Results 41 to 50 of about 181,839 (320)

Model-Based Simultaneous Multi-Slice (SMS) Reconstruction with Hankel Subspace Learning for Accelerated MR T1 Mapping

open access: yesMathematics, 2023
Herein, we propose a novel model-based simultaneous multi-slice (SMS) reconstruction method by exploiting data-driven parameter modeling for highly accelerated T1 parameter quantification.
Sugil Kim, Hua Wu, Jae-Ho Han
doaj   +1 more source

Some weighted estimates for the dbar- equation and a finite rank theorem for Toeplitz operators in the Fock space [PDF]

open access: yes, 2013
We consider the $\dbar-$ equation in $\C^1$ in classes of functions with Gaussian decay at infinity. We prove that if the right-hand side of the equation is majorated by $\exp(-q|z|^2)$, with some positive $q$, together with derivatives up to some order,
Rozenblum, Grigori, Shirokov, Nikolay
core   +1 more source

Family of the Atomic Radial Basis Functions of Three Independent Variables Generated by Helmholtz-Type Operator

open access: yesEast European Journal of Physics, 2021
The paper presents an algorithm for constructing the family of the atomic radial basis functions of three independent variables  generated by Helmholtz-type operator, which may be used as basis functions for the implementation of meshless methods for ...
Denys Protektor
doaj   +1 more source

Robustness of strong stability of semigroups [PDF]

open access: yes, 2013
In this paper we study the preservation of strong stability of strongly continuous semigroups on Hilbert spaces. In particular, we study a situation where the generator of the semigroup has a finite number of spectral points on the imaginary axis and the
Paunonen, Lassi
core   +1 more source

Finite rank intermediate Hankel operators on the Bergman space [PDF]

open access: yesSurveys in Mathematics and its Applications, 2011
In this paper we characterize the kernel of an intermediate Hankel operator on the Bergman space in terms of the inner divisors and obtain a characterization for finite rank intermediate Hankel operators.
Namita Das
doaj  

Testing Macdonald index as a refined character of chiral algebra

open access: yesJournal of High Energy Physics, 2020
We test in (A n−1 , A m−1) Argyres-Douglas theories with gcd(n, m) = 1 the proposal of Song’s in [1] that the Macdonald index gives a refined character of the dual chiral algebra.
Akimi Watanabe, Rui-Dong Zhu
doaj   +1 more source

Unbounded B-Fredholm operators on Hilbert spaces [PDF]

open access: yes, 2008
This paper is concerned with the study of a class of closed linear operators densely defined on a Hilbert space H and called B-Fredholm operators.
Berkani, M., Castro González, Nieves
core   +2 more sources

New elliptic solutions of the Yang-Baxter equation

open access: yes, 2015
We consider finite-dimensional reductions of an integral operator with the elliptic hypergeometric kernel describing the most general known solution of the Yang-Baxter equation with a rank 1 symmetry algebra.
Chicherin, D.   +2 more
core   +3 more sources

Rank Logic is Dead, Long Live Rank Logic! [PDF]

open access: yes, 2015
Motivated by the search for a logic for polynomial time, we study rank logic (FPR) which extends fixed-point logic with counting (FPC) by operators that determine the rank of matrices over finite fields.
, Pakusa, Wied
core   +1 more source

Systemic T Cell Receptor Profiling Reveals Adaptive Immune Activation and Potential Immune Signatures of Diagnosis and Brain Atrophy in Epilepsy

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Epilepsy is increasingly associated with immune dysregulation and inflammation. The T cell receptor (TCR), a key mediator of adaptive immunity, shows repertoire alterations in various immune‐mediated diseases. The unique TCR sequence serves as a molecular barcode for T cells, and clonal expansion accompanied by reduced overall TCR ...
Yong‐Won Shin   +12 more
wiley   +1 more source

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