Over the past decade a number of results concerning the relationship between causality and various energy concepts such as losslessness, passivity, and stability have been obtained [l][4] for linear networks. For nonlinear networks, however, no analogous results have been established except for the case of weakly additive networks [S], [6], wherein the linear theory holds without modification.’...

................................................................................................................................................................iii BALANCING TYCHE: NONLINEARITY AND JOINT OPERATIONS.................................................................1 THE NATURE OF PARADIGMS................................................................................... 1 LINEARI...

In this paper, a necessary and sufficient condition for a discrete-time nonlinear system to be strictly passive is derived and OFSP (Output Feedback Strictly Passive) conditions will be established. Based on the obtained OFSP conditions, an adaptive output feedback controller design method which can solve causality problems will be proposed for a discrete-time nonlinear system.

We tested the hypothesis that causality analysis, applied to the spontaneous beat-to-beat variability of heart period (HP) and systolic arterial pressure (SAP), can identify the improvement of autonomic control linked to plantar mechanical stimulation in patients with Parkinson's disease (PD). A causality index, measuring the strength of the association from SAP to HP variability, and derived a...

We tested the hypothesis that causality analysis, applied to the spontaneous beat-to-beat variability of heart period (HP) and systolic arterial pressure (SAP), can identify the improvement of autonomic control linked to plantar mechanical stimulation in patients with Parkinson’s disease (PD). A causality index, measuring the strength of the association from SAP to HP variability, and derived a...

This article presents some evidence for the presence of a causal relationship between price and volume in the crude oil futures market. The results of linear causality testing reveal the presence of causality running from volume to price but not vice versa. While the results of testing for nonlinear causality are inconsistent, most of the evidence shows that causality runs in both directions. I...

This paper examines the linear and nonlinear relationship between daily confirmed COVID-19 cases sectoral stock market volatility in India. The Granger causality test reveals bidirectional causality. Further, we observe that exists . implies historical lagged information can have a significant role predicting market.