Results 61 to 70 of about 61,413 (290)

Coherentlike conditions in pullbacks.

open access: yesMichigan Mathematical Journal, 1997
Let \(M\) be a (nonzero) maximal ideal of a domain \(T\), let \(k=T/M\) be the residue field, let \(\varphi: T\to k\) be the natural projection, and let \(D\) be a proper subring of \(k\). Let \(R= \varphi^{-1} (D)\) be the domain arising from the following pullback of canonical homomorphisms: \[ \begin{matrix} R & \to & D \\ \downarrow & & \downarrow \
Gabelli, Stefania, Houston, Evan
openaire   +2 more sources

Thurston's pullback map on the augmented Teichm\"uller space and applications

open access: yes, 2011
Let $f$ be a postcritically finite branched self-cover of a 2-dimensional topological sphere. Such a map induces an analytic self-map $\sigma_f$ of a finite-dimensional Teichm\"uller space.
A. Douady   +18 more
core   +1 more source

Pullback exponential attractors for differential equations with variable delays

open access: yesDiscrete & Continuous Dynamical Systems - B, 2020
We show how recent existence results for pullback exponential attractors can be applied to non-autonomous delay differential equations with time-varying delays. Moreover, we derive explicit estimates for the fractal dimension of the attractors.
Hammami   +3 more
semanticscholar   +1 more source

Smart Catheters for Diagnosis, Monitoring, and Therapy

open access: yesAdvanced Healthcare Materials, EarlyView.
This study presents a comprehensive review of smart catheters, an emerging class of medical devices that integrate embedded sensors, robotics, and communication systems, offering increased functionality and complexity to enable real‐time health monitoring, diagnostics, and treatment. Abstract This review explores smart catheters as an emerging class of
Azra Yaprak Tarman   +12 more
wiley   +1 more source

Patient‐Mounted Neuro Optical Coherence Tomography for Targeted Minimally Invasive Micro‐Resolution Volumetric Imaging in Brain In Vivo

open access: yesAdvanced Intelligent Systems, Volume 7, Issue 3, March 2025.
Herein, a patient‐mounted neuro optical coherence tomography system that integrates a 5 degrees‐of‐freedom skull‐mounted robot (Skullbot) with a 0.6 mm neuroendoscope for targeted, minimally invasive deep brain imaging, is developed. The system offers high‐resolution imaging with precise deployment, demonstrated through successful tumor imaging in a ...
Chao Xu   +7 more
wiley   +1 more source

Random attractors for stochastic two-compartment Gray-Scott equations with a multiplicative noise

open access: yesOpen Mathematics, 2016
In this paper, we consider the existence of a pullback attractor for the random dynamical system generated by stochastic two-compartment Gray-Scott equation for a multiplicative noise with the homogeneous Neumann boundary condition on a bounded domain of
Jia Xiaoyao, Gao Juanjuan, Ding Xiaoquan
doaj   +1 more source

Random attractors for non-autonomous stochastic plate equations with multiplicative noise and nonlinear damping

open access: yesAIMS Mathematics, 2020
Based on the abstract theory of pullback attractors of non-autonomous non-compact dynamical systems by differential equations with both dependent-time deterministic and stochastic forcing terms, which introduced by B.
Xiaobin Yao
doaj   +1 more source

Effect of Pullback Speed and the Distance between the Skin and Vein on the Performance of Endovenous Laser Treatment by Numerical Simulation [PDF]

open access: yesIranian Journal of Medical Physics, 2018
Introduction: Endovenous laser treatment (ELT) is a new treatment method for the reflux of the great saphenous vein. A successful ELT is dependent on the selection of optimum parameters required to achieve optimal vein damage while avoiding side effects ...
Alireza Rezvani-sharif, Malikeh Nabaei
doaj   +1 more source

Coupled nonautonomous inclusion systems with spatially variable exponents

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2021
A family of nonautonomous coupled inclusions governed by $p(x)$-Laplacian operators with large diffusion is investigated. The existence of solutions and pullback attractors as well as the generation of a generalized process are established.
Peter Kloeden, Jacson Simsen
doaj   +1 more source

Compactified universal jacobian and the double ramification cycle

open access: yes, 2015
Using the compactified universal jacobian over the moduli space of stable marked curves, we give an expression in terms of natural classes of the zero section of the compactified universal jacobian the (rational) Chow ring.
Dudin, Bashar
core   +1 more source

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