Results 91 to 100 of about 4,116 (221)

Existence and stability of mixed type Hilfer fractional differential equations with impulses and time delay

Results in Applied Mathematics
In this paper, we consider a class of mixed type Hilfer fractional differential equations with noninstantaneous impulses, nonlocal conditions and time delay.
Baoyan Han, Bo Zhu
doaj   +1 more source

Resolving Interpretation Challenges in Machine Learning Feature Selection With an Iterative Approach in Biomedical Pain Data

European Journal of Pain, Volume 30, Issue 2, February 2026.
ABSTRACT Background Machine learning (ML) is increasingly used to analyse pain‐related data, emphasising how well variables classify individuals, that is, training an algorithm to assign people to predefined groups such as high versus low pain sensitivity, rather than focusing on p‐values.
Jörn Lötsch, André Himmelspach, Dario Kringel   +2 more
wiley   +1 more source

Local Borsuk-Ulam, Stability, and Replicability

Proceedings of the 56th Annual ACM Symposium on Theory of Computing
We use and adapt the Borsuk-Ulam Theorem from topology to derive limitations on list-replicable and globally stable learning algorithms. We further demonstrate the applicability of our methods in combinatorics and topology. We show that, besides trivial cases, both list-replicable and globally stable learning are impossible in the agnostic PAC setting.
Zachary Chase 0001, Bogdan Chornomaz, Shay Moran, Amir Yehudayoff   +3 more
openaire   +3 more sources

Designing with Li2S in Lithium–Sulfur Batteries: From Fundamental Chemistry to Practical Architectures

Small, Volume 22, Issue 9, 12 February 2026.
This perspective highlights the design evolution of Li2S‐based lithium‐batteries, illustrating sulfur redox chemistry and Li2S activation. Emphasis is placed on catalytic interfaces, hierarchical carbon frameworks, and electrolyte‐solvation co‐design, enabling lithium‐free, anode‐free, and solid‐state Li‐S architectures for high‐energy, manufacturable ...
Hyeona Park, Arcangelo Celeste, Shulin Wang, Chaiwon Lee, Yul Yang, Kaizhao Wang, Aleksandar Matic, Sergio Brutti, Shivam Kansara, Shizhao Xiong, Marco Agostini, Jang‐Yeon Hwang   +11 more
wiley   +1 more source

Stability of generalized Newton difference equations

Analele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2012
In the paper we discuss a stability in the sense of the generalized Hyers-Ulam-Rassias for functional equations Δn(p, c)φ(x) = h(x), which is called generalized Newton difference equations, and give a sufficient condition of the generalized Hyers-Ulam ...
Wang Zhihua, Shi Yong-Guo
doaj   +1 more source

On the Stability Problem of Differential Equations in the Sense of Ulam

Results in Mathematics, 2019
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Yasemin Başcı, Adil Mısır, Süleyman Öğrekçi   +2 more
openaire   +5 more sources

Generalized Hyers–Ulam Stability of Laplace Equation With Neumann Boundary Condition in the Upper Half‐Space

Mathematical Methods in the Applied Sciences, Volume 49, Issue 2, Page 521-530, 30 January 2026.
ABSTRACT This paper investigates the generalized Hyers–Ulam stability of the Laplace equation subject to Neumann boundary conditions in the upper half‐space. Traditionally, Hyers–Ulam stability problems for differential equations are analyzed by examining the system's error, particularly in relation to a forcing term.
Dongseung Kang, Hoewoon B. Kim, Dojin Kim   +2 more
wiley   +1 more source

Study on existence and stability analysis for implicit neutral fractional differential equations of ABC derivative

Partial Differential Equations in Applied Mathematics
In this paper, we study the existence, uniqueness, and stability analysis of non-linear implicit neutral fractional differential equations involving the Atangana–Baleanu derivative in the Caputo sense. The Banach contraction principle theorem is employed
V. Sowbakiya, R. Nirmalkumar, K. Loganathan, C. Selvamani   +3 more
doaj   +1 more source

Beyond Conventional Cooling: Advanced Micro/Nanostructures for Managing Extreme Heat Flux

Advanced Materials, Volume 38, Issue 5, 22 January 2026.
This review examines the design, application, and manufacturing of biomimetic or engineered micro/nanostructures for managing high heat‐flux in multi‐level electronics by enhancing conductive, convective, phase‐changing, and radiative heat transfer mechanisms, highlighting their potential for efficient, targeted thermal management, and future prospects.
Yuankun Zhang, Huajie Li, Yuhang Zhou, Jun Ma, Keng‐Te Lin, Han Lin, Chunsheng Guo, Baohua Jia   +7 more
wiley   +1 more source

On the Hyers-Ulam Stability of a System of Euler Dierential Equations of First Order

, 2016
[[abstract]]In this paper, we prove the Hyers-Ulam stability of a special type of systems of Euler dierential equations of rst ...
Byungbae Kim, Themistocles M. Rassias, Soon-Mo Jung   +2 more
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