Results 91 to 100 of about 86,877,915 (235)

From integral manifolds and metrics to potential maps

open access: yesAtti della Accademia Peloritana dei Pericolanti : Classe di Scienze Fisiche, Matematiche e Naturali, 2004
Our paper contains two main results: (1) the integral manifolds of a distribution together with two Riemann metrics produce potential maps which are in fact least squares approximations of the starting integral manifolds; (2) the least squares energy ...
Udriste, C
doaj   +1 more source

PDE admitting Lagrangian solutions with nontrivial homotopy invariants (π-degree, polarization index, maslov period)

open access: yesJournal of Differential Equations, 1991
The author considers four qualitative invariants for Lagrangian cylinders ([\(\theta\)]-period, \(\pi\)-degree, polarization index and Maslov period) and shows that for specific classes of first and second order periodic differential equations in the plane there exist solution Lagrangian cylinders whose invariants are not trivial.
openaire   +1 more source

Optical Solitons and Analysis of Chaotic Nature for the Temporal M-Fractional Yajima–Oikawa Model in Shortwave and Longwave

open access: yesJournal of Mathematics
This study proposes a comprehensive study on fractional soliton solutions and chaotic nature for the temporal M-fractional Yajima–Oikawa (YO) model in shortwave and longwave regimes.
Md. Mamunur Roshid   +4 more
doaj   +1 more source

Unveiling New Perspectives on the Hirota–Maccari System With Multiplicative White Noise

open access: yesMathematical Methods in the Applied Sciences, EarlyView.
ABSTRACT In this study, we delve into the stochastic Hirota–Maccari system, which is subjected to multiplicative noise according to the Itô sense. The stochastic Hirota–Maccari system is significant for its ability to accurately model how stochastic affects nonlinear wave propagation, providing valuable insights into complex systems like fluid dynamics
Mohamed E. M. Alngar   +3 more
wiley   +1 more source

Forced symmetry breaking perturbations for periodic solutions [PDF]

open access: yes, 1996
Using the formalism defined by R. Lauterbach and M. Roberts [21], we develop a geometric approach for the problem of forced symmetry breaking for periodic orbits in G-equivariant systems of ODE's.
Guyard, Frédéric, Lauterbach, Reiner
core   +1 more source

Artificial Intelligence for Blue Transformation: A Review of Predictive Modeling and Decision Support Systems in Sustainable Aquaculture

open access: yesSustainable Development, EarlyView.
ABSTRACT The FAO's “blue transformation” roadmap necessitates a fundamental shift towards precision aquaculture to meet global food security targets while minimizing environmental footprints. This review provides a comprehensive overview of how artificial intelligence (AI) and decision support systems (DSS) serve as pivotal enablers for the “better ...
Mustafa Öz, Enes Üstüner
wiley   +1 more source

Existence of quasi-periodic solutions for nonlinear evolution equations via the theorem of Nash-Moser

open access: yes, 2012
We survey new existence and stability results of quasi-periodic solutions for ...
BERTI, MASSIMILIANO
core  

Single‐Vesicle Functional Nanophenotyping Reveals Heterogeneous PD‐L1 Accessibility in Triple‐Negative Breast Cancer

open access: yesSmall Methods, EarlyView.
Graphical Abstract. High‐speed atomic force microscopy enables real‐time, label‐free visualization of antibody interactions with individual extracellular vesicles. By quantifying binding frequency and dwell time, this approach reveals functional PD‐L1 accessibility that cannot be inferred from protein abundance alone, uncovering nanoscale heterogeneity
Reon Imakawa   +10 more
wiley   +1 more source

Fault‐Tolerant Fuzzy Boundary Control for Nonlinear Distributed Parameter Systems Under Limited Measurements and Markovian Failures

open access: yesCAAI Transactions on Intelligence Technology, EarlyView.
ABSTRACT This paper proposes a boundary control method for nonlinear distributed parameter systems (DPSs) with limited boundary measurements (BMs), as typically encountered in networked cyber‐physical processes with spatially distributed dynamics such as thermal and biomedical diffusion systems.
Yanlin Li   +5 more
wiley   +1 more source

Precise soliton solutions of the Landau-Ginzburg-Higgs equation via the Sardar sub-equation method

open access: yesDiscover Applied Sciences
In the realm of nonlinear mathematical physics, the Landau-Ginzburg-Higgs (LGH) equation stands as a pivotal model for understanding complex physical phenomena, including superconductors, phase transitions, and particle interactions.
Ahmed Refaie Ali   +4 more
doaj   +1 more source

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