Abstract
Differential geometry and differential algebra are two formalisms which can be used to study systems of partial differential equations. Cartan’s characters are numbers which naturally appear in the former case ; stairs of characteristic sets are pictures naturally drawn in the latter. In this paper, we clarify the relationship between these two notions. We prove also some invariant properties of characteristic sets.
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Boulier, F., Neut, S. (2001). Cartan’s Characters and Stairs of Characteristic Sets. In: Boztaş, S., Shparlinski, I.E. (eds) Applied Algebra, Algebraic Algorithms and Error-Correcting Codes. AAECC 2001. Lecture Notes in Computer Science, vol 2227. Springer, Berlin, Heidelberg. https://doi.org/10.1007/3-540-45624-4_38
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DOI: https://doi.org/10.1007/3-540-45624-4_38
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