Results 31 to 40 of about 13,511,913 (89)
Non‐Relativistic Limit of Dirac Hamiltonians With Aharonov–Bohm Fields
Studies in Applied Mathematics, Volume 156, Issue 4, April 2026.ABSTRACT We characterize the families of self‐adjoint Dirac and Schrödinger operators with Aharonov–Bohm magnetic field, and we exploit the non‐relativistic limit of infinite light speed to connect the former to the latter. The limit consists of the customary removal of the rest energy and of a suitable scaling, with the light speed, of the short‐scale
Matteo Gallone +2 more
wiley +1 more source
Electrical Properties of Ag-In-(Yb,Ca) Quasicrystals and Their Approximants
, 2003 We report the electrical resistivity of the ternary Ag-In-(Yb,Ca) quasicrystals (QCs) together with those of their 1/1 and 2/1 cubic approximants. The temperature coefficient of the resistivity (TCR) is negative and nearly the same for the QCs and the 2 ...
Daisuke Tetsuka +2 more
core +1 more source
Dimer models and conformal structures
Communications on Pure and Applied Mathematics, Volume 79, Issue 2, Page 340-446, February 2026.Abstract Dimer models have been the focus of intense research efforts over the last years. Our paper grew out of an effort to develop new methods to study minimizers or the asymptotic height functions of general dimer models and the geometry of their frozen boundaries.
Kari Astala +3 more
wiley +1 more source
Predictability Affects Spoken Phonological Systems Indirectly
Language and Linguistics Compass, Volume 20, Issue 1, January/February 2026.ABSTRACT The last three decades have seen a large increase in attempts to explain phonetic and phonological patterns using information theoretic properties such as frequency and predictability. One recurring theme is the attempt to explain phonetic and phonological weakening as following directly from low information content. I argue that the actuation
Uriel Cohen Priva
wiley +1 more source
Computational and Mathematical Methods, Volume 2026, Issue 1, 2026.Nonlinear dispersion phenomena in liquid media often lead to the formation of localized structures such as compact wave packets and dispersion drops. The present investigation demonstrates that the proposed analytical framework yields accurate approximate solutions, successfully captures compacton‐like structures, and clearly reveals the critical ...
Yogeshwari F. Patel +3 more
wiley +1 more source
Algorithms and literate programs for weighted low-rank approximation with missing data
, 2010 Linear models identification from data with missing values is posed as a weighted low-rank approximation problem with weights related to the missing values equal to zero.
Markovsky, Ivan, Ivan Markovsky
core +1 more source
International Journal of Energy Research, Volume 2026, Issue 1, 2026.Microgrids operating in islanded mode face significant frequency and voltage instability, particularly when dominated by inverter‐based renewable energy sources (RESs) with inherently low system inertia. This study presents a layered hierarchical control strategy that integrates three novel components: (1) an adaptive virtual synchronous generator (VSG)
Girmaw Teshager Bitew, Cheng Du
wiley +1 more source
Computational Modeling of Reticular Materials: The Past, the Present, and the Future
Advanced Materials, Volume 37, Issue 52, December 29, 2025.Reticular materials are advanced materials with applications in emerging technologies. A thorough understanding of material properties at operating conditions is critical to accelerate the deployment at an industrial scale. Herein, the status of computational modeling of reticular materials is reviewed, supplemented with topical examples highlighting ...
Wim Temmerman +3 more
wiley +1 more source
Low-rank matrix approximation with weights or missing data is NP-hard [PDF]
Weighted low-rank approximation (WLRA), a dimensionality reduction technique for data analysis, has been successfully used in several applications, such as in collaborative filtering to design recommender systems or in computer vision to recover ...
GILLIS, Nicolas, GLINEUR, François
core
Convergence of Fourier–Padé Approximants for Stieltjes Functions [PDF]
, 2006 We prove convergence of diagonal multipoint Padé approximants of Stieltjes-type functions when a certain moment problem is determinate. This is used for the study of the convergence of Fourier–Padé and nonlinear Fourier–Padé approximants for such type of
J. Mínguez Ceniceros +5 more
core +1 more source