Results 71 to 80 of about 427,210 (205)
Inversion components of block Hankel-like matrices [PDF]
, 1992 The inversion problem for square matrices having the structure of a block Hankel-like matrix is studied. Examples of such matrices include Hankel striped, Hankel layered, and vector Hankel matrices.
Labahn, George
core +1 more source
In Situ pH Determination Using 1H‐MRS Acetate Chemical Shift for Noninvasive Postmortem Examinations
NMR in Biomedicine, Volume 39, Issue 7, July 2026.The chemical‐shift difference between acetate and myo‐inositol measured by MRS enables estimation of pH in the acidic range. Noninvasive pH assessment in forensic investigations is demonstrated in 58 cases and validated by measurements in extracted tissue.
Sabina Frese +4 more
wiley +1 more source
Characteristics of Hankel matrices [PDF]
Czechoslovak Mathematical Journal, 1995 It is known that given a singular Hankel matrix \(H\), the kernel of \(H\) consists of all polynomials of the form \(m(x) p(x)\), where \(m\) is an arbitrary polynomial whose degree does not exceed a certain bound. The polynomial \(p\), which is the greatest common divisor of all polynomials in the kernel of \(H\), and the bound \(b\) for the degree of
openaire +1 more source
Special Matrices, 2017 We obtain explicit interrelations between new Dyukarev-Stieltjes matrix parameters and orthogonal matrix polynomials on a finite interval [a, b], as well as the Schur complements of the block Hankel matrices constructed through the moments of the ...
Choque-Rivero A.E.
doaj +1 more source
Residual Water Suppression in MRS Using HLSVD With Automatic Component Selection Strategy
NMR in Biomedicine, Volume 39, Issue 7, July 2026.Residual water signals in magnetic resonance spectroscopy distort baselines and hinder metabolite quantification. We propose an automatic residual water removal method using HLSVD with the metric, termed as residual water to metabolite variance ratio (RWVR), to guide component selection.
Yi‐Ru Lin +2 more
wiley +1 more source
Invertibility properties of matrix wiener‐hopf plus Hankel integral operators
Mathematical Modelling and Analysis, 2008 We consider matrix Wiener‐Hopf plus Hankel operators acting between Lebesgue spaces on the real line with Fourier symbols presenting some even properties (which in particular include unitary matrix‐valued functions), and also with Fourier symbols which ...
Giorgi Bogveradze, Luís P. Castro
doaj +1 more source
An Algebraic Study of Parametric Stokes Phenomena
Studies in Applied Mathematics, Volume 157, Issue 1, July 2026.ABSTRACT We investigate geometric aspects of co‐equational parametric resurgence, by studying physical problems whose formal asymptotic solutions give rise to Borel transforms lying on an algebraic curve. This perspective allows us to elucidate concepts unique to parametric resurgence such as singularity structures, (virtual) turning points, and the ...
Inês Aniceto, Samuel Crew
wiley +1 more source
Unitary parts of contractive Hankel matrices [PDF]
Proceedings of the American Mathematical Society, 1977 For a Hankel matrix H = ( c
openaire +1 more source
On Diagonalizable Quantum Weighted Hankel Matrices
, 2022 Dedicated to the memory of Harold ...
Štampach, František +1 more
openaire +2 more sources
IEEE AccessDesigning a denoising framework for high-mobility environments is challenging due to the limited size of collected data and low latency requirements. In this paper, we introduce a neural network (NN)-assisted denoiser for sparse signals in the frequency ...
Wanjei Cho +2 more
doaj +1 more source