Results 61 to 70 of about 219,754 (206)

Existence theorem for a unique solution to a coupled system of impulsive fractional differential equations in complex-valued fuzzy metric spaces

open access: yesAdvances in Difference Equations, 2021
In this manuscript, the existence theorem for a unique solution to a coupled system of impulsive fractional differential equations in complex-valued fuzzy metric spaces is studied and the fuzzy version of some fixed point results by using the definition ...
Humaira   +3 more
doaj   +1 more source

Development of a Prediction Model for Progression Risk in High‐Grade Gliomas Based on Habitat Radiomics and Pathomics

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To investigate the value of constructing models based on habitat radiomics and pathomics for predicting the risk of progression in high‐grade gliomas. Methods This study conducted a retrospective analysis of preoperative magnetic resonance (MR) images and pathological sections from 72 patients diagnosed with high‐grade gliomas (52 ...
Yuchen Zhu   +14 more
wiley   +1 more source

Clustering Algorithm Reveals Dopamine‐Motor Mismatch in Cognitively Preserved Parkinson's Disease

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To explore the relationship between dopaminergic denervation and motor impairment in two de novo Parkinson's disease (PD) cohorts. Methods n = 249 PD patients from Parkinson's Progression Markers Initiative (PPMI) and n = 84 from an external clinical cohort.
Rachele Malito   +14 more
wiley   +1 more source

Positive Fixed Points for Semipositone Operators in Ordered Banach Spaces and Applications

open access: yesAbstract and Applied Analysis, 2013
The theory of semipositone integral equations and semipositone ordinary differential equations has been emerging as an important area of investigation in recent years, but the research on semipositone operators in abstract spaces is yet rare.
Zengqin Zhao, Xinsheng Du
doaj   +1 more source

Almost periodic solutions of periodic linear partial functional differential equations

open access: yes, 2018
We study conditions for the abstract periodic linear functional differential equation $\dot{x}=Ax+F(t)x_t+f(t)$ to have almost periodic with the same structure of frequencies as $f$.
Luong, Vu Trong, Van Minh, Nguyen
core   +1 more source

Impact of Asymptomatic Intracranial Hemorrhage on Outcome After Endovascular Stroke Treatment

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Background Endovascular treatment (EVT) achieves high rates of recanalization in acute large‐vessel occlusion (LVO) stroke, but functional recovery remains heterogeneous. While symptomatic intracranial hemorrhage (sICH) has been well studied, the prognostic impact of asymptomatic intracranial hemorrhage (aICH) after EVT is less certain ...
Shihai Yang   +22 more
wiley   +1 more source

Antiperiodic Boundary Value Problems for Finite Dimensional Differential Systems

open access: yesBoundary Value Problems, 2009
We study antiperiodic boundary value problems for semilinear differential and impulsive differential equations in finite dimensional spaces. Several new existence results are obtained.
O'Regan D   +3 more
doaj  

Evolution Equations with Liouville Derivative on R without Initial Conditions

open access: yesMathematics
New classes of evolution differential equations with the Liouville derivative in Banach spaces are studied. Equations are considered on the whole real line and are not endowed by the initial conditions.
Vladimir E. Fedorov, Nadezhda M. Skripka
doaj   +1 more source

On the Henstock-Kurzweil Integral for Riesz-space-valued Functions on Time Scales

open access: yes, 2017
We introduce and investigate the Henstock-Kurzweil (HK) integral for Riesz-space-valued functions on time scales. Some basic properties of the HK delta integral for Riesz-space-valued functions are proved.
Brown, André EX   +11 more
core   +8 more sources

Monotone iterative method for abstract impulsive integro-differential equations with nonlocal conditions in Banach spaces [PDF]

open access: yesApplications of Mathematics, 2014
The paper deals with the abstract impulsive problem of the form \[ \begin{aligned} & u'(t)+A\,u(t)=f(t,u(t),(Gu)(t)),\quad t\in [0,a]\setminus \{t_1,t_2,\dots ,t_m\},\\ & u(t_k+)=u(t_k)+I_k(u(t_k)),\quad k=1,2,\dots ,m,\\ & u(0)=x_0+g(u),\end{aligned}\tag{P} \] where ...
Chen, Pengyu, Li, Yongxiang
openaire   +2 more sources

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