–153 (1983).
  5. The Normal-Form (In)Dependence of the Adiabatic Particle Definitions,    (published abstract)
       Tevian Dray and Jürgen Renn, Gen. Rel. Grav. 16, 325–332 (1984).
  6. Space-Times with a Stable Adiabatic Vacuum,    (published abstract)
       Tevian Dray and Jürgen Renn, Gen. Rel. Grav. 16, 453–458 (1984).
    (This essay received Honorable Mention in the 1983 competition of the Gravity Research Foundation.)
  7. Angular Momentum at Null Infinity,    (published abstract)
       Tevian Dray and Michael Streubel, Class. Quantum Grav. 1, 15–26 (1984).
  8. The Relationship Between Monopole Harmonics and Spin-Weighted Spherical Harmonics,
       Tevian Dray, J. Math. Phys. 26, 1030–1033 (1985).    (published abstract)
  9. Momentum Flux at Null Infinity,    (published abstract)
       Tevian Dray, Class. Quantum Grav. 2, L7–L10 (1985).
  10. The Gravitational Shock Wave of a Massless Particle,    (published abstract)
       Tevian Dray and Gerard 't Hooft, Nucl. Phys. B253, 173–188 (1985).
    (This article was later reprinted in Under the Spell of the Gauge Principle, Gerard 't Hooft, World Scientific, Singapore, 1994, 629–644.)
  11. The Effect of Spherical Shells of Matter on the Schwarzschild Black Hole,    (published abstract)
       Tevian Dray and Gerard 't Hooft, Commun. Math. Phys. 99, 613–625 (1985).
  12. A Unified Treatment of Wigner D Functions, Spin-Weighted Spherical Harmonics, and Monopole Harmonics,
       Tevian Dray, J. Math. Phys. 27, 781–792 (1986).    (published abstract)
  13. The Gravitational Effect of Colliding Planar Shells of Matter,    (published abstract)
       Tevian Dray and Gerard 't Hooft, Class. Quantum Grav. 3, 825–840 (1986).
  14. Junction Conditions for Null Hypersurfaces,    (published abstract)
       C J S Clarke and Tevian Dray, Class. Quantum Grav. 4, 265–275 (1987).
  15. The Trousers Problem Revisited,
       Corinne A Manogue, Tevian Dray, and Ed Copeland, Pramana - J. Phys. 30, 279–292 (1988).
  16. Bogolubov Transformations and Completeness,    (published abstract)
       Tevian Dray and Corinne A. Manogue, Gen. Rel. Grav. 20, 957–965 (1988).
  17. Duality and Conformal Structure,    (published abstract)
       Tevian Dray, Ravi Kulkarni, and Joseph Samuel, J. Math. Phys. 30, 1306–1309 (1989).
  18. Conserved Quantities from Piecewise Killing Vectors,    (published abstract)
       Tevian Dray and T. Padmanabhan, Gen. Rel. Grav. 21, 741–745 (1989).
  19. Glueing Reissner-Nordstrøm Spacetimes Together Along Charged Shells of Matter,    (published abstract)
       Tevian Dray and Pankaj Joshi, Class. Quantum Grav. 7, 41–49 (1990).
  20. The Causal Boundary of the Trousers Space,    (published abstract)
       Steven G. Harris and Tevian Dray, Class. Quantum Grav. 7, 149–161 (1990).
  21. The Twin Paradox Revisited,    (published abstract)
       Tevian Dray, Am. J. Phys. 58, 822–825 (1990).
  22. Bouncing Shells,    (published abstract)
       Tevian Dray, Class. Quantum Grav. 7, L131–L134 (1990).
  23. Particle Production from Signature Change,    (published abstract)
       Tevian Dray, Corinne A. Manogue, and Robin W. Tucker, Gen. Rel. Grav. 23, 967–971 (1991).
    (This essay received Honorable Mention in the 1991 competition of the Gravity Research Foundation.)
  24. Finding Isometry Groups in Theory and Practice,    (published abstract)
       Marcelo E. Araujo, Tevian Dray, and James E. F. Skea, Gen. Rel. Grav. 24, 477–500 (1992).
  25. Scalar Field Quantization in Stationary, Non-Static Spacetimes,    (published abstract)
       Tevian Dray, Ravi Kulkarni, and Corinne A. Manogue, Gen. Rel. Grav. 24, 1255–1266 (1992).
  26. The Scalar Field Equation in the Presence of Signature Change,    (published abstract)
       Tevian Dray, Corinne A. Manogue, and Robin W. Tucker, Phys. Rev. D48, 2587–2590 (1993).
  27. Failure of Standard Conservation Laws at a Classical Change of Signature,
       Charles Hellaby and Tevian Dray, Phys. Rev. D49, 5096–5104 (1994).    (published abstract)
