Abstract
We shall deal here with a first order differential operators, in an open set Ω of ℝn, with complex valued coefficients:
where for , has real symbol Pj(x, ξ). Here Dj, as usual, stands for 1/i ∂/∂xj.
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© 1983 Springer Science+Business Media New York
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Zuily, C. (1983). First Order Differential Operators. In: Uniqueness and Non-Uniqueness in the Cauchy Problem. Progress in Mathematics, vol 33. Birkhäuser, Boston, MA. https://doi.org/10.1007/978-1-4899-6656-8_1
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DOI: https://doi.org/10.1007/978-1-4899-6656-8_1
Publisher Name: Birkhäuser, Boston, MA
Print ISBN: 978-0-8176-3121-5
Online ISBN: 978-1-4899-6656-8
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