Results 51 to 60 of about 3,520 (182)
Equilateral Sets in Minkowski Spaces [PDF]
Proceedings of the American Mathematical Society, 1971 The structure of equilateral sets in an n-dimensional Minkowski space M n {M^n} is shown to be closely related to the properties of antipodal sets. The range of the cardinality of maximal equilateral sets in M n {M^n} is obtained and a subset ...
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Validation of machine learning based scenario generators
Journal of Risk and Insurance, EarlyView.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
wiley +1 more source
The momentum spaces of κ-Minkowski noncommutative spacetime
Nuclear Physics B, 2020 A useful concept in the development of physical models on the κ-Minkowski noncommutative spacetime is that of a curved momentum space. This structure is not unique: several inequivalent momentum space geometries have been identified.
Fedele Lizzi +2 more
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Conull hypersurfaces in Minkowski space [PDF]
Proceedings of the American Mathematical Society, 1982 A submanifold of M = Gr(2, C 4 ) {\mathbf {M}} = {\text {Gr(2,}}{{\mathbf {C}}^4}{\text {)}} is conull when its conormal space is in ...
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The equivariant Minkowski problem in Minkowski space [PDF]
Annales de l'Institut Fourier, 2017 The classical Minkowski problem in Minkowski space asks,given a positive function φ on ℍ d , for a convex set K in Minkowski space with C 2 space-like boundary S, such that φ(η) -1 is the Gauss–Kronecker curvature at the point with normal η. Analogously to the Euclidean case, it is possible to formulate a weak version of this problem: given a Radon ...
Bonsante, Francesco +1 more
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Tensor Changepoint Detection and Eigenbootstrap
Journal of Time Series Analysis, EarlyView.ABSTRACT Tensor data consisting of multivariate outcomes over the items and across the subjects with longitudinal and cross‐sectional dependence are considered. A completely distribution‐free and tweaking‐parameter‐free detection procedure for changepoints at different locations is designed, which does not require training data.
Michal Pešta +2 more
wiley +1 more source
Minkowski box from Yangian bootstrap
Journal of High Energy Physics, 2021 We extend the recently developed Yangian bootstrap for Feynman integrals to Minkowski space, focusing on the case of the one-loop box integral. The space of Yangian invariants is spanned by the Bloch-Wigner function and its discontinuities.
Luke Corcoran +3 more
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Noûs, EarlyView.ABSTRACT How should we understand the duration of a pleasant or unpleasant sensation, insofar as its duration modulates how good or bad the experience is overall? Given that we seem able to distinguish between subjective and objective duration and that how well or badly someone's life goes is naturally thought of as something to be assessed from her ...
Andreas L. Mogensen
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DUAL TIMELIKE NORMAL AND DUAL TIMELIKE SPHERICAL CURVES IN DUAL MINKOWSKI SPACE
Süleyman Demirel Üniversitesi Fen-Edebiyat Fakültesi Fen Dergisi, 2009 : In this paper, we give characterizations of dual timelike normal and dual timelike spherical curves in the dual Minkowski 3-space and we show that every dual timelike normal curve is also a dual timelike spherical curve.
Mehmet ÖNDER
doaj
Inextensible Flows of Curves on Lightlike Surfaces
Mathematics, 2018 In this paper, we study inextensible flows of a curve on a lightlike surface in Minkowski three-space and give a necessary and sufficient condition for inextensible flows of the curve as a partial differential equation involving the curvatures of the ...
Zühal Küçükarslan Yüzbaşı +1 more
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