  28. The Patchwork Divergence Theorem,    (published abstract)
       Tevian Dray and Charles Hellaby, J. Math. Phys. 35, 5922–5929 (1994).
  29. Parametric Manifolds I: Extrinsic Approach,    (published abstract)
       Stuart Boersma and Tevian Dray, J. Math. Phys. 36, 1378–1393 (1995).
  30. Parametric Manifolds II: Intrinsic Approach,    (published abstract)
       Stuart Boersma and Tevian Dray, J. Math. Phys. 36, 1394–1403 (1995).
  31. Slicing, Threading & Parametric Manifolds,    (published abstract)
       Stuart Boersma and Tevian Dray, Gen. Rel. Grav. 27, 319–339 (1995).
  32. Boundary Conditions for the Scalar Field in the Presence of Signature Change,    (published abstract)
       Tevian Dray, Corinne A. Manogue, and Robin W. Tucker, Class. Quantum Grav. 12, 2767–2777 (1995).
  33. Reply Comment: Comparison of Approaches to Classical Signature Change,
       Charles Hellaby and Tevian Dray, Phys. Rev. D52, 7333–7339 (1995).    (published abstract)
  34. Detecting the Rotating Quantum Vacuum,    (published abstract)
       Paul C. W. Davies, Tevian Dray, Corinne A. Manogue, Phys. Rev. D53, 4382–4387 (1996).
  35. Comment on `Smooth and Discontinuous Signature Type Change in General Relativity',    (published abstract)
       Tevian Dray and Charles Hellaby, Gen. Rel. Grav. 28, 1401–1408 (1996).
  36. The Construction of Spinor Fields on Manifolds with Smooth Degenerate Metrics,    (published abstract)
       Jörg Schray, Tevian Dray, Corinne A. Manogue, Robin W. Tucker, and Charles Wang,
       J. Math. Phys. 37, 3882–3896 (1996).
  37. Einstein's Equations in the Presence of Signature Change,    (published abstract)
       Tevian Dray, J. Math. Phys. 37, 5627–5636 (1996).
  38. Gravity and Signature Change,    (published abstract)
       Tevian Dray, George Ellis, Charles Hellaby, and Corinne A. Manogue, Gen. Rel. Grav. 29, 591–597 (1997).
  39. Tensor Distributions in the Presence of Degenerate Metrics,    (published abstract)
       Tevian Dray, Int. J. Mod. Phys. D6, 717–740 (1997).
  40. Topology Change: The Regulated Trousers and Tin Woodman Models ,
       Tevian Dray, C. A. Hurst, and Corinne A. Manogue, Comm. Math. Theoret. Phys. 1, 24–49, (1998).
  41. A New Look at the Ashtekar-Magnon Energy Condition,    (published abstract)
       Jim Fischer and Tevian Dray, Gen. Rel. Grav. 31, 511–526 (1999).
  42. Tensor Distributions on Signature-Changing Space-Times,    (published abstract)
       David Hartley, Robin W. Tucker, Philip Tuckey, and Tevian Dray, Gen. Rel. Grav. 32, 491–504 (2000).
  43. Distributional Modes For Scalar Field Quantization,    (published abstract)
       Al Agnew and Tevian Dray, Gen. Rel. Grav. 33, 429–453 (2001).
  44. Note on Signature Change and Colombeau Theory,    (published abstract)
       Tevian Dray, George Ellis, and Charles Hellaby, Gen. Rel. Grav. 33, 1041–1046 (2001).
  45. The Geometry of Special Relativity, (invited paper)
       Tevian Dray, Physics Teacher (India) 46, 144–150 (2004).
  46. Tensor Generalizations of Affine Symmetry Vectors,    (published abstract)
       Samuel A. Cook and Tevian Dray, J. Math. Phys. 50, 122506 (2009).
  47. The Effect of Negative-Energy Shells on the Schwarzschild Black Hole,    (published abstract)
       Jeffrey S. Hazboun and Tevian Dray, Gen. Rel. Grav. 42, 1457–1467 (2010).
  48. Covariant Derivatives on Null Submanifolds,    (published abstract)
       Don Hickethier and Tevian Dray, Gen. Rel. Grav. 44, 225–238 (2012).
  49. Using Three-Dimensional Spacetime Diagrams in Special Relativity,    (published abstract)
       Tevian Dray, Am. J. Phys. 81, 593--596 (2013).    (enhanced figures)
  50. Toy model studies of tuning and typicality with an eye toward cosmology,    (published abstract)
       Aaron Hernley, Andreas Albrecht, and Tevian Dray, Phys. Rev. D87, 123515 (2013).
  51. The Geometry of Relativity,    (published abstract)
       Tevian Dray, Am. J. Phys. 85, 683–691 (2016).
  52. Reflections on the Energy of Black Holes,
       Tevian Dray and Carlo Rovelli, Int. J. Mod. Phys. D28, 1944004 (2019).

