Results 181 to 190 of about 205,186 (270)

Approximation of Dirac operators with δ‐shell potentials in the norm resolvent sense, II: Quantitative results

open access: yesMathematische Nachrichten, Volume 299, Issue 4, Page 704-763, April 2026.
Abstract This paper is devoted to the approximation of two‐ and three‐dimensional Dirac operators HV∼δΣ$H_{\widetilde{V} \delta _\Sigma }$ with combinations of electrostatic and Lorentz scalar δ$\delta$‐shell interactions in the norm resolvent sense. Relying on results from Behrndt, Holzmann, and Stelzer‐Landauer [Math. Nachr.
Jussi Behrndt   +2 more
wiley   +1 more source

The Application of Metal–Organic Frameworks as Drug Delivery Systems: From the Perspective of Molecular Dynamics Simulations

open access: yesMedComm, Volume 7, Issue 4, April 2026.
This review article provides a comprehensive exploration of the synergistic integration of molecular dynamics (MD) simulations and metal–organic frameworks (MOFs) to advance the design and optimization of nanoscale drug delivery systems (DDSs). We believe this work will be of significant interest to researchers in nanomedicine, computational biology ...
Jiahao Xu   +11 more
wiley   +1 more source

Hitchhiker's Guide to the Swampland: The Cosmologist's Handbook to the String‐Theoretical Swampland Programme

open access: yesFortschritte der Physik, Volume 74, Issue 4, April 2026.
Abstract String theory has strong implications for cosmology, implying the absence of a cosmological constant, ruling out single‐field slow‐roll inflation, and that black holes decay. The origins of these statements are elucidated within the string‐theoretical swampland programme.
Kay Lehnert
wiley   +1 more source

A Multi‐Dimensional Cathodoluminescence Detector With 3D Printed Micro‐Optics on a Fiber

open access: yesAdvanced Quantum Technologies, Volume 9, Issue 4, April 2026.
A fiber‐based cathodoluminescence (CL) spectroscopy detector is realized by printing a micro‐optical lens directly onto the fiber's facet using two‐photon polymerization. This compact collection scheme enables efficient CL acquisition across complex sample geometries, offering simplified alignment, modular integration, and access to spatially resolved ...
Paul H. Bittorf   +4 more
wiley   +1 more source

Introduction to Lorentz Spaces

open access: yes, 2012
In this work we study Lorentz spaces $L^{p,q}$. That is, let ($\mathcal{R}$,μ) be a σ-finite complete measure space, and suppose p ≥ 1 and 1 ≤ q ≤ ∞
openaire   +1 more source

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