Results 91 to 100 of about 6,028,400 (221)

Markov Determinantal Point Process for Dynamic Random Sets

Journal of Time Series Analysis, EarlyView.
ABSTRACT The Law of Determinantal Point Process (LDPP) is a flexible parametric family of distributions over random sets defined on a finite state space, or equivalently over multivariate binary variables. The aim of this paper is to introduce Markov processes of random sets within the LDPP framework. We show that, when the pairwise distribution of two
Christian Gouriéroux, Yang Lu
wiley   +1 more source

A paradox in bosonic energy computations via semidefinite programming relaxations

New Journal of Physics, 2013
We show that the recent hierarchy of semidefinite programming relaxations based on non-commutative polynomial optimization and reduced density matrix variational methods exhibits an interesting paradox when applied to the bosonic case: even though it can
M Navascués, A García-Sáez, A Acín, S Pironio, M B Plenio   +4 more
doaj   +1 more source

Assessing the Mixing Quality of Hetero‐Aggregates: Applying Mixing Theory to STEM‐EDX Elemental Maps

Particle &Particle Systems Characterization, Volume 43, Issue 2, February 2026.
This study introduces a quantitative method to assess the mixing quality of carbon black‐silica hetero‐aggregates formed in spray flames. Using STEM‐EDX mapping and concepts from mixing theory, the approach characterizes intra‐ and inter‐aggregate homogeneity and particle clustering, enabling precise, composition‐independent evaluation of hetero ...
Simon Buchheiser, Orkun Furat, Volker Schmidt, Hermann Nirschl, Frank Rhein   +4 more
wiley   +1 more source

Analyzing the Free States of one Quantum Resource Theory as Resource States of Another

Advanced Quantum Technologies, Volume 9, Issue 2, February 2026.
The article investigates how free states in one quantum resource theory can become highly resourceful in another. It systematically studies multipartite entanglement, fermionic non‐Gaussianity, imaginarity, realness, spin coherence, Clifford non‐stabilizerness, Sn‐equivariance, and non‐uniform entanglement, combining rigorous analytical tools and ...
Andrew E. Deneris, Paolo Braccia, Pablo Bermejo, N. L. Diaz, Antonio A. Mele, M. Cerezo   +5 more
wiley   +1 more source

Multi‐Objective Robust Controller Synthesis With Integral Quadratic Constraints in Discrete‐Time

International Journal of Robust and Nonlinear Control, Volume 36, Issue 3, Page 935-954, February 2026.
ABSTRACT This article presents a novel framework for the robust controller synthesis problem in discrete‐time systems using dynamic Integral Quadratic Constraints (IQCs). We present an algorithm to minimize closed‐loop performance measures such as the ℋ∞$$ {\mathscr{H}}_{\infty } $$‐norm, the energy‐to‐peak gain, the peak‐to‐peak gain, or a ...
Lukas Schwenkel, Johannes Köhler, Matthias A. Müller, Carsten W. Scherer, Frank Allgöwer   +4 more
wiley   +1 more source

Correcting for finite statistics effects in a quantum steering experiment

Physical Review Research
Verifying entanglement between parties is essential for creating secure quantum communication. However, finite statistics can lead to false positive outcomes in any tests for entanglement.
Sophie Engineer, Ana C. S. Costa, Alexandre C. Orthey, Jr., Xiaogang Qiang, Jianwei Wang, Jeremy L. O'Brien, Jonathan C. F. Matthews, Will McCutcheon, Roope Uola, Sabine Wollmann   +9 more
doaj   +1 more source

Data‐Driven Sliding Mode Control for Partially Unknown Nonlinear Systems

International Journal of Robust and Nonlinear Control, Volume 36, Issue 2, Page 629-638, 25 January 2026.
ABSTRACT This paper presents a novel data‐driven control framework for multi‐input multi‐output (MIMO) nonlinear systems with partially unknown dynamics and bounded disturbances. In practical scenarios, exact cancellation of system nonlinearities is often infeasible due to limited model information and unpredictable disturbances.
Jianglin Lan, Xianxian Zhao, Congcong Sun   +2 more
wiley   +1 more source

Semidefinite relaxation detector for higher-order modulated multiple-antenna systems

Tongxin xuebao, 2007
A semidefinite relaxation detector of 64-QAM signals was proposed,which is derived from rank relaxation and Lagrange bidual programming respectively.Computational complexity analyses and simulation results demonstrate the detector can make a good ...
YANG Yi-jin, ZHAO Chun-ming, XU Wei, ZHOU Peng   +3 more
doaj   +2 more sources

Observer‐Based Stabilization of Positive Linear System With Disturbances

International Journal of Robust and Nonlinear Control, Volume 36, Issue 2, Page 732-746, 25 January 2026.
ABSTRACT This article addresses the disturbance rejection and output stabilization control of positive linear systems. First, two disturbance observers (DOs) are proposed to estimate actuator‐channel and sensor‐channel disturbances, while a positive state observer is designed for state estimation.
Changsheng Zhou, Bohao Zhu, Xiaoqi Song, Jason Jinrong Liu, Yukang Cui, James Lam   +5 more
wiley   +1 more source

Array pattern synthesis using semidefinite programming and a bisection method

ETRI Journal, 2019
In this paper, we propose an array pattern synthesis scheme using semidefinite programming (SDP) under array excitation power constraints. When an array pattern synthesis problem is formulated as an SDP problem, it is known that an additional rank‐one ...
Jong‐Ho Lee, Jeongsik Choi, Woong‐Hee Lee, Jiho Song   +3 more
doaj   +1 more source