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arXiv 1503.02148math.CA
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Hölderian函数分数变差的乘积定则

Product rules for the Fractional variation of Hölderian functions

Dimiter Prodanov

摘要:

分数变差被定义为函数的增量与其自变量的分数次幂的差商的极限。分数速度可以适用于表征Hölderian函数和非可微函数的导数的奇异行为。该手稿推导了分数变异的乘积规则。对应于整数阶导数进行了讨论。证明了对于Hölder函数,在一定条件下乘积规则偏离莱布尼茨规则。这种偏差由另一个量表示,分数协变。分数协变的基本代数性质的证明。

英文摘要:

Fractional variation is defined as the limit of the difference quotient of the increments of a function and its argument raised to a fractional power. Fractional velocity can be suitable for characterizing singular behavior of derivatives of Hölderian functions and non differentiable functions. The manuscript derives the product rules for fractional variation. Correspondence with integer-order derivatives is discussed. It is demonstrated that for Hölder functions under certain conditions the product rules deviates from the Leibniz rule. This deviation is expressed by another quantity, fractional co-variation. Basic algebraic properties of the fractional co-variation are demonstrated.

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