Results 71 to 80 of about 9,168 (183)
Row‐Aware Randomized SVD With Applications
Numerical Linear Algebra with Applications, Volume 33, Issue 3, June 2026.ABSTRACT The randomized singular value decomposition proposed in [28] has certainly become one of the most well‐established randomization‐based algorithms in numerical linear algebra. The key ingredient of the entire procedure is the computation of a subspace which is close to the column space of the target matrix A∈ℝm×n$$ \mathbf{A}\in {\mathbb{R}}^{m\
Davide Palitta, Sascha Portaro
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Periodic lattices in Minkowski space [PDF]
, 2010 We describe a set of periodic lattices in (1+1)-dimensional Minkowski space, where each lattice has an associated symmetry group consisting of inhomogeneous Lorentz transformations that map the lattice onto itself.
Boozer, A. D.
core
Transient Porosity During Fluid‐Mineral Interaction. Part 1: In Situ 4D Tomography
Journal of Geophysical Research: Solid Earth, Volume 131, Issue 6, June 2026.Abstract Fluid‐induced mineral replacement reactions play a key role in controlling porosity generation and permeability evolution in geologic systems. However, the dynamic feedback between pore structure development and fluid transport remains poorly quantified. This study investigates the spatiotemporal evolution of reaction‐induced pore space in the
Hamed Amiri +7 more
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Transient Porosity During Fluid‐Mineral Interaction, Part 2: Reconstruction Using Generative AI
Journal of Geophysical Research: Solid Earth, Volume 131, Issue 6, June 2026.Abstract Quantifying fluid–rock interactions within the lithosphere is vital for both geological processes and applications such as CO2 ${\text{CO}}_{2}$ storage and geothermal energy development. Mineral replacement reactions generate transient pore networks that enhance fluid flow, yet many pores become isolated once reactions are completed, reducing
Hamed Amiri +5 more
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Ruled W-surfaces in Minkowski 3-space $\Re _{1}^{3}$
, 2008 summary:In this paper, we study a spacelike (timelike) ruled W-surface in Minkowski 3-space which satisfies nontrivial relation between elements of the set $\lbrace K,\ K_{II},\ H,\ H_{II}\rbrace $, where $(K, H)$ and $(K_{II}, H_{II})$ are the Gaussian ...
Abd-Ellah, H. N., Abdel-Baky, R. A.
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On L1-biconservative Lorentzian hypersurfaces of Minkowski 5-space
Boletim da Sociedade Paranaense de MatemáticaA Lorentzian hypersurface x :M^4_1 ------>L^5 isometrically immersed into the Lorentz-Minkowski 5-space L^5, is said to be L_1-biconservative if the tangent component of vector field (L_1)^2 x is identically zero, where L1 is the linearized operator associated to the first variation of 2nd mean curvature vector field on M^4_1 .
openaire +1 more source
Validation of machine learning based scenario generators
Journal of Risk and Insurance, Volume 93, Issue 2, Page 508-533, June 2026.Abstract Machine learning (ML) methods are becoming increasingly important for designing economic scenario generators for internal models. Validating data‐driven models requires different methods than validating classical, theory‐based models. We discuss two novel aspects of such validation: first, checking the multivariate distribution of risk factors,
Gero Junike, Solveig Flaig, Ralf Werner
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Star product realizations of _{K}-Minkowski space
, 2013 We define a family of star products and involutions associated with κ-Minkowski space. Applying corresponding quantization maps we show that these star products restricted to a certain space of Schwartz functions have isomorphic Banach algebra ...
Durhuus, Bergfinnur, Sitarz, Andrzej
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Enhancing Morphological Measurements of the Cosmic Web with Delaunay Tessellation Field Estimation
The Astrophysical Journal Supplement SeriesThe density fields constructed by traditional mass assignment methods are susceptible to irritating discreteness, which hinders morphological measurements of cosmic large-scale structure (LSS) through Minkowski functionals (MFs). To alleviate this issue,
Yu Liu, Yu Yu, Pengjie Zhang, Hao-Ran Yu
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Studies in Applied Mathematics, Volume 156, Issue 6, June 2026.ABSTRACT We study the long‐term dynamics of followers that selectively follow one of multiple leaders on Riemannian manifolds, where the leaders interact through repulsive forces while remaining cohesively bounded. We propose a multileader–follower multiagent system defined on Riemannian manifolds. In our model, each follower chooses exactly one leader
Hyunjin Ahn
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