Results 81 to 90 of about 8,796 (232)
Möbius-type hypersurface in 4-space [PDF]
, 2018 Möbius-type hypersurface in the four dimensional Euclidean space is defined.
Hacısalihoğlu, Hasan Hilmi +1 more
core
, 1997 In this paper we apply for the first time a new method for multivariate equation solving which was developed in for complex root determination to the real case.
Heintz, Joos +3 more
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A birational description of the minimal exponent
Journal of the London Mathematical Society, Volume 114, Issue 2, August 2026.Abstract We give a description of the minimal exponent of a hypersurface using higher direct images of suitably twisted sheaves of log forms on a log resolution.
Qianyu Chen, Mircea Mustaţă
wiley +1 more source
Safe Stabilization Using Non‐Smooth Control Lyapunov Barrier Function
International Journal of Robust and Nonlinear Control, Volume 36, Issue 11, Page 5823-5835, 25 July 2026.ABSTRACT This paper addresses the challenge of safe stabilization, ensuring the system state reaches the origin while avoiding unsafe state regions. Existing approaches that rely on smooth Lyapunov barrier functions often fail to guarantee a feasible controller. To overcome this limitation, we introduce the non‐smooth control Lyapunov barrier function (
Jianglin Lan +3 more
wiley +1 more source
A quintic hypersurface in P4 with 130 nodes [PDF]
, 1992 In this note we describe a quintic hypersurface in \(P^4\) with 130 ordinary double points.
van Straten, Duco, Straten, Duco van
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MathematicsIn this article, we investigate Ricci solitons occurring on spacelike hypersurfaces of Einstein Lorentzian manifolds. We give the necessary and sufficient conditions for a spacelike hypersurface of a Lorentzian manifold, equipped with a closed conformal ...
Norah Alshehri, Mohammed Guediri
doaj +1 more source
Quantum fields and entanglement on a curved lightfront
Physics Letters B, 2015 We consider field quantization on an arbitrary null hypersurface in curved spacetime. We discuss the de Sitter horizon as the simplest example, relating the horizon quantization to the standard Fock space in the cosmological patch.
Illan Halpern, Yasha Neiman
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A geometric flow on null hypersurfaces of Lorentzian manifolds
Topological Algebra and its Applications, 2022 We introduce a geometric flow on a screen integrable null hypersurface in terms of its local second fundamental form. We use it to give an alternative proof to the vorticity free Raychaudhuri’s equation for null hypersurface, as well as establishing ...
Massamba Fortuné, Ssekajja Samuel
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Journal of Geophysical Research: Atmospheres, Volume 131, Issue 13, 16 July 2026.Abstract Monitoring water vapor during extreme events is crucial for understanding atmospheric physics, as well as for improving the prediction of severe weather and enhancing early warning systems. The major gap in monitoring water vapor during extreme events lies in the limited spatial and temporal resolutions of existing techniques.
P. Mateus +4 more
wiley +1 more source
Surface and form in contemporary architecture / Paviršius ir forma šiuolaikinėje architektūroje
Mokslas: Lietuvos Ateitis, 2012 Architectural form in contemporary architecture gains more and more independence and visual difference from the tectonic structure of the building. Many researchers of contemporary architecture separate a building’s “skin” from its carcass.
Algimantas M. Mačiulis
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