Results 51 to 60 of about 214,384,274 (154)
Matchings: Source, goal, and faithful companion
Journal of the London Mathematical Society, Volume 114, Issue 4, October 2026.Abstract Matchings were among the earliest motivations for graph theory. They subsequently remained a central goal, inspiring the development of new mathematical tools that went well beyond problems directly concerning matchings. These tools proved widely applicable, accompanying the growth of graph theory over the past century.
András Sebő
wiley +1 more source
Playing in the Dark: Invisible Chess as a Laboratory for Strategic AI
AI &Innovation, Volume 1, Issue 2, September 2026.This paper shows that strategic AI evaluated on perfect‐information benchmarks can be brittle in real adversarial settings. By using invisible chess as a benchmark for hidden state and deception, it argues for stricter testing, human oversight, and more cautious governance of high‐stakes AI systems.
Paolo Ciancarini
wiley +1 more source
Multiple solutions to asymmetric semilinear elliptic problems via Morse theory
Electronic Journal of Differential Equations, 2014 In this article we study the existence of solutions to the problem $$\displylines{ -\Delta u = g(x,u) \quad \text{in } \Omega; \cr u = 0 \quad\text{on } \partial\Omega, }$$ where $\Omega$ is a smooth bounded domain in $\mathbb{R}^N$ $(N\geq 2)$
Leandro L. Recova, Adolfo J. Rumbos
doaj
Hidden Markov graphical models with state‐dependent generalized hyperbolic distributions
Canadian Journal of Statistics, Volume 54, Issue 3, September 2026.Abstract In this article, we develop a novel hidden Markov graphical model to investigate time‐varying interconnectedness between different financial markets. To identify conditional correlation structures under varying market conditions and accommodate shape features embedded in financial time series, we rely upon the generalized hyperbolic family of ...
Beatrice Foroni +2 more
wiley +1 more source
Systems of Simultaneous Generalized Vector Quasiequilibrium Problems and their Applications
, 2011 [[abstract]]In this paper, we introduce systems of simultaneous generalized vector equilibrium problems and prove the existence of their solutions. As application of our results, we derive the existence theorems for solutions of systems of vector saddle ...
Q.H.Ansari; L.J. Lin ; L.B.Su
core
Radial symmetry of minimax critical points for nonsmooth functionals
, 2011 We obtain the existence of radially symmetric and decreasing solutions to a general class of quasi-linear elliptic problems by a nonsmooth version of a symmetric minimax principle recently obtained by Van ...
Squassina, Marco, MARCO SQUASSINA
core +1 more source
Existence of Periodic Solutions for a Class of Difference Systems with p-Laplacian [PDF]
, 2012 By applying the least action principle and minimax methods in critical point theory, we prove the existence of periodic solutions for a class of difference systems with p-Laplacian and obtain some existence ...
Qiongfen Zhang, Kai Chen
core +1 more source
Worst-case estimation for econometric models with unobservable components. [PDF]
A worst-case estimator for econometric models containing unobservable components, based on minimax principles for optimal selection of parameters, is proposed. Worst-case estimators are robust against the averse effects of unobservables.
Esteban Bravo, Mercedes +1 more
core
A study of minimax solutions for Saturn control problems Final report [PDF]
, 1967 Chebyshev minimax solutions for Saturn launch vehicle control problems, and hybrid-analog computer realization of ...
Johnson, C. D.
core
The Minimax Estimation Method for a Class of Inverse Helmholtz Transmission Problems
, 2019 We present complete mathematical statements and perform detailed investigations of the minimax estimation problems of unknown data for the Helmholtz transmission problems from indirect noisy observations of their solutions.
Nakonechnyi, Oleksandr, +2 more
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