Results 61 to 70 of about 15,066 (137)

Analysis strategies for time‐resolved X‐ray solution scattering at high repetition rate XFEL sources

open access: yesJournal of Synchrotron Radiation, Volume 33, Issue 1, Page 18-31, January 2026.
An analysis of experimental artifacts in time‐resolved X‐ray solution scattering data acquired at high repetition rate XFEL sources, specifically at the FXE instrument at the European XFEL, is presented.With the start of the user program at the European XFEL in 2017, and more recently with the LCLS‐II upgrade, the X‐ray repetition rate at X‐ray free ...
Morten Lunn Haubro   +27 more
wiley   +1 more source

Beyond the Hodge theorem: Curl and asymmetric pseudodifferential projections

open access: yesJournal of the London Mathematical Society, Volume 113, Issue 1, January 2026.
Abstract We develop a new approach to the study of spectral asymmetry. Working with the operator curl:=∗d$\operatorname{curl}:={*}\mathrm{d}$ on a connected oriented closed Riemannian 3‐manifold, we construct, by means of microlocal analysis, the asymmetry operator — a scalar pseudodifferential operator of order −3$-3$.
Matteo Capoferri, Dmitri Vassiliev
wiley   +1 more source

Lorentzian Flat Lie Groups Admitting a Timelike Left-Invariant Killing Vector Field [PDF]

open access: yes, 2013
We call a connected Lie group endowed with a left-invariant Lorentzian flat metric Lorentzian flat Lie group. In this Note, we determine all Lorentzian flat Lie groups admitting a timelike left-invariant Killing vector field.
Lebzioui, Hicham
core   +2 more sources

Uniqueness and non‐uniqueness for the asymptotic Plateau problem in hyperbolic space

open access: yesProceedings of the London Mathematical Society, Volume 132, Issue 1, January 2026.
Abstract We prove several results on the number of solutions to the asymptotic problem in H3$\mathbb {H}^3$. Firstly, we discuss criteria that ensure uniqueness. Given a Jordan curve Λ$\Lambda$ in the asymptotic boundary of H3$\mathbb {H}^3$, we show that uniqueness of the minimal surfaces with asymptotic boundary Λ$\Lambda$ is equivalent to uniqueness
Zheng Huang, Ben Lowe, Andrea Seppi
wiley   +1 more source

Gallot-Tanno theorem for closed incomplete pseudo-Riemannian manifolds and application

open access: yes, 2009
In this article we extend the Gallot-Tanno theorem to closed pseudo-Riemannian manifolds. It is done by showing that if the cone over such a manifold admits a parallel symmetric 2-tensor then it is incomplete and has non zero constant curvature.
Mounoud, Pierre
core   +1 more source

Sign Competing Sources of Berry Curvature and Anomalous Hall Conductance Humps in Topological Ferromagnets

open access: yesAdvanced Electronic Materials, Volume 11, Issue 18, November 4, 2025.
Mechanism proposed for the humps in topological ferromagnet. a) Hysteresis loops of σxy in external uniaxial magnetic field Hz and b) Anomalous Hall conductivity σxy as a function of polar angle θ. Data for |h⃗|$|\vec{h}|$ = 3t and λR/t = 0.08. A, B, and C are the states of the 2D topological ferromagnets.
Wojciech Brzezicki   +2 more
wiley   +1 more source

On Almost Norden Statistical Manifolds. [PDF]

open access: yesEntropy (Basel), 2022
Samereh L, Peyghan E, Mihai I.
europepmc   +1 more source

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