Results 11 to 20 of about 734,348 (361)

Upper and lower bounds for the Bregman divergence [PDF]

open access: yesJournal of Inequalities and Applications, 2019
In this paper we study upper and lower bounds on the Bregman divergence ΔFξ(y,x):=F(y)−F(x)−〈ξ,y−x〉 $\Delta_{\mathcal {F}}^{\xi }(y,x):=\mathcal {F}(y)-\mathcal {F}(x)- \langle \xi , y-x \rangle$ for some convex functional F $\mathcal {F}$ on a normed ...
Benjamin Sprung
doaj   +10 more sources

Quantum SDP-Solvers: Better upper and lower bounds [PDF]

open access: yesQuantum, 2020
Brandão and Svore \cite{brandao2016QSDPSpeedup} recently gave quantum algorithms for approximately solving semidefinite programs, which in some regimes are faster than the best-possible classical algorithms in terms of the dimension $n$ of the problem ...
Joran van Apeldoorn   +3 more
doaj   +3 more sources

Lower and upper bounds for nef cones [PDF]

open access: yesInternational Mathematics Research Notices, 2011
The nef cone of a projective variety Y is an important and often elusive invariant. In this paper we construct two polyhedral lower bounds and one polyhedral upper bound for the nef cone of Y using an embedding of Y into a toric variety. The lower bounds
Gibney, Angela, Maclagan, Diane
core   +3 more sources

Some upper and lower bounds on PSD-rank [PDF]

open access: yesMathematical programming, 2014
Positive semidefinite rank (PSD-rank) is a relatively new quantity with applications to combinatorial optimization and communication complexity. We first study several basic properties of PSD-rank, and then develop new techniques for showing lower bounds
de Wolf, Ronald, Lee, Troy, Wei, Zhaohui
core   +14 more sources

Improving bounds on packing densities of 4-point permutations [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2018
We consolidate what is currently known about packing densities of 4-point permutations and in the process improve the lower bounds for the packing densities of 1324 and 1342.
Jakub Sliacan, Walter Stromquist
doaj   +3 more sources

Estimation of upper and lower bounds of Gini coefficient by fuzzy data [PDF]

open access: yesData in Brief, 2020
The data presented in this paper are used to examine the uncertainty in macroeconomic variables and their impact on the Gini coefficient. Annual data for the period 2017 - 1996 are taken from the Bank of Iran website https://www.cbi.ir.
Reza Ashraf Ganjoei   +3 more
doaj   +2 more sources

Upper and Lower Bounds for Weak Backdoor Set Detection [PDF]

open access: yesInternational Conference on Theory and Applications of Satisfiability Testing, 2013
We obtain upper and lower bounds for running times of exponential time algorithms for the detection of weak backdoor sets of 3CNF formulas, considering various base classes.
D. Lokshtanov   +12 more
core   +2 more sources

Lower and upper bounds on the fidelity susceptibility

open access: yesPhysical Review E, 2012
We derive upper and lower bounds on the fidelity susceptibility in terms of macroscopic thermodynamical quantities, like susceptibilities and thermal average values.
D. J. C. Bures   +6 more
core   +4 more sources

Upper and lower bounds in limit analysis: Adaptive meshing strategies and discontinuous loading

open access: green, 2008
Upper and lower bounds of the collapse load factor are here obtained as the optimum values of two discrete constrained optimization problems. The membership constraints for Von Mises and Mohr–Coulomb plasticity criteria are written as a set of quadratic ...
José J. Muñoz   +3 more
openalex   +3 more sources

Upper and lower bounds for the Dunkl heat kernel [PDF]

open access: yesCalculus of Variations and Partial Differential Equations, 2021
On RN\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$\mathbb R^N$$\end ...
Jacek Dziuba