Results 51 to 60 of about 2,534 (231)

Hyperstability of Cauchy–Jensen functional equations

Indagationes Mathematicae, 2016
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
EL-Fassi, Iz-iddine, Kabbaj, Samir, Charifi, Ahmed   +2 more
openaire   +1 more source

Angler Heterogeneity in Newfoundland and Labrador, Canada: Insights From Nearly Three Decades (1994–2022) of Atlantic Salmon Angler License and Activity Records

Fisheries Management and Ecology, Volume 33, Issue 1, Page 88-104, February 2026.
ABSTRACT Angler demographics and motivations are an important consideration to successful fisheries management. We examined 29 years of angler license and activity records from the recreational Atlantic salmon fishery in Newfoundland and Labrador, Canada to: (1) provide a contemporary evaluation of angler demographic trends; (2) evaluate age and ...
Travis E. Van Leeuwen, Michelle G. Fitzsimmons, J. Brian Dempson, Christopher W. White, Mark Young, Donald Keefe, Isabelle Schmelzer, Nicholas I. Kelly, Craig F. Purchase, Blair Adams, David Coté   +10 more
wiley   +1 more source

Hyperstability of Cauchy and Jensen functional equations in 2-normed spaces

Journal of Inequalities and Applications
In this article, with simple and short proofs without applying fixed point theorems, some hyperstability results corresponding to the functional equations of Cauchy and Jensen are presented in 2-normed spaces.
Abbas Najati, Yavar Khedmati Yengejeh, Kandhasamy Tamilvanan, Masho Jima Kabeto   +3 more
doaj   +1 more source

Performance Improvement of PMSG‐Based Wind Energy Systems via Sensorless FS‐Predictive Current Control With MRAS and MPPT‐OTC Integration

IET Electric Power Applications, Volume 20, Issue 1, January/December 2026.
This paper proposes a hybrid sensorless control strategy for a permanent magnet synchronous generator (PMSG)‐based wind energy conversion system (WECS). The approach integrates finite‐set predictive current control (FS‐PCC), a model reference adaptive system (MRAS) estimator and an optimal torque control maximum power point tracking (MPPT‐OTC) method ...
Hicham Sayhi, Amor Bourek, Abdelkarim Ammar, Ali Teta, Ahmed Chennana, Abdelaziz Rabehi, Mohamed Benghanem, Takele Ferede Agajie   +7 more
wiley   +1 more source

Stability of -Jordan Homomorphisms from a Normed Algebra to a Banach Algebra

Abstract and Applied Analysis, 2013
We establish the hyperstability of -Jordan homomorphisms from a normed algebra to a Banach algebra, and also we show that an -Jordan homomorphism between two commutative Banach algebras is an -ring homomorphism.
Yang-Hi Lee
doaj   +1 more source

Characterization, stability and hyperstability of multi-quadratic–cubic mappings

Journal of Inequalities and Applications, 2021
In this paper, we unify the system of functional equations defining a multi-quadratic–cubic mapping to a single equation. Applying a fixed point theorem, we study the generalized Hyers–Ulam stability of multi-quadratic–cubic mappings.
Abasalt Bodaghi, Ajda Fošner
doaj   +1 more source

On Asymptotic Behavior of a 2-Linear Functional Equation

Mathematics, 2022
In this paper, we deal with a 2-linear functional equation. The Hyers-Ulam stability of this functional equation is shown on some restricted unbounded domains, and the obtained results are applied to get several hyperstability consequences.
Jae-Hyeong Bae, Mohammad B. Moghimi, Abbas Najati, Batool Noori   +3 more
doaj   +1 more source

Mystery of the Disappearing Dogfish: Transboundary Analyses Reveal Steep Population Declines Across the Northeast Pacific With Little Evidence for Regional Redistribution

Fish and Fisheries, Volume 27, Issue 1, Page 1-12, January 2026.
ABSTRACT Quantifying broad‐scale population trends and distribution change is critical for effective management and conservation of marine species, particularly under climate change. However, fragmented regional survey data often hinder such efforts for transboundary populations. A prime example is Pacific Spiny Dogfish (Squalus suckleyi, Squalidae), a
Lindsay N. K. Davidson, Philina A. English, Jackie King, Paul B. C. Grant, Ian G. Taylor, Lewis A. K. Barnett, Vladlena Gertseva, Cindy A. Tribuzio, Sean C. Anderson   +8 more
wiley   +1 more source

Generalized Hyers–Ulam Stability of the Additive Functional Equation

Axioms, 2019
We will prove the generalized Hyers–Ulam stability and the hyperstability of the additive functional equation f(x1 + y1, x2 + y2, …, xn + yn) = f(x1, x2, … xn) + f(y1, y2, …, yn).
Yang-Hi Lee, Gwang Hui Kim
doaj   +1 more source

Sliding mode adaptive state observation for time-delay uncertain nonlinear systems [PDF]

, 2008
In this paper a method to design robust adaptive sliding mode observers (ASMO) for a class of nonlinear time- delay systems with uncertainties, is proposed. The objective is to achieve insensitivity and robustness of the proposed sliding mode observer to
Raoufi, R., Zinober, A.S.I.
core   +1 more source