Results 71 to 80 of about 9,238,134 (300)
Phase portraits of Bernoulli quadratic polynomial differential systems
Electronic Journal of Differential Equations, 2020 In this article we study a new class of quadratic polynomial differential systems. We classify all global phase portraits in the Poincare disk of Bernoulli quadratic polynomial differential systems in R^2.
Jaume Llibre +2 more
doaj
Green's Functions of Non-Hermitian Systems at Exceptional Deficiency. [PDF]
Adv Sci (Weinh)We analyze the responses of a non‐Hermitian lattice system under the condition of exceptional deficiency (ED), when all bands in the system are formed by exceptional points. Using the frequency domain, we identify novel steady‐state responses that root in the broadband super‐Lorentzian Green's function (GF).
Lu C, Ma G.
europepmc +2 more sources
Advanced Functional Materials, EarlyView.USe3 is introduced as an actinide van der Waals semiconductor that mirrors the quasi‐one‐dimensional physics of transition‐metal trichalcogenides. Polarization‐resolved Raman spectroscopy on exfoliated flakes maps strong in‐plane phonon anisotropy and strain‐tunable mode shifts.
Aljoscha Söll +17 more
wiley +1 more source
The Open-Loop Discounted Linear Quadratic Differential Game for Regular Higher Order Index Descriptor Systems [PDF]
In this paper we consider the discounted linear quadratic differential game for descriptor systems that have an index larger than one. We derive both necessary and sufficient conditions for existence of an open-loop Nash (OLN) equilibrium.
Salmah, Y. +2 more
core
Advanced Functional Materials, EarlyView.A triplet‐blocking layer controls triplet exciton dynamics in blue upconversion OLEDs. The layer keeps charge transfer (CT)‐generated triplet excitons inside the triplet‐triplet annihilation (TTA) host, suppresses anode‐side interfacial quenching, and increases the steady‐state triplet population.
Qing‐Jun Shui +5 more
wiley +1 more source
On the Integrability of Persistent Quadratic Three-Dimensional Systems
MathematicsWe consider a nine-parameter familiy of 3D quadratic systems, x˙=x+P2(x,y,z), y˙=−y+Q2(x,y,z), z˙=−z+R2(x,y,z), where P2,Q2,R2 are quadratic polynomials, in terms of integrability.
Brigita Ferčec +2 more
doaj +1 more source
Control synthesis in the case of cost index with receding horizon [PDF]
INCAS BulletinA modified quadratic cost problem for linear systems utilizes receding horizon control (moving terminal constraints) to achieve asymptotic stability and effective feedback stabilization.
Ioan URSU +4 more
doaj +1 more source
On Blind Identification Of Quadratic Systems
, 1996 Publication in the conference proceedings of EUSIPCO, Trieste, Italy ...
Panos Koukoulas, Nicholas Kalouptsidis
openaire +3 more sources
On the complexity of solving quadratic Boolean systems
Journal of Complexity, 2013 25 ...
Bardet, Magali +3 more
openaire +5 more sources
Role of Structural Disorder on Phonon Transport and Thermal Conductivity in Li6PS5Br
Advanced Functional Materials, EarlyView.Solid electrolytes are fast ion and slow heat conductors. Although both transport properties are governed by lattice dynamics and atomic structure, their interplay remains poorly understood. Here, we study this interrelation in anion‐ordered and disordered Li6PS5Br.
Lukas Ketter +4 more
wiley +1 more source