Abstract
A K-quasiderivation is a map which satisfies both the Product Rule and the Chain Rule. In this paper, we discuss several interesting families of K-quasiderivations. We first classify all K-quasiderivations on the ring of polynomials in one variable over an arbitrary commutative ring R with unity, thereby extending a previous result. In particular, we show that any such K-quasiderivation must be linear over R. We then discuss two previously undiscovered collections of (mostly) nonlinear K-quasiderivations on the set of functions defined on some subset of a field. Over the reals, our constructions yield a one-parameter family of K-quasiderivations which includes the ordinary derivative as a special case.
Similar content being viewed by others
References
Adler I., Composition rings, Duke Math. J., 1962, 29(4), 607–623
Barbeau E.J., Remarks on an arithmetic derivative, Canad. Math. Bull., 1961, 4, 117–122
Emmons C., Krebs M., Shaheen A., How to differentiate an integer modulo n, College Math. J., 2009, 40(5), 345–353
Fechter T., Exploring the Derivative of a Natural Number Using the Logarithmic Derivative, Senior Capstone thesis, Pacific University, 2007
Gleason A.M., Greenwood R.E., Kelly L.M. (Eds.), The William Lowell Putnam Mathematical Competition. Problems and Solutions: 1938–1964, Mathematical Association of America, Washington, 1980
Kautschitsch H., Müller W.B., Über die Kettenregel in A [x 1,...x n], A (x 1...x n) und A [[x 1,...x n]], In: Contributions to General Algebra, 1, Klagenfurt, May 25–28, 1978, Johannes Heyn, Klagenfurt, 1979, 131–136
Lausch H., Nöbauer W., Algebra of Polynomials, North-Holland Math. Library, 5, North-Holland, Amsterdam-London, 1973
Menger K., General algebra of analysis, Reports of Mathematical Colloquium, 1946, 7, 46–60
Müller W., Eindeutige Abbildungen mit Summen-, Produkt- und Kettenregel im Polynomring, Monatsh. Math., 1969, 73(4), 354–367
Müller W.B., The algebra of derivations, An. Acad. Brasil. Ciênc., 1973, 45, 339–343 (in Spanish)
Müller W.B., Differentiations-Kompositionsringe, Acta Sci. Math. (Szeged), 1978, 40(1–2), 157–161
Müller W.B., Über die Kettenregel in Fastringen, Abh. Math. Sem. Univ. Hamburg, 1979, 48(1), 108–111
Nöbauer W., Derivationssysteme mit Kettenregel, Monatsh. Math., 1963, 67(1), 36–49
Stay M., Generalized number derivatives, J. Integer Seq., 2005, 8(1), #05.1.4
Ufnarovski V., Ahlander B., How to differentiate a number, J. Integer Seq., 2003, 6(3), #03.3.4
Westrick L., Investigations of the number derivative, preprint available at http://www.plouffe.fr/simon/OEIS/archive_in_pdf/intmain.pdf
Author information
Authors and Affiliations
Corresponding author
About this article
Cite this article
Emmons, C., Krebs, M. & Shaheen, A. K-quasiderivations. centr.eur.j.math. 10, 824–834 (2012). https://doi.org/10.2478/s11533-011-0140-x
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.2478/s11533-011-0140-x