Abstract
Fueter and Polya proved that the only quadratic polynomials giving a bijection between N and N\(^{2}\) are the two Cantor polynomials. It is conjectured that there is no bijection from N\(^2\) onto N given by a polynomial of degree at least 3. A similar problem arises when the domain of the map is replaced by the set of integral points in some sector in R\(^2\). Rational sectors were considered by Nathanson and Stanton. Here, we study and solve the case of general irrational sectors. In fact, our method enables us also to recover the results on rational sectors and also answer a question posed by Nathanson.
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Acknowledgements
The authors acknowledge SERB, DST, Government of India, for awarding us VJR/2017/000006 under the VAJRA Faculty Scheme which enabled the second author to visit the first author when this work was done. They are very grateful to a referee who pointed out a crucial correction to Theorem 2; it can be stated only for odd p, but this suffices. They also thank both the referees for other suggestions and for drawing attention to a recent reference. Data sharing not applicable to this article as no data sets were generated or analyzed during the current theoretical study.
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Sury, B., Vsemirnov, M. Packing polynomials on irrational sectors. Res. number theory 8, 39 (2022). https://doi.org/10.1007/s40993-022-00338-5
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DOI: https://doi.org/10.1007/s40993-022-00338-5