Geodesic
An identity for formal derivatives in a commutative algebra
Ulrich Abel1
1 Department MND Technische Hochschule Mittelhessen Wilhelm-Leuschner-Straße 13 61169 Friedberg, Germany
Annales Polonici Mathematici, Tome 119 (2017) no. 3, pp. 195-202 Cet article a éte moissonné depuis la source Institute of Mathematics Polish Academy of Sciences

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We present a generalization of an identity for formal derivatives in a commutative algebra. Special cases of the formula play a key role in deriving Markov type inequalities. In addition we give a short proof of the specialization to ordinary higher order derivatives and list some of its applications.
DOI : 10.4064/ap170324-11-9
Keywords: present generalization identity formal derivatives commutative algebra special cases formula play key role deriving markov type inequalities addition short proof specialization ordinary higher order derivatives list its applications

Ulrich Abel 1

1 Department MND Technische Hochschule Mittelhessen Wilhelm-Leuschner-Straße 13 61169 Friedberg, Germany 
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Ulrich Abel. An identity for formal derivatives in a commutative algebra. Annales Polonici Mathematici, Tome 119 (2017) no. 3, pp. 195-202. doi: 10.4064/ap170324-11-9

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