Skip to main content
Log in

About a forty years old conjecture by P. Erdős

  • Conferenze
  • Published:
Rendiconti del Seminario Matematico e Fisico di Milano Aims and scope Submit manuscript

Abstract

In connection with a characterization ofc logn within the class of additive arithmetic functions, i.e. such thatf (mn)=f(m)+f(n), which has been conjectured by P. Erdős in 1946 and is still unproved, we outline some subsequent researches involving various tools and standpoints, and we report some expressive results either lying close to that conjecture or revealing a similar spirit.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Similar content being viewed by others

References

  • [Ba]S. Banach,Théorie des opérations linéaires Warszawa, 1932.

  • [Bu1]R.C. Buck,The measure theoretic approach to density, Amer. J. of Math.,68 (1946) 560–580.

    Article  MathSciNet  MATH  Google Scholar 

  • [Bu2]E.F. Buck andR.C. Buck,A note on finitely additive measures, Amer. J. of Math.,69 (1947) 413–420.

    Article  MathSciNet  MATH  Google Scholar 

  • [Er1]P. Erdős,On the distribution function of additive functions, Ann. of Math.,47 (1946) 1–20.

    Article  MathSciNet  MATH  Google Scholar 

  • [Er2]P. Erdős,On the distribution function of additive arithmetical functions and some related problems, Rend. Sem. Mat. Fis. Milano,27 (1958) 45–49.

    Article  MathSciNet  MATH  Google Scholar 

  • [Hy]D.H. Hyers,On the stability of the linear functional equation, Proc. Nat. Acad. Sci. USA,27 (1941) 222–224.

    Article  MathSciNet  MATH  Google Scholar 

  • [Ma]E. Mate,On a problem of P. Erdős, Acta Sci. Math. (Szeged),30 (1969) 301–304.

    MathSciNet  MATH  Google Scholar 

  • [Re]S.A. Renyi,On a theorem of P. Erdős and its applications in information theory, Mathematica,1 (24) (1959) 341–344.

    MathSciNet  MATH  Google Scholar 

  • [Sk1]F. Skof,Un criterio di completa additività per le funzioni aritmetiche riguardante successioni di densità irregolare, Accad. Naz. Lincei, Rend. Cl. Sci.Fis. Mat.Nat.,48 (1970) 1–4.

    MATH  Google Scholar 

  • [Sk2]F. Skof,Proprietà di densità delle successioni e forma c logn delle funzioni aritmetiche additive, Atti Accad. Sci. Torino,111 (1976/77) 503–510.

    MathSciNet  MATH  Google Scholar 

  • [Sk3]F. Skof,Qualche osservazione sulle successioni di interi aventi densità 1 oppure 0, Rend. Sem. Mat. Univ. Polit. Torino,35 (1976/77) 391–395.

    MathSciNet  MATH  Google Scholar 

  • [Sk4]F. Skof,Densità, misura, equidistribuzione delle successioni di interi e proprietà delle funzioni aritmetiche additive, Rend. di Mat., Roma (4)10 (1977) 607–616.

    MathSciNet  MATH  Google Scholar 

  • [Sk5]F. Skof,Proprietà locali e approssimazione di operatori, Rend. Sem. Mat. Fis Milano,53 (1983) 113–129.

    Article  MathSciNet  Google Scholar 

  • [Sk6]F. Skof,Sulle funzioni aritmetiche δ-additive, Atti Accad. Sci. Torino,122 (1988) 297–306.

    Google Scholar 

  • [Sk7]F. Skof On existence of approximately additive extensions or quasi-extensions of δ-additive functions on unbounded restricted domains Commun. at the 34th ISFE, Wisla-Jawornik, Poland (1996).

  • [Sk8]F. Skof,Arithmetic functions close to the logarithm on some restricted domains, Commun. at the 36th ISFE, Brno (1998).

  • [Wi1]E. Wirsing,A characterization of logn as an additive arithmetic function, Symp. Math. IV, 45–57, Academic Press, London/NewYork, 1970.

    Google Scholar 

  • [Wi2]E. Wirsing Recent progress in analytic number theory, Vol. 2, 231–280, Academic Press, London, 1981.

    Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to Fulvia Skof.

Additional information

Conferenza tenuta il giorno 30 Novembre 1998

Lavoro eseguito nell’ambito del Gruppo G.N.A.F.A. del C.N.R. e con il contributo del Ministero dell’ Università e della Ricerca Scientifica e Tecnologica (ex 40%).

Rights and permissions

Reprints and permissions

About this article

Cite this article

Skof, F. About a forty years old conjecture by P. Erdős. Seminario Mat. e. Fis. di Milano 68, 217–229 (1998). https://doi.org/10.1007/BF02925837

Download citation

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF02925837

Keywords

Navigation