Results 11 to 20 of about 888,164 (293)

Bounds for singular fractional integrals and related Fourier integral operators [PDF]

Journal of Functional Analysis, 199 (2003), 48--91., 2002
We prove sharp L^p-L^q endpoint bounds for singular fractional integral operators and related Fourier integral operators, under the nonvanishing rotational curvature assumption.
Seeger, Andreas, Wainger, Stephen
arxiv   +4 more sources

Phenotypic continuum of NFU1‐related disorders

Annals of Clinical and Translational Neurology, Volume 9, Issue 12, Page 2025-2035, December 2022., 2022
Abstract Bi‐allelic variants in Iron–Sulfur Cluster Scaffold (NFU1) have previously been associated with multiple mitochondrial dysfunctions syndrome 1 (MMDS1) characterized by early‐onset rapidly fatal leukoencephalopathy. We report 19 affected individuals from 10 independent families with ultra‐rare bi‐allelic NFU1 missense variants associated with a
Rauan Kaiyrzhanov, Maha S. Zaki, Tracy Lau, Sambuddha Sen, Reza Azizimalamiri, Mina Zamani, Gözde Yeşil Sayin, Taru Hilander, Stephanie Efthymiou, Viorica Chelban, Ruth Brown, Kyle Thompson, Maria Irene Scarano, Jaya Ganesh, Kairgali Koneev, Ismail Musab Gülaçar, Richard Person, Dinara Sadykova, Yerdan Maidyrov, Tahereh Seifi, Aizhan Zadagali, Geneviève Bernard, Katrina Allis, Houda Zghal Elloumi, Amanda Lindy, Ehsan Taghiabadi, Sumit Verma, Rachel Logan, Brian Kirmse, Renkui Bai, Shaimaa M. Khalaf, Mohamed S. Abdel‐Hamid, Alireza Sedaghat, Gholamreza Shariati, Mahmoud Issa, Jawaher Zeighami, Hasnaa M. Elbendary, Garry Brown, Robert W. Taylor, Hamid Galehdari, Joseph J. Gleeson, Christopher J. Carroll, James A. Cowan, Andres Moreno‐De‐Luca, Henry Houlden, Reza Maroofian   +45 more
wiley   +1 more source

BCR algorithm and the $T(b)$ theorem [PDF]

, 2007
We show using the Beylkin-Coifman-Rokhlin algorithm in the Haar basis that any singular integral operator can be written as the sum of a bounded operator on $L^p ...
Auscher, Pascal, Yang, Qi Xiang
core   +3 more sources

Effects of pregnancy on neuromyelitis optica spectrum disorder and predictors of related attacks

Annals of Clinical and Translational Neurology, Volume 9, Issue 12, Page 1918-1925, December 2022., 2022
Abstract Objective Our study aimed to investigate the influence of pregnancy on the course of neuromyelitis optica spectrum disorders (NMOSD) and to explore the independent predictors of pregnancy‐related attacks. Methods We performed a retrospective study of patients with NMOSD based on the Wingerchuk 2006 or the revised Wingerchuk 2015 criteria ...
Qin Du, Ziyan Shi, Hongxi Chen, Ying Zhang, Yuhan Qiu, Yanlin Lang, Lingyao Kong, Hongyu Zhou   +7 more
wiley   +1 more source

Early‐onset Alzheimer's disease shows a distinct neuropsychological profile and more aggressive trajectories of cognitive decline than late‐onset

Annals of Clinical and Translational Neurology, Volume 9, Issue 12, Page 1962-1973, December 2022., 2022
Abstract Objectives Early‐ and late‐onset Alzheimer's disease (EOAD and LOAD) share the same neuropathological traits but show distinct cognitive features. We aimed to explore baseline and longitudinal outcomes of global and domain‐specific cognitive function in a well characterized cohort of patients with a biomarker‐based diagnosis.
Adrià Tort‐Merino, Neus Falgàs, Isabel E. Allen, Mircea Balasa, Jaume Olives, José Contador, Magdalena Castellví, Jordi Juncà‐Parella, Núria Guillén, Sergi Borrego‐Écija, Bea Bosch, Guadalupe Fernández‐Villullas, Oscar Ramos‐Campoy, Anna Antonell, Lorena Rami, Raquel Sánchez‐Valle, Albert Lladó   +16 more
wiley   +1 more source

Practical challenges in data‐driven interpolation: Dealing with noise, enforcing stability, and computing realizations

International Journal of Adaptive Control and Signal Processing, EarlyView., 2023
Summary In this contribution, we propose a detailed study of interpolation‐based data‐driven methods that are of relevance in the model reduction and also in the systems and control communities. The data are given by samples of the transfer function of the underlying (unknown) model, that is, we analyze frequency‐response data.
Quirin Aumann, Ion Victor Gosea
wiley   +1 more source

Some one-sided estimates for oscillatory singular integrals [PDF]

, 2014
The purpose of this paper is to establish some one-sided estimates for oscillatory singular integrals. The boundedness of certain oscillatory singular integral on weighted Hardy spaces $H^{1}_{+}(w)$ is proved. It is here also show that the $H^{1}_{+}(w)$
Fu, Zunwei, Lu, Shanzhen, Pan, Yibiao, Shi, Shaoguang   +3 more
core   +1 more source

The singular values and vectors of low rank perturbations of large rectangular random matrices [PDF]

, 2011
In this paper, we consider the singular values and singular vectors of finite, low rank perturbations of large rectangular random matrices. Specifically, we prove almost sure convergence of the extreme singular values and appropriate projections of the ...
Florent Benaych-georges, Raj, Rao Nadakuditi   +2 more
core   +4 more sources

Quarkonium bound-state problem in momentum space revisited [PDF]

, 2006
A semi-spectral Chebyshev method for solving numerically singular integral equations is presented and applied in the quarkonium bound-state problem in momentum space.
Deloff, A.
core   +3 more sources

Singular integral operators on tent spaces [PDF]

, 2012
We extend the recent results concerning boundedness of the maximal regularity operator on tent spaces. This leads us to develop a singular integral operator theory on tent spaces. Such operators have operator-valued kernels.
Auscher, Pascal, Kriegler, Christoph, Monniaux, Sylvie, Portal, Pierre   +3 more
core   +3 more sources