## Study of a model in the theory of complexes of pseudodifferential operators.(English)Zbl 0354.35067

### MSC:

 35N10 Overdetermined systems of PDEs with variable coefficients 35N15 $$\overline\partial$$-Neumann problems and formal complexes in context of PDEs 35F05 Linear first-order PDEs 35S05 Pseudodifferential operators as generalizations of partial differential operators
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