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Nowhere solvable homogeneous partial differential equations. (English) Zbl 0527.35015


MSC:

35F05 Linear first-order PDEs
47F05 General theory of partial differential operators
35B20 Perturbations in context of PDEs
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References:

[1] Howard Jacobowitz and François Trèves, Nonrealizable CR structures, Invent. Math. 66 (1982), no. 2, 231 – 249. · Zbl 0487.32015 · doi:10.1007/BF01389393
[2] Howard Jacobowitz and François Trèves, Aberrant CR structures, Hokkaido Math. J. 12 (1983), no. 3, 276 – 292. · Zbl 0564.32010 · doi:10.14492/hokmj/1470081006
[3] Hans Lewy, An example of a smooth linear partial differential equation without solution, Ann. of Math. (2) 66 (1957), 155 – 158. · Zbl 0078.08104 · doi:10.2307/1970121
[4] L. Nirenberg, A certain problem of Hans Lewy, Uspehi Mat. Nauk 29 (1974), no. 2(176), 241 – 251 (Russian). Translated from the English by Ju. V. Egorov; Collection of articles dedicated to the memory of Ivan Georgievič Petrovskiĭ (1901 – 1973), I.
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