Results 21 to 30 of about 310,302 (319)

Nonmonotone, nonlinear evolution inclusions

Mathematical and Computer Modelling, 2000
The evolution inclusion \[ x'(t) + A(t,x(t))\in F(t,x(t ...
Nikolas S. Papageorgiou, Francesca Papalini, Nikos Yannakakis   +2 more
openalex   +3 more sources

On the “bang-bang” principle for nonlinear evolution inclusions

Aequationes Mathematicae, 1993
This paper appears to be (verbatim) the same as [Aequationes Math. 45, No. 2-3, 267-280 (1993) see the review above].
Nikolas S. Papageorgiou
openalex   +3 more sources

Optimal control of nonlinear evolution inclusions

Journal of Optimization Theory and Applications, 1990
We study the optimal control of nonlinear evolution inclusions. First, we prove the existence of admissible trajectories and then we show that the set that they form is relatively sequentially compact and in certain cases sequentially compact in an appropriate function space. Then, with the help of a convexity hypothesis and using Cesari's approach, we
Nikolaos S. Papageorgiou
openalex   +3 more sources

Numerical modeling of wave turbulence: Stability analysis and energy spectrum evolution

AIP Advances
This study investigates wave turbulence in fluids using a one-dimensional coupled model equation derived from conservation laws. Numerical simulations employing pseudo-spectral and finite difference methods reveal the intricate dynamics of turbulence ...
Praveen Kumar, R. Uma, R. P. Sharma
doaj   +2 more sources

Periodic solutions for nonlinear nonmonotone evolution inclusions

Discrete & Continuous Dynamical Systems - B, 2017
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Leszek Gasiński, Νικόλαος Παπαγεωργίου   +1 more
openalex   +5 more sources

Analytical solutions and implications for hydrodynamics and nonlinear optics

AIP Advances
This article discusses the generalization of time-fractional conformable mathematical models for studying the Estevez–Mansfield–Clarkson (EMC) equation of solutions.
Nauman Ahmed, Zunaira, Sidra Ghazanfar, Muhammad Z. Baber, Baboucarr Ceesay   +4 more
doaj   +2 more sources

FOURIER PROBLEM FOR WEAKLY NONLINEAR EVOLUTION INCLUSIONS WITH FUNCTIONALS

Journal of Optimization, Differential Equations and their Applications, 2019
The Fourier problem or, in other words, the problem without initial conditions for evolution equations and inclusions arise in modeling different nonstationary processes in nature, that started a long time ago and initial conditions do not affect on them in the actual time moment.
Mykola Bokalo, Iryna Skira
openalex   +4 more sources

Extremal solutions and strong relaxation for nonlinear periodic evolution inclusions [PDF]

Proceedings of the Edinburgh Mathematical Society, 2000
AbstractWe study the existence of extremal periodic solutions for nonlinear evolution inclusions defined on an evolution triple of spaces and with the nonlinear operator establish A being time-dependent and pseudomonotone. Using techniques of multivalued analysis and a surjectivity result for L-generalized pseudomonotone operators, we prove the ...
Νικόλαος Παπαγεωργίου, Nikos Yannakakis   +1 more
openalex   +3 more sources

Nonlinear evolution inclusions: Topological characterizations of solution sets and applications

Journal of Functional Analysis, 2013
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
De-Han Chen, Rongnian Wang, Yong Zhou
semanticscholar   +3 more sources

Predicting large-scale cosmological structure evolution with generative adversarial network-based autoencoders

Astronomy & Astrophysics
Predicting the nonlinear evolution of cosmic structure from initial conditions is typically approached using Lagrangian, particle-based methods. These techniques excel in terms of tracking individual trajectories, but they might not be suitable for ...
Ullmo Marion, Aghanim Nabila, Decelle Aurélien, Aragon-Calvo Miguel   +3 more
doaj   +2 more sources