    Octonions

  53. The Octonionic Eigenvalue Problem,    (published abstract)
       Tevian Dray and Corinne A. Manogue, Adv. Appl. Clifford Algebras 8, 341–364 (1998).
  54. Finding Octonionic Eigenvectors Using Mathematica, (invited paper)
       Tevian Dray and Corinne A. Manogue, Comput. Phys. Comm. 115, 536–547 (1998).
  55. Dimensional Reduction, (invited paper)    (published abstract)
       Corinne A. Manogue and Tevian Dray, Mod. Phys. Lett. A14, 99–103 (1999).
    (This essay received Honorable Mention in the 1998 competition of the Gravity Research Foundation.)
  56. Octonionic Möbius Transformations,    (published abstract)
       Corinne A. Manogue and Tevian Dray, Mod. Phys. Lett. A14, 1243–1255 (1999).
  57. The Exceptional Jordan Eigenvalue Problem, (invited paper)    (published abstract)
       Tevian Dray and Corinne A. Manogue, Internat. J. Theoret. Phys. 38, 2901–2916 (1999).
  58. Octonionic Hermitian Matrices with Non-Real Eigenvalues,    (published abstract)
       Tevian Dray, Jason Janesky, and Corinne A. Manogue, Adv. Appl. Clifford Algebras 10, 193–216 (2000).
  59. Orthonormal Eigenbases over the Octonions,
       Tevian Dray, Corinne A. Manogue, and Susumu Okubo, Algebras Groups Geom. 19, 163–180 (2002).
  60. Visualizing Lie Subalgebras using Root and Weight Diagrams,    (published version)
       Aaron Wangberg and Tevian Dray, Loci 2, February 2009.
  61. Finding 3×3 Hermitian Matrices over the Octonions with Imaginary Eigenvalues,    (published abstract)
       Henry Gillow-Wiles and Tevian Dray, Adv. Appl. Clifford Algebras 20, 247–254 (2010).
  62. E6, the Group: The structure of SL(3,O),    (published abstract)
       Aaron Wangberg and Tevian Dray, J. Algebra Appl. 14, 1550091 (2015).
  63. Discovering Real Lie Subalgebras of e6 using Cartan Decompositions,    (published abstract)
       Aaron Wangberg and Tevian Dray, J. Math. Phys. 54, 081703 (2013).
  64. Division Algebra Representations of SO(4,2),    (published abstract)
       Joshua Kincaid and Tevian Dray, Mod. Phys. Lett. A29, 1450128 (2014).
  65. The Magic Square of Lie Groups: The 2×2 case,    (published abstract)
       Tevian Dray, John Huerta, and Joshua Kincaid, Lett. Math. Phys. 104, 1445–1468 (2014).
  66. Classifying Linear Operators over the Octonions,
       Alex Putnam and Tevian Dray, Involve 12, 117–124 (2019).
  67. Subalgebras of the Split Octonions,
       Lida Bentz and Tevian Dray, Adv. Appl. Clifford Algebras 28, 40 (2018).
  68. Octions: An E8 description of the Standard Model,    (published abstract)
       Corinne A. Manogue, Tevian Dray, and Robert A. Wilson, J. Math. Phys. 63, 081703 (2022).
  69. An octonionic construction of E8 and the Lie algebra magic square ,    (published abstract)
       Robert A. Wilson, Tevian Dray, and Corinne A. Manogue, Innov. Incidence Geom. 20, 611–634 (2023).
  70. A New Division Algebra Representation of E6,
       Tevian Dray, Corinne A. Manogue, and Robert A. Wilson, J. Math. Phys. (accepted).
  71. A New Division Algebra Representation of E7,
       Tevian Dray, Corinne A. Manogue, and Robert A. Wilson, J. Math. Phys. (accepted).

