Results 51 to 60 of about 733 (147)

On the Existential Theory of the Completions of a Global Field

open access: yesMathematische Nachrichten, Volume 299, Issue 9, Page 2680-2692, September 2026.
ABSTRACT We discuss the common existential theory of all or almost all completions of a global function field.
Philip Dittmann, Arno Fehm
wiley   +1 more source

Stand‐alone graph‐based lung airway labeling with quantitative validations

open access: yesMedical Physics, Volume 53, Issue 9, September 2026.
Abstract Background Previous studies have shown that protecting airways connected to high‐functioning lung parenchyma reduces the risk of post‐treatment radiation‐induced lung injury. To account for airway sparing in radiotherapy planning, a critical requirement is to characterize the geometry and radiation response of individual airway segments ...
Hairong Chen, Arezoo Modiri, Amit Sawant
wiley   +1 more source

Morphological State Transitions and Sediment Transport Variability in Braided Rivers

open access: yesWater Resources Research, Volume 62, Issue 9, September 2026.
Abstract Sediment transport in braided rivers shows significant temporal variability, characterized by intense bursts of transport rates even under steady‐state conditions. These fluctuations are often viewed as the consequence of random variations in the local hydraulic conditions and sediment movement.
C. Gotelli, C. Ancey
wiley   +1 more source

Polyhedral Reconstruction of Advanced 3D Building Geometries by Data Fusion and Polygon Covering in Urban Areas

open access: yesTransactions in GIS, Volume 30, Issue 6, September 2026.
ABSTRACT This paper presents several enhancements to the universal generation of realistic 3D urban scenes with detailed roof shapes, leveraging key data sources such as OpenStreetMap and Digital Terrain Models. The prior approach relied on core principles of 3D mesh generation, producing models compatible with various 3D rendering systems and game ...
Hanli Liu   +3 more
wiley   +1 more source

On the chain of commuting operators on Banach spaces

open access: yesBulletin of the London Mathematical Society, Volume 58, Issue 9, September 2026.
Abstract An operator T$T$ on a Banach space is said to be of chain N$N$ if there exist non‐scalar operators S1,⋯,SN−1$S_1,\dots,S_{N-1}$ and a non‐zero compact operator K$K$ such that T↔S1↔S2↔⋯↔SN−1↔K,$$\begin{equation*} T \leftrightarrow S_1 \leftrightarrow S_2 \leftrightarrow \dots \leftrightarrow S_{N-1} \leftrightarrow K, \end{equation*}$$where A↔B$
Tomasz Szczepanski
wiley   +1 more source

Uniformization of cofat domains on metric two‐spheres

open access: yesJournal of the London Mathematical Society, Volume 114, Issue 3, September 2026.
Abstract We extend Schramm's cofat uniformization theorem to cofat domains on upper Ahlfors 2‐regular metric two‐spheres X$X$. Specifically, we show that if Ω⊂X$\Omega \subset X$ is a cofat domain, then there exists a π2$\frac{\pi }{2}$‐quasiconformal homeomorphism f:Ω→D$f: \Omega \rightarrow D$ onto a circle domain D⊂S2$D \subset \mathbb {S}^2 ...
Chengxi Li, Kai Rajala
wiley   +1 more source

Metric spaces with small rough angles and the rectifiability of rough self‐contracted curves

open access: yesJournal of the London Mathematical Society, Volume 114, Issue 3, September 2026.
Abstract The small rough angle (SRA$\operatorname{SRA}$) condition, introduced by Zolotov in arXiv:1804.00234, captures the idea that all angles formed by triples of points in a metric space are small. In the first part of the paper, we develop the theory of metric spaces (X,d)$(X,d)$ satisfying the SRA(α)$\operatorname{SRA}(\alpha)$ condition for some
Estibalitz Durand Cartagena   +1 more
wiley   +1 more source

Effective length‐projection bounds for hyperbolic 3‐manifolds diffeomorphic to S×R$S\times \mathbb {R}$

open access: yesJournal of Topology, Volume 19, Issue 3, September 2026.
Abstract We give a formula with explicit constants relating the subsurface projection dY(ν−,ν+)$d_Y(\nu ^-,\nu ^+)$ of the end invariants ν−,ν+$\nu ^-,\nu ^+$ of a hyperbolic 3‐manifold Q$Q$ diffeomorphic to S×R$S\times \mathbb {R}$ and the length of the geodesic representative in Q$Q$ of the multicurve ∂Y$\partial Y$.
Gabriele Viaggi
wiley   +1 more source

Solution of the Hausdorff moment problem by the use of Pollaczek polynomials

open access: yesJournal of Mathematical Analysis and Applications, 1991
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +2 more sources

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