Results 31 to 40 of about 159 (65)

A Semi‐Analytical Approach to Model Borehole Tube Waves for Interpretation of Downhole Seismic Data in Fault Zones

open access: yesJournal of Geophysical Research: Solid Earth, Volume 131, Issue 3, March 2026.
Abstract Understanding fault‐zone permeability is crucial in model‐based assessment of fluid migration, earthquake nucleation, and hydrothermal or hydrocarbon systems. Vertical seismic profiling (VSP) often captures Stoneley (tube) waves generated by fluid‐formation coupling in and around a borehole.
Shohei Minato   +2 more
wiley   +1 more source

A noncommutative view on topology and order

open access: yes, 2009
In this paper we put forward the definition of particular subsets on a unital C*-algebra, that we call isocones, and which reduce in the commutative case to the set of continuous non-decreasing functions with real values for a partial order relation ...
Ambjorn   +14 more
core   +3 more sources

An accelerated framework for high‐resolution X‐ray holographic reconstruction

open access: yesJournal of Synchrotron Radiation, Volume 33, Issue 2, Page 454-466, March 2026.
HiHolo, a high‐performance CUDA‐MPI software framework for X‐ray holographic reconstruction, achieves performance improvement over existing solutions while introducing three enhanced iterative algorithms that effectively reduce artifacts and improve spatial resolution in propagation‐based phase contrast imaging.X‐ray propagation‐based phase contrast ...
Jiarui Hu   +5 more
wiley   +1 more source

High‐energy synchrotron X‐ray multimodal computed tomography: enabling multiscale materials characterization at NSLS‐II

open access: yesJournal of Synchrotron Radiation, Volume 33, Issue 2, Page 531-542, March 2026.
The development of multimodal X‐ray computed tomography capabilities, including imaging, fluorescence, diffraction, and scattering, at the 28‐ID‐2 beamline of the National Synchrotron Light Source II is described.We report the commissioning of a multimodal computed tomography experimental setup at the 28‐ID‐2 (XPD) beamline of the National Synchrotron ...
Mehmet Topsakal   +6 more
wiley   +1 more source

Clinical Evaluation of Drug–Drug Interactions With Aficamten

open access: yesClinical and Translational Science, Volume 19, Issue 3, March 2026.
ABSTRACT Aficamten is a next‐in‐class small molecule cardiac myosin inhibitor that was recently approved by the United States Food and Drug Administration (FDA) for the treatment of symptomatic obstructive hypertrophic cardiomyopathy (oHCM). A comprehensive drug–drug interaction (DDI) evaluation of aficamten was achieved through two phase 1 studies in ...
Neha Maharao   +11 more
wiley   +1 more source

Bridgeland stability conditions and skew lines on $\mathbb{P}^3$

open access: yes, 2023
Inspired by Schmidt's work on twisted cubics, we study wall crossings in Bridgeland stability, starting with the Hilbert scheme $\mathrm{Hilb}^{2m+2}(\mathbb{P}^3)$ parametrizing pairs of skew lines and plane conics union a point. We find two walls. Each
Gulbrandsen, Martin G.   +1 more
core  

Small triangles

open access: yesJournal of the London Mathematical Society, Volume 113, Issue 3, March 2026.
Abstract Heilbronn's triangle problem is a classical question in discrete geometry. It asks to determine the smallest number Δ=Δ(N)$\Delta = \Delta (N)$ for which every collection in N$N$ points in the unit square spans a triangle with area at most Δ$\Delta$.
Dmitrii Zakharov
wiley   +1 more source

Spaces of dimension three with congruence [PDF]

open access: yes, 2006
It is well known that every Euclidean plane (E, L, α, ≡) is isomorphic to an affine plane AG(2,K) over a Pythagorean ordered commutative field K .There is a corrisponding theorem for hyperbolic panes (cf. [2]).
Kreuzer, Alexander
core   +1 more source

Osculating geometry and higher‐order distance Loci

open access: yesJournal of the London Mathematical Society, Volume 113, Issue 3, March 2026.
Abstract We discuss the problem of optimizing the distance function from a given point, subject to polynomial constraints. A key algebraic invariant that governs its complexity is the Euclidean distance degree, which pertains to first‐order tangency. We focus on the data locus of points possessing at least one critical point of the distance function ...
Sandra Di Rocco   +2 more
wiley   +1 more source

Critically fixed Thurston maps: classification, recognition, and twisting

open access: yesProceedings of the London Mathematical Society, Volume 132, Issue 3, March 2026.
Abstract An orientation‐preserving branched covering map f:S2→S2$f\colon S^2\rightarrow S^2$ is called a critically fixed Thurston map if f$f$ fixes each of its critical points. It was recently shown that there is an explicit one‐to‐one correspondence between Möbius conjugacy classes of critically fixed rational maps and isomorphism classes of planar ...
Mikhail Hlushchanka, Nikolai Prochorov
wiley   +1 more source

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