Results 31 to 40 of about 4,714,518 (295)
Electronic Journal of Qualitative Theory of Differential Equations, 2023 This paper deals with fundamental properties of Poincaré half-maps defined on a straight line for planar linear systems. Concretely, we focus on the analyticity of the Poincaré half-maps, their series expansions (Taylor and Newton–Puiseux) at the ...
Victoriano Carmona +3 more
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, 2011 A new concept of using focus-diverse point spread functions (PSFs) for modal wavefront sensing (WFS) is explored. This is based on relatively straightforward image moment analysis of measured PSFs, which differentiates it from other focal-plane wavefront
Lee, Hanshin
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On the time evolution at a fluctuating exceptional point
Nanophotonics, 2019 We theoretically evaluate the impact of drift-free noise on the dynamics of PT${\cal P}{\cal T}$-symmetric non-Hermitian systems with an exceptional point, which have recently been proposed for sensors.
Wolff Christian +2 more
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Mathematics, 2021 The existence of homoclinic orbits or heteroclinic cycle plays a crucial role in chaos research. This paper investigates the existence of the homoclinic orbits to a saddle-focus equilibrium point in several classes of three-dimensional piecewise affine ...
Yanli Chen, Lei Wang, Xiaosong Yang
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Localization in non-chiral network models for two-dimensional disordered wave mechanical systems
, 1998 Scattering theoretical network models for general coherent wave mechanical systems with quenched disorder are investigated. We focus on universality classes for two dimensional systems with no preferred orientation: Systems of spinless waves undergoing ...
A. Dohmen +26 more
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Emergent Symmetry and Conserved Current at a One Dimensional Incarnation of Deconfined Quantum Critical Point [PDF]
, 2019 The deconfined quantum critical point (DQCP) was originally proposed as a continuous transition between two spontaneous symmetry breaking phases in 2D spin-1/2 systems.
Huang, Rui-Zhen +4 more
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Generalized solutions and distributional shadows for Dirac equations
, 2018 We discuss the application of recent results on generalized solutions to the Cauchy problem for hyperbolic systems to Dirac equations with external fields.
D.-A. Deckert +7 more
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Pediatric Blood &Cancer, EarlyView.ABSTRACT Pediatric gastroenteropancreatic neuroendocrine neoplasms (GEP‐NENs) are extremely rare and clinically heterogeneous. Management has largely been extrapolated from adult practice. This European Standard Clinical Practice Guideline (ESCP), developed by the EXPeRT network in collaboration with adult NEN experts, provides (adult) evidence ...
Michaela Kuhlen +23 more
wiley +1 more source
Studies in African Linguistics, 1984 This paper examines the different properties of what we have termed "auxiliary focus": the interaction between focus and the semantic features of tense. aspect, mood. and polarity.
Larry M. Hyman, John R. Watters
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Status of the current parabolic dish technology [PDF]
, 1981 Vu-graphs are presented that show that point focus distributed receiver distributed generation systems are cost competitive with current utilities. System cost caveats and typical power module costs are described.
Sumrall, C.
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