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Theory of elastic waves

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Abstract

Wave processes in real crystals are described by covariant first-order partial differential equations.

Naimi and Khzardzhyan [1] have recently shown that the second-order equations

$$\Delta u^{(n)} - c_n^{ - 2} \partial ^2 u^{(n)} /\partial t^2 = 0$$

,

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Literature cited

  1. E. K. Naimi and S. M. Khzardzhyan, Izv. Vyssh. Uchebn. Zaved. Fiz., No. 9, 47 (1978); No. 11, 13 (1978).

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  2. L. D. Landau and E. M. Lifshitz, The Classical Theory of Fields, 4th ed., Pergamon Press, Oxford (1975).

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  3. N. N. Bogolyubov and D. V. Shirkov, Introduction to the Theory of Quantized Fields, Interscience (1959).

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  5. J. D. Eshelby, “Continuum theory of lattice defects,” Solid State Phys.,3, 79 (1956).

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Translated from Izvestiya Vysshikh Uchebnykh Zavedenii, Fizika, No. 12, pp. 6–9, December, 1980.

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Olemskoi, A.I. Theory of elastic waves. Soviet Physics Journal 23, 988–991 (1980). https://doi.org/10.1007/BF00896438

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  • DOI: https://doi.org/10.1007/BF00896438

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