On the stability of the quadratic functional equation in topological spaces.
Adam, M., Czerwik, S. (2007)
Banach Journal of Mathematical Analysis [electronic only]
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Displaying similar documents to “Erdős problem and quadratic equation.”
On the stability of the quadratic functional equation in topological spaces.
Approximately partial ternary quadratic derivations on Banach ternary algebras.
Javadian, A., Gordji, M.Eshaghi, Savadkouhi, M.Bavand (2011)
The Journal of Nonlinear Sciences and its Applications
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On the stability of some quadratic functional equation.
Adam, M. (2011)
The Journal of Nonlinear Sciences and its Applications
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Pairs of additive quadratic forms modulo one
R. C. Baker, S. Schäffer (1992)
Acta Arithmetica
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Quadratic functionals with a variable singular end point
Zuzana Došlá, PierLuigi Zezza (1992)
Commentationes Mathematicae Universitatis Carolinae
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In this paper we introduce the definition of coupled point with respect to a (scalar) quadratic functional on a noncompact interval. In terms of coupled points we prove necessary (and sufficient) conditions for the nonnegativity of these functionals.
Some new functional equations connected with characterization problems.
Lajkó, Károly, Mészáros, Fruzsina (2009)
Acta Mathematica Academiae Paedagogicae Nyí regyháziensis. New Series [electronic only]
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An elementary proof that almost all real numbers are normal.
Filip, Ferdinánd, Šustek, Jan (2010)
Acta Universitatis Sapientiae. Mathematica
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On the global solvability of the Cauchy problem for singular functional differential equations.
Kiguradze, I., Sokhadze, Z. (1997)
Georgian Mathematical Journal
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On the Chaplyghin method for generalized solutions of partial differential functional equations.
Czernous, Wojciech (2005)
Zeszyty Naukowe Uniwersytetu Jagiellońskiego. Universitatis Iagellonicae Acta Mathematica
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Stability results for some functional equations of quadratic-type.
Cădariu, Liviu, Radu, Viorel (2005)
Acta Universitatis Apulensis. Mathematics - Informatics
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