Results 61 to 70 of about 22,610 (167)

On the Solution of An Ill-Posed Boundary Value Problem for Second-Order Evolution Equations

Cumhuriyet Science Journal, 2019
Inthis work, we deal with an ill-posed boundary value problem formultidimensional second-order evolution equations with variable coefficients.By using the given data, we reduce the problem to a functional equation and weobtain a new representation for ...
İsmet Gölgeleyen, Mustafa Yıldız
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Some Best Proximity Theorems for Generalized Proximal $\mathcal{Z}$-Contraction Maps in $b$-Metric Spaces with Applications [PDF]

Sahand Communications in Mathematical Analysis
The simulation function and the notion of $\mathcal{Z}$-contraction concerning $\zeta$ which generalizes the Banach contraction principle and unifies several known types of contractions involving the combination of $d(fx, fy)$ and $d(x, y)$.
Dasari Ratna Babu
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Two general functional equations [PDF]

, 1925
W. Harold Wilson
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On the conformal mapping of curvilinear angles. The functional equation 𝜙[𝑓(𝑥)]=𝑎₁𝜙(𝑥) [PDF]

, 1917
G. A. Pfeiffer
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Hyperstability of a functional equation [PDF]

Acta Mathematica Hungarica, 2009
9 ...
openaire   +3 more sources

Existence of solutions of an integral equation of Chandrasekhar type in the theory of radiative transfer

Electronic Journal of Differential Equations, 2006
We give an existence theorem for some functional-integral equations which includes many key integral and functional equations that arise in nonlinear analysis and its applications.
Josefa Caballero, Angelo B. Mingarelli, Kishin Sadarangani   +2 more
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Inverse Ambiguous Functions and Automorphisms on Finite Groups

Annales Mathematicae Silesianae, 2019
If G is a finite group, then a bijective function f : G → G is inverse ambiguous if and only if f(x)−1 = f−1(x) for all x ∈ G. We give a precise description when a finite group admits an inverse ambiguous function and when a finite group admits an ...
Toborg Imke
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ON STABILILTY OF GENERALIZED ADDITIVE FUNCTIONAL EQUATIONS IN BANACH SPACE

Academy Journal of Science and Engineering
The stability problem arises when a functional equation is replaced by an inequality. When the equation admits a unique solution, we say that the equation is stable. In this paper, an Arunkumar-Agilan type additive functional equation is considered.
Yusuf Ibrahim, Aminu A. Usman
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Connected and disconnected plane sets and the functional equation 𝑓(𝑥)+𝑓(𝑦)=𝑓(𝑥+𝑦) [PDF]

, 1942
F. Burton Jones
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Comparison theorems for third-order neutral differential equations

Electronic Journal of Differential Equations, 2016
We establish comparison theorems for the oscillation of solutions to third-order neutral differential equations via linear ordinary and delay differential equations.
Zuzana Dosla, Petr Liska
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