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On First Order Partial Differential Operators on Bounded Regions of the Plane

✍ Scribed by Jürgen Friedrich


Publisher
John Wiley and Sons
Year
1987
Tongue
English
Weight
730 KB
Volume
131
Category
Article
ISSN
0025-584X

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## On degenerate boundary value problems for elliptic differential operators of second order in the plane and the index of degenerate pseudo-differential operators on a closed curve By JOHANNES ELSCHNER in Berlin (Eingegangen am 21.11. 1980)