Results 101 to 110 of about 548,689 (195)

Continuation of Periodic Solutions in Conservative Systems Leveraging the First Integral of Motion

open access: yesProceedings in Applied Mathematics and Mechanics, Volume 26, Issue 4, December 2026.
ABSTRACT Dynamical systems are often analysed with respect to a system parameter, for which numerical continuation methods are typically used. In most cases, dissipative systems are considered. Here, the continuation of periodic solutions requires the existence of an explicit parameter that can be varied during the continuation process.
Julian Vogelei   +2 more
wiley   +1 more source

Global well‐posedness and large‐time behavior for non‐isothermal nematic liquid crystal flows with temperature‐dependent viscosity

open access: yesTransactions of the London Mathematical Society, Volume 13, Issue 1, December 2026.
Abstract We investigate an initial‐boundary value problem of non‐isothermal nematic liquid crystal flows with temperature‐dependent viscosity in three‐dimensional bounded domains. Based on the time‐weighted energy estimates, we derive the existence of a unique global strong solution under some smallness condition.
Lu Zhang, Xin Zhong
wiley   +1 more source

La dynamique de l'électron par Henri Poincaré (The dynamics of the electron by Henri Poincaré)

open access: yes, 1913
An original of the lecture notes belongs to Germain Rousseaux.Lectures given by Henri Poincaré in July 1912 at the Ecole Supérieure des Postes et des Télégraphes. Suppléments aux Annales des Postes, Télégraphes et Téléphones. Mars 1913, A. Dumas Editeur,
Poincaré, Henri
core  

Frequency‐dependent contraction rates for the Bayesian method to the inverse source problem

open access: yesTransactions of the London Mathematical Society, Volume 13, Issue 1, December 2026.
Abstract This paper addresses an inverse source problem for acoustic waves in a range of frequencies. Our study has two main goals. First, although the problem is severely ill‐posed with a logarithmic stability estimate, we demonstrate, through careful analysis of the forward map's singular values, that increasing the frequency range enhances stability,
Pu‐Zhao Kow, Jenn‐Nan Wang
wiley   +1 more source

Quantum field theory for coherent photons: isomorphism between Stokes parameters and spin expectation values

open access: yesFrontiers in Physics
Stokes parameters (S) on the Poincaré sphere are very useful values to describe the polarisation state of photons. However, the fundamental principle on the nature of polarisation is not completely understood, yet, because we have no concrete consensus ...
Shinichi Saito
doaj   +1 more source

The mod 2 Seiberg–Witten invariants of spin structures and spin families

open access: yesJournal of Topology, Volume 19, Issue 4, December 2026.
Abstract We completely determine the mod 2 Seiberg–Witten invariants for any spin structure on any closed, oriented, smooth 4‐manifold X$X$. Our computation confirms the validity of the simple‐type conjecture mod 2 for spin structures. Our proof also works for families of spin 4‐manifolds and thus computes the mod 2 Seiberg–Witten invariants for spin ...
David Baraglia
wiley   +1 more source

Passive stokes-based quadrature phase demodulation in hollow-core photonic crystal fibers for strain sensing

open access: yesJournal of the European Optical Society-Rapid Publications
Strain-induced polarization dynamics in a 7-cell hollow-core photonic crystal fiber (HC-PCF) were investigated as a basis for passive phase demodulation in optical strain sensing.
Piaia Vinícius   +4 more
doaj   +1 more source

Unitary transformation for Poincaré beams on different parts of Poincaré sphere. [PDF]

open access: yesSci Rep, 2020
Sun X   +6 more
europepmc   +1 more source

Poincaré sphere representation of the fixed-polarizer rotating-retarder optical system

open access: yes, 2011
The trajectory of the polarization state of a monochromatic light beam after it passes through a fixed linear polarizer and a rotating linear retarder of arbitrary retardance Δ is determined on the Poincaré sphere.
Azzam, R. M.A.
core  

The Influence of Sea‐Land Breeze on the Circulation and Air‐Sea Thermodynamics of the Mississippi Sound and Bight

open access: yesGeophysical Research Letters, Volume 53, Issue 19, 16 October 2026.
Abstract High spatial and temporal resolution wind forcing is essential to capture the highly variable atmospheric circulation driving ocean currents in shallow waters and across complex coastal features in the Mississippi Sound. In this study, we examine the sensitivity of modeled hydrodynamics to sea‐land breeze (SLB) circulation. Two versions of the
D. N. Bernstein   +4 more
wiley   +1 more source

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