Results 71 to 80 of about 259,092 (193)
Tau Functions and the Limit of Block Toeplitz Determinants [PDF]
International Mathematics Research Notices, 2015 22 ...
Cafasso, Mattia, Wu, Chao-Zhong
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The Mathematical History Behind the Granger–Johansen Representation Theorem
Oxford Bulletin of Economics and Statistics, Volume 88, Issue 4, Page 587-602, August 2026.ABSTRACT When can a vector time series that is integrated once (i.e., becomes stationary after taking first differences) be described in error correction form? The answer to this is provided by the Granger–Johansen representation theorem. From a mathematical point of view, the theorem can be viewed as essentially a statement concerning the geometry of ...
Johannes M. Schumacher
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Mathematics, 2020 In this article, by using the concept of the quantum (or q-) calculus and a general conic domain Ω k , q , we study a new subclass of normalized analytic functions with respect to symmetrical points in an open unit disk.
Hari Mohan Srivastava +5 more
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Geophysical Research Letters, Volume 53, Issue 14, 28 July 2026.Abstract Accurately predicting solute transport remains a central challenge in hydrogeology due to limited data and multiscale subsurface heterogeneity. Fractional Brownian motion (fBm) is widely used to model the logarithm of hydraulic conductivity fields.
Binhao Li +2 more
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Determinants of multiplicative Toeplitz matrices [PDF]
Acta Arithmetica, 2006 In this paper we study matrices A = (aij) whose (i;j) th -entry is a function of i=j; that is, aij = f(i=j) for some f :Q + !C. We obtain a formula for the truncated determinants in the case where f is multiplicative, linking them to determinants of truncated Toeplitz matrices.
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Asian Journal of Control, Volume 28, Issue 4, Page 1722-1733, July 2026.Abstract Large swarms often adopt a hierarchical network structure that incorporates information aggregation. Although this approach offers significant advantages in terms of communication efficiency and computational complexity, it can also lead to degradation due to information constraints.
Kento Fujita, Daisuke Tsubakino
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Homogeneous Poisson Structures on Loop Spaces of Symmetric Spaces
Symmetry, Integrability and Geometry: Methods and Applications, 2008 This paper is a sequel to [Caine A., Pickrell D., Int. Math. Res. Not., to appear, arXiv:0710.4484], where we studied the Hamiltonian systems which arise from the Evens-Lu construction of homogeneous Poisson structures on both compact and noncompact type
Doug Pickrell
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Asymptotic formulas for Toeplitz determinants [PDF]
Transactions of the American Mathematical Society, 1978 The object of this paper is to find an asymptotic formula for determinants of finite dimensional Toeplitz operators generated by a class of functions with singularities. The formula is a generalization of the Strong Szegö Limit Theorem.
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Group Differences of Multiregion Glutamate Concentration in Clinical High Risk and Schizophrenia
European Journal of Neuroscience, Volume 64, Issue 1, July 2026.We investigated group effects of glutamate concentrations in 99 participants in four brain regions using proton magnetic resonance spectroscopy in clinical high risk, schizophrenia spectrum psychotic disorder individuals and healthy controls. Results showed no significant group differences, exploratory analyses showed significant positive symptom ...
Shue Kit Man +7 more
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Advanced Functional Materials, Volume 36, Issue 52, 29 June 2026.Thermally oxidized MoS2‐based radio‐frequency switches enable a multifunctional platform that unifies broadband RF switching and in‐memory computation. The device achieves a cutoff frequency of 33.2 THz with high energy efficiency and supports hardware‐aware signal processing.
Juho Son +5 more
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