Results 21 to 30 of about 2,048,973 (296)

Sum Uncertainty Relation in Quantum Theory [PDF]

open access: yes, 2006
We prove a new sum uncertainty relation in quantum theory which states that the uncertainty in the sum of two or more observables is always less than or equal to the sum of the uncertainties in corresponding observables.
A.K. Pati   +15 more
core   +2 more sources

Optimal Control of Background-Based Uncertain Systems with Applications in DC Pension Plan

open access: yesEntropy, 2022
In this paper, we propose a new optimal control model for uncertain systems with jump. In the model, the background-state variables are incorporated, where the background-state variables are governed by an uncertain differential equation.
Wei Liu   +3 more
doaj   +1 more source

Almost Sure Stability for Multi-Dimensional Uncertain Differential Equations

open access: yesMathematics, 2022
Multi-dimensional uncertain differential equation is a tool to model an uncertain multi-dimensional dynamic system. Furthermore, stability has a significant role in the field of differential equations because it can be describe the effect of the initial ...
Rong Gao
doaj   +1 more source

Statistical patterns of theory uncertainties

open access: yesSciPost Physics Core, 2023
A comprehensive uncertainty estimation is vital for the precision program of the LHC. While experimental uncertainties are often described by stochastic processes and well-defined nuisance parameters, theoretical uncertainties lack such a description. We study uncertainty estimates for cross-section predictions based on scale variations across a large ...
Ghosh, Aishik   +5 more
openaire   +5 more sources

On the Edge-Connectivity of an Uncertain Random Graph

open access: yesIEEE Access, 2020
Connectivity is one of the most important concepts in graph theory. When graph theory is applied to complex systems with indeterminate factors, uncertainty and randomness are two basic types of indeterminacy.
Hao Li, Hui Zhang
doaj   +1 more source

Short-Distance Space-Time Structure and Black Holes in String Theory : A Short Review of the Present Status [PDF]

open access: yes, 1998
We briefly review the present status of string theory from the viewpoint of its implications on the short-distance space-time structure and black hole physics.
Amati   +58 more
core   +2 more sources

On the Entropy and the Maximum Entropy Principle of Uncertain Variables

open access: yesEntropy, 2023
A new variance formula is developed using the generalized inverse of an increasing function. Based on the variance formula, a new entropy formula for any uncertain variable is provided.
Yujun Liu, Guanzhong Ma
doaj   +1 more source

Worldvolume Uncertainty Relations for D-Branes [PDF]

open access: yes, 1999
By quantizing an open string ending on a D-brane in a nontrivial supergravity background, we argue that there is a new kind of uncertainty relation on a D-brane worldvolume.
A. Connes   +47 more
core   +2 more sources

On the Vertex-Connectivity of an Uncertain Random Graph

open access: yesIEEE Access, 2020
In many practical problems, randomness and uncertainty simultaneously appear in one complex system or network. When graph theory is applied to these problems, these complex systems or networks are usually represented by uncertain random graphs, in which ...
Hao Li, Xin Gao
doaj   +1 more source

Leave- $p$ -Out Cross-Validation Test for Uncertain Verhulst-Pearl Model With Imprecise Observations

open access: yesIEEE Access, 2019
Regression analysis is to establish the regression relationship between dependent variables and independent variables. The data of traditional regression model are often assumed to be observed precisely. However this assumption holds only sometimes.
Shiqin Liu
doaj   +1 more source

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