    Vector Calculus

  72. The Vector Calculus Gap,    (published abstract)
       Tevian Dray and Corinne A. Manogue, PRIMUS  9, 21–28 (1999).
  73. Electromagnetic Conic Sections,    (published abstract)
       Tevian Dray and Corinne A. Manogue, Am. J. Phys. 70, 1129–1135 (2002).
  74. Spherical Coordinates,
       Tevian Dray and Corinne A. Manogue, College Math. J. 34, 168–169 (2003).
  75. The Murder Mystery Method for Determining Whether a Vector Field is Conservative,
       Tevian Dray and Corinne A. Manogue, College Math. J. 34, 238–241 (2003).
  76. Using Differentials to Bridge the Vector Calculus Gap,
       Tevian Dray and Corinne A. Manogue, College Math. J. 34, 283–290 (2003).
  77. Why is Ampère's Law So Hard?,    (published abstract)
       Corinne A. Manogue, Kerry Browne, Tevian Dray, and Barbara Edwards, Am. J. Phys. 74, 344–350 (2006).
  78. The Geometry of the Dot and Cross Products,    (MathML version; published version)
       Tevian Dray and Corinne A. Manogue, JOMA 6, June 2006.
  79. Finding Geodesics,
       Stuart Boersma, Tevian Dray, and Stan Wagon, Math Horizons, September 2009, 2.
  80. Putting differentials back into calculus,
       Tevian Dray and Corinne A. Manogue, College Math. J. 41, 90–100 (2010).
  81. Using differentials to differentiate trigonometric and exponential functions,
       Tevian Dray, College Math. J. 44, 17–23 (2013).
  82. Using embedding diagrams to visualize curvature,
       Tevian Dray, Amer. Math. Monthly 127, 867–879 (2020).

    Science Education

  83. Dare to Compare? Introduction to Using Comparison Charts in the Mathematics Classroom,
       David Damcke, Tevian Dray, Maria Fung, Dianne Hart, and Lyn Riverstone, The Oregon Mathematics Teacher (TOMT), May/June 2008, 8–10.
  84. Partial Derivative Games in Thermodynamics: A Cognitive Task Analysis,
       Mary Bridget Kustusch, David Roundy, Tevian Dray, and Corinne A. Manogue, Phys. Rev. ST Phys. Educ. Res. 10, 010101 (2014).
  85. Experts' understanding of partial derivatives using the Partial Derivative Machine,
       David Roundy, Eric Weber, Tevian Dray, Rabindra R. Bajaracharya, Allison Dorko, Emily M. Smith, and Corinne A. Manogue, Phys. Rev. ST Phys. Educ. Res. 11, 020126 (2015).
  86. Interpreting Derivatives,
       Tevian Dray, Elizabeth Gire, Mary Bridget Kustusch, Corinne A. Manogue, and David Roundy, PRIMUS  29, 830–850 (2019; invited paper).
  87. Structural features of external representations and implications for physics instruction,
       Elizabeth Gire, Edward Price, Corinne Manogue, Charles J. De Leone, and Tevian Dray, Phys. Rev. Phys. Educ. Res. (submitted).
  88. Measuring the derivative using surfaces and measurement tools,    (published abstract)
       Aaron Wangberg, Tevian Dray, and Elizabeth Gire, Teach. Math. Appl. 41, 110–124 (2022).
  89. Vector Line Integrals in Mathematics and Physics,    (published abstract)
       Tevian Dray and Corinne A. Manogue, IJRUME 9, 92–117 (2023; invited paper).

    Other

  90. Spell it Nordström,    (published abstract)
       Dieter Brill and Tevian Dray, Gen. Rel. Grav. 25, 435–436 (1993).
  91. Taxicab Angles and Trigonometry,    (PDF version)
       Kevin Thompson and Tevian Dray, Pi Mu Epsilon Journal 11, 87–96 (2000).
  92. Using Euclidean Tools to Construct Elliptic Objects in the Klein Disk,
       Genevieve Connolly and Tevian Dray, Pi Mu Epsilon Journal, 15, 461–475 (2023).
  93. Hyperbolic Lunes,
       Tevian Dray, College Math. J. 54, 308–315 (2023).

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BOOK CHAPTERS

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CONFERENCE PROCEEDINGS

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TECHNICAL REPORTS & PREPRINTS

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ABSTRACTS

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STUDY GUIDES

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MISCELLANEOUS

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Essays:

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BOOK & SOFTWARE REVIEWS

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