Results 111 to 120 of about 1,216,806 (296)

A generalized FKKM theorem and variational inequality [PDF]

open access: yes
We present a generalized FKKM Theorem and it's application to the existence of solution for the variationals inequalities using a generalized coercivity type condition for correspondences defined in L-space.L-structure, L-spaces, L-KKM correspondences, L-
Hakim Hammami
core  

Pontryagin Maximum Principle for Optimal Control of Variational Inequalities

open access: yes, 1999
International audienceIn this paper we investigate optimal control problems governed by variational inequalities. We present a method for deriving optimality conditions in the form of Pontryagin's principle.
Bergounioux, Maïtine, Zidani, Housnaa
core   +3 more sources

Patients improve, patterns persist: longitudinal stability of RA joint involvement patterns

open access: yesArthritis Care &Research, Accepted Article.
Objective Rheumatoid arthritis is a heterogeneous disease. Data‐driven approaches, from synovial histology to joint involvement patterns (JIPs), have sought to define clinically meaningful subgroups. Whether these subgroups represent stable phenotypes or transient disease states remains unclear.
Tjardo Maarseveen   +24 more
wiley   +1 more source

A variational principle for Gaussian lattice sums

open access: yesForum of Mathematics, Pi
We consider a two-dimensional analog of Jacobi theta functions and prove that, among all lattices Λ⊂R2 $\Lambda \subset \mathbb {R}^2$ normal upper Lamda subset of double struck upper R squared with fixed density, the minimal value is maximized by ...
Laurent Bétermin   +2 more
doaj   +1 more source

Characterization of Defect Distribution in an Additively Manufactured AlSi10Mg as a Function of Processing Parameters and Correlations with Extreme Value Statistics

open access: yesAdvanced Engineering Materials, EarlyView.
Predicting extreme defects in additive manufacturing remains a key challenge limiting its structural reliability. This study proposes a statistical framework that integrates Extreme Value Theory with advanced process indicators to explore defect–process relationships and improve the estimation of critical defect sizes. The approach provides a basis for
Muhammad Muteeb Butt   +8 more
wiley   +1 more source

A Workflow to Accelerate Microstructure‐Sensitive Fatigue Life Predictions

open access: yesAdvanced Engineering Materials, EarlyView.
This study introduces a workflow to accelerate predictions of microstructure‐sensitive fatigue life. Results from frameworks with varying levels of simplification are benchmarked against published reference results. The analysis reveals a trade‐off between accuracy and model complexity, offering researchers a practical guide for selecting the optimal ...
Luca Loiodice   +2 more
wiley   +1 more source

Ekeland Type Variational Principle with Applications to Quasi-variational Inclusion Problems

open access: yes, 2011
[[abstract]]In this paper, we study the Ekeland type variational principle, a Caristi Kirk type fixed point theorem and a maximal element theorem in the setting of uniform spaces.
Lai-Jiu Lin;Chih Sheng Chuang
core  

The Maximum Caliber Variational Principle for Nonequilibria. [PDF]

open access: yesAnnu Rev Phys Chem, 2020
Ghosh K, Dixit PD, Agozzino L, Dill KA.
europepmc   +1 more source

Air‐Pressure–Actuated Vibroacoustic Metamaterial With Tunable Bandgap: Design, Modeling, and Characterization

open access: yesAdvanced Engineering Materials, EarlyView.
This article presents the design, modeling, and characterization of air‐pressure–actuated programmable vibroacoustic metamaterials (PVAMM). The study focuses on leveraging air pressure to dynamically tune resonance frequencies for effective noise attenuation.
William Kaal   +2 more
wiley   +1 more source

Minty variational inequalities, increase-along-rays property and optimization [PDF]

open access: yes
Let E be a linear space, K E and f : K ? R. We put in terms of the lower Dini directional derivative a problem, referred to as GMV I(f ,K), which can be considered as a generalization of the Minty variational inequality of differential type (for short ...
Rocca Matteo   +2 more
core  

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