Results 131 to 140 of about 82,268 (195)

Signed Tropicalization of Polar Cones. [PDF]

J Optim Theory Appl
Akian M, Allamigeon X, Gaubert S, Sergeev S.   +3 more
europepmc   +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

Matrix Quantum Mechanics and Entanglement Entropy: A Review. [PDF]

Entropy (Basel)
Fliss JR, Frenkel A.
europepmc   +1 more source

Online Adaptation of Data‐Driven Controllers for Unknown Nonlinear Systems

International Journal of Robust and Nonlinear Control, Volume 36, Issue 3, Page 1086-1095, February 2026.
ABSTRACT This paper considers data‐driven online control of input‐affine nonlinear systems. By resorting to a data‐based closed‐loop time‐varying system representation, we derive data‐based online semi‐definite programs that are computed along the system's trajectory.
Xiaoyan Dai, Claudio De Persis, Nima Monshizadeh   +2 more
wiley   +1 more source

RGB image encryption using SPN with a novel block cipher over simple graph adjacency matrices and Galois fields. [PDF]

Sci Rep
Sajjad M, Alqwaifly NA.
europepmc   +1 more source

Shrouded Wind and Water Turbine Analytical Model Extensions for Tip Gaps, Center Bodies, and Flow Blockage

Wind Energy, Volume 29, Issue 2, February 2026.
ABSTRACT This paper provides improvements to a previously presented simple, accurate, lower order analytical model for predicting the performance of horizontal‐axis shrouded turbines for a wide range of shroud airfoil shapes varying in length, camber, and thickness. The new, extended model incorporates explicit quantitative predictions of those effects
M. J. Werle
wiley   +1 more source

Spin-Peierls instability of the U(1) Dirac spin liquid. [PDF]

Nat Commun
Seifert UFP, Willsher J, Drescher M, Pollmann F, Knolle J.   +4 more
europepmc   +1 more source

A general approach to the linear stability of viscoelastic shear‐flows

ZAMM - Journal of Applied Mathematics and Mechanics / Zeitschrift für Angewandte Mathematik und Mechanik, Volume 106, Issue 2, February 2026.
Abstract The present work provides an in‐depth analysis of the linear stability theory of viscoelastic shear‐flows, based upon a constitutive equation of the fading memory type. The particular model considered herein was introduced by Kenneth Walters through the integration of classical rate‐type fluids in a convected frame (Walters 1962).
Johannes Conrad, Martin Oberlack
wiley   +1 more source

Wannier functions of defective photonic crystals with broken translational symmetry. [PDF]

Sci Rep
Biswas P, Choi H, Jeong H, Kim NY, Lee CW.   +4 more
europepmc   +1 more source

Modeling Interactions and Dynamic Saturation Processes in Karst Media

Water Resources Research, Volume 62, Issue 2, February 2026.
Abstract The simulation of karst aquifers is highly challenging due to complex conduit‐matrix interactions. This study utilizes KarstFOAM, a high‐fidelity, physics‐based numerical model, to address these challenges. KarstFOAM integrates (a) a unified single‐domain Forchheimer–Darcy–Brinkman–Stokes (FDBS) formulation that transitions naturally across ...
F. Huang, Y. Gao, L. Zhao, D. Wang, X. Hu, X. Wang   +5 more
wiley   +1 more source