Results 51 to 60 of about 5,935,258 (364)

An Adaptive Management Model for Brown Bears in Hokkaido: Based on Total Population and the Number of Nuisance Bears

open access: yesPopulation Ecology, EarlyView.
Bear management changes management actions according to the horizontal axis of the population size and the vertical axis of the number of nuisance bears. Aiming for the target population size of Ntar, Actions I and II protect the bears, and Action IV reduces the population.
Hiroyuki Matsuda   +5 more
wiley   +1 more source

Stability of Quadratic Functional Equations via the Fixed Point and Direct Method

open access: yesJournal of Inequalities and Applications, 2010
Cădariu and Radu applied the fixed point theorem to prove the stability theorem of Cauchy and Jensen functional equations. In this paper, we prove the generalized Hyers-Ulam stability via the fixed point method and investigate new theorems via ...
Juri Lee, Eunyoung Son, Hark-Mahn Kim
doaj   +2 more sources

Stability of additivity and fixed point methods [PDF]

open access: yesFixed Point Theory and Applications, 2013
We show that the fixed point methods allow to investigate Ulam’s type stability of additivity quite efficiently and precisely. Using them we generalize, extend and complement some earlier classical results concerning the stability of the additive Cauchy equation.
openaire   +2 more sources

Speciation Through the Lens of Population Dynamics: A Theoretical Primer on How Small and Large Populations Diverge

open access: yesPopulation Ecology, EarlyView.
Population size and dynamics fundamentally shape speciation by influencing genetic drift, founder events, and adaptive potential. Small populations may speciate rapidly due to stronger drift, whereas large populations harbor more genetic diversity, which can alter divergence trajectories. We highlight theoretical models that incorporate population size
Ryo Yamaguchi   +3 more
wiley   +1 more source

Approximation of homomorphisms and derivations on non-Archimedean random Lie C∗-algebras via fixed point method

open access: yesJournal of Inequalities and Applications, 2012
In this paper, using fixed point methods, we prove the generalized Hyers-Ulam stability of random homomorphisms in random C∗-algebras and random Lie C∗-algebras and of derivations on non-Archimedean random C∗-algebras and non-Archimedean random Lie C ...
J. Kang, R. Saadati
semanticscholar   +2 more sources

An Alternative Regularization Method for Equilibrium Problems and Fixed Point of Nonexpansive Mappings

open access: yesJournal of Applied Mathematics, 2012
We introduce a new regularization iterative algorithm for equilibrium and fixed point problems of nonexpansive mapping. Then, we prove a strong convergence theorem for nonexpansive mappings to solve a unique solution of the variational inequality and the
Shuo Sun
doaj   +1 more source

Classical and Fixed Point Approach to the Stability Analysis of a Bilateral Symmetric Additive Functional Equation in Fuzzy and Random Normed Spaces

open access: yesMathematics, 2023
In this article, a new kind of bilateral symmetric additive type functional equation is introduced. One of the interesting characteristics of the equation is the fact that it is ideal for investigating the Ulam–Hyers stabilities in two prominent normed ...
P. Agilan   +3 more
doaj   +1 more source

Evolutionary interplay between viruses and R‐loops

open access: yesFEBS Letters, EarlyView.
Viruses interact with specialized nucleic acid structures called R‐loops to influence host transcription, epigenetic states, latency, and immune evasion. This Perspective examines the roles of R‐loops in viral replication, integration, and silencing, and how viruses co‐opt or avoid these structures.
Zsolt Karányi   +4 more
wiley   +1 more source

Transfinite methods in metric fixed‐point theory [PDF]

open access: yesAbstract and Applied Analysis, 2003
This is a brief survey of the use of transfinite induction in metric fixed‐point theory. Among the results discussed in some detail is the author′s 1989 result on directionally nonexpansive mappings (which is somewhat sharpened), a result of Kulesza and Lim giving conditions when countable compactness implies compactness, a recent inwardness result for
openaire   +3 more sources

On a system of monotone variational inclusion problems with fixed-point constraint

open access: yes, 2022
In this paper, we study the problem of finding the solution of the system of monotone variational inclusion problems recently introduced by Chang et al.
T. O. Alakoya   +3 more
semanticscholar   +1 more source

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