𝔖 Bobbio Scriptorium
✦   LIBER   ✦

On the stability of a system of functional equations characterizing generalized hyperbolic and trigonometric functions

✍ Scribed by Wolfgang Förg-Rob; Jens Schwaiger

Publisher
Springer
Year
1993
Tongue
English
Weight
485 KB
Volume
45
Category
Article
ISSN
0001-9054

No coin nor oath required. For personal study only.

📜 SIMILAR VOLUMES

Stability of a generalized trigonometric
Stability of a generalized trigonometric functional equation
✍ Janyarak Tongsomporn; Vichian Laohakosol; Charinthip Hengkrawit; Patanee Udomkav 📂 Article 📅 2010 🏛 Elsevier Science 🌐 English ⚖ 308 KB

The stability of the functional equation F (x + y) -G(xy) = 2H (x)K(y) over the domain of an abelian group G and the range of the complex field is investigated. Several related results extending a number of previously known ones, such as the ones dealing with the sine functional equation, the d'Alem

On the Stability of a Multiplicative Fun
On the Stability of a Multiplicative Functional Equation
✍ Soon-Mo Jung 📂 Article 📅 2001 🏛 Elsevier Science 🌐 English ⚖ 104 KB

In this paper, we will introduce a new multiplicative functional Eq. 1 and prove Ž . that the given equation is equivalent to the well known ''original'' one, f xy s Ž . Ž . Ž . f x f y . Moreover, we will investigate the stability problem of Eq. 1 in the sense of R. Ger.