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Les caractéristiques du premier ordre de l'équation aux dérivées partielles du second ordre(frac{{partial ^2 z}}{{partial x^2 }} = heta left( {x, y, z,frac{{partial z}}{{partial x}},frac{{partial z}}{{partial y}},frac{{partial ^2 z}}{{partial xcy}},frac{{partial ^2 z}}{{partial y^2 }}} ight))

✍ Scribed by C. Russyan


Publisher
Springer
Year
1923
Tongue
English
Weight
371 KB
Volume
90
Category
Article
ISSN
0025-5831

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