Results 31 to 40 of about 306,107 (293)
On old relations of Lie theory, classical geometry and gauge theory
SciPost Physics Proceedings, 2023 Having been led by hadron interactions and low-energy photoproduction to SU(4) and non-compact SU*(4) symmetry, the general background turned out to be projective geometry (PG) of $P^3$, or when considering line and Complex geometry to include gauge ...
Rolf Dahm
doaj +1 more source
Nonlinear Optical Molecular Switches for Alkali Ion Identification
Molecules, 2014 This work demonstrates by means of DFT and ab initio calculations that recognition of alkali cations can be achieved by probing the variations of the second-order nonlinear optical properties along the commutation process in spiropyran/merocyanine ...
Aurélie Plaquet +2 more
doaj +1 more source
Quadratic Forms in Random Matrices with Applications in Spectrum Sensing
EntropyQuadratic forms with random kernel matrices are ubiquitous in applications of multivariate statistics, ranging from signal processing to time series analysis, biomedical systems design, wireless communications performance analysis, and other fields ...
Daniel Gaetano Riviello +2 more
doaj +1 more source
Multiple-Output Production Modeled with Three Functional Forms
Journal of Agricultural and Resource Economics, 1992 Aggregate dual models are specified to examine multiple-output production relationships in each of four major, geographically dispersed, agricultural states (California, Iowa, Texas, and Florida).
Pedro A. Villezca-Becerra +1 more
doaj +1 more source
Beamforming Using Exact Evaluation of Leakage and Ergodic Capacity of MU-MIMO System
Sensors, 2021 Closed-form evaluation of key performance indicators (KPIs) of telecommunication networks help perform mathematical analysis under several network configurations.
Ahmad Kamal Hassan, Muhammad Moinuddin
doaj +1 more source
Normal forms for underactuated mechanical systems with symmetry [PDF]
, 2002 We introduce cascade normal forms for underactuated mechanical systems that are convenient for control design. These normal forms include three classes of cascade systems, namely, nonlinear systems in strict feedback form, feedforward form, and ...
Olfati-Saber, Reza
core +1 more source
Journal für die reine und angewandte Mathematik (Crelles Journal), 1984 Let \(u_ F(r)\) be the smallest integer such that every system of r quadratic forms in n variables, defined over a field F, has a nontrivial common zero if \(n>u_ F(r)\). Let \(u_ F(r)=\infty\) if no such integer exists. Then \(u_ F(r)\leq frac{1}{2}(r^ 2+r)u_ F(1)\) and there exist fields for which this bound is best possible when \(r=1,2,3\). If F is
openaire +2 more sources
Canonisation reper of complex of lines of theree-dimensional flag
Қарағанды университетінің хабаршысы. Математика сериясы, 2016 The paper studies the three-parameter geometric image of the line - a complex of line of three-dimensional space of the flag. It identifies the main forms that depend linearly on three basic parameters diferentials.
A.T. Musin
doaj +1 more source
A method for computing quadratic Brunovsky forms
, 2005 In this paper, for continuous, linearly-controllable quadratic control systems with a single input, an explicit, constructive method is proposed for studying their Brunovsky forms, initially studied in [W. Kang and A. J.
Jin, Wen-Long
core +3 more sources
Stochastic models of simple controlled systems just-in-time
Vestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, 2018 We propose a new and simple approach for the mathematical description of a stochastic system that implements the well-known just-in-time principle. This principle (abbreviated JIT ) is also known as a just-in-time manufacturing or Toyota Production ...
Alexander A Butov, Anatoly A Kovalenko
doaj +1 more source