Zobrazeno 1 - 8
of 8
pro vyhledávání: '"Gabriella Hajdu"'
Publikováno v:
Mathematics, Vol 11, Iss 18, p 3992 (2023)
An important concern with regard to the ensembles of algorithms is that using the individually optimal parameter settings of the members does not necessarily maximize the performance of the ensemble itself. In this paper, we propose a novel evaluatio
Externí odkaz:
https://doaj.org/article/4c6b60adb365400c90d93e3dfd9a593c
Autor:
Gabriella Hajdu, Lajos Hajdu
Publikováno v:
Aequationes mathematicae. 75:65-74
We consider Hosszu’s famous functional equation f(x) + f(y) = f(xy) + f(x + y − xy). We completely describe the set of functions $$f : R \rightarrow {\mathbb{A}}$$ satisfying this equation, where R is the set of the Gaussian or Eisenstein integer
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1e869405f6a16a7e0d2d66f500110e26
https://doi.org/10.1007/s00010-007-2883-9
https://doi.org/10.1007/s00010-007-2883-9
Autor:
Gabriella Hajdu, Lajos Hajdu
Publikováno v:
Acta Mathematica Hungarica. 112:143-155
We show that a well-known identity of Ramanujan admits only a bounded number of solutions over general finitely generated domains. The bound is explicit and uniform in the sense that it depends only on the dimensions of the domains involved. Our meth
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::924cf5ecb3ffb97d29cf8931d700a0e9
https://doi.org/10.1007/s10474-006-0070-4
https://doi.org/10.1007/s10474-006-0070-4
Autor:
Gabriella Hajdu, Zoltán Daróczy
Publikováno v:
Aequationes mathematicae. 69:58-67
The aim of this paper is to prove an extension theorem for weighted quasi-arithmetic means.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3537bdc75338d6e93d38eb7573c2d11f
https://doi.org/10.1007/s00010-004-2746-6
https://doi.org/10.1007/s00010-004-2746-6
Publikováno v:
Colloquium Mathematicum. 95:153-161
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1d353ae2fbbc3d291be43eb99d820b53
https://doi.org/10.4064/cm95-2-1
https://doi.org/10.4064/cm95-2-1
Autor:
Zoltán Daróczy, Gabriella Hajdu
Publikováno v:
Acta Mathematica Hungarica. 82:1-9
In this paper our aim is to determine all the solutions of the functional equation f(a + b + c) + f(b + c + d) + f(a - d) = f(a + b + d) + f(a + c + d) + f(b - c), where a, b, c, d ∈ Zsatisfy ad = bc. This equation is a generalization of one of the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::965f888c9d8c082f79062a289afd1628
https://doi.org/10.1023/a:1026465016527
https://doi.org/10.1023/a:1026465016527
Autor:
Zoltán Daróczy, Gabriella Hajdu
Publikováno v:
Publicationes Mathematicae Debrecen. 53:281-291
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::79c69ff697d9a6fc1f95603a9af12c0f
https://doi.org/10.5486/pmd.1998.1942
https://doi.org/10.5486/pmd.1998.1942
Autor:
Gabriella Hajdu
Publikováno v:
Functional Equations — Results and Advances ISBN: 9781441952103
Let I ⊂ ℝ be an open interval, and CM(I) denote the set of all continuous and strictly monotonic real functions.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9b1786dd86baa6c588f644cfbafa6749
https://doi.org/10.1007/978-1-4757-5288-5_15
https://doi.org/10.1007/978-1-4757-5288-5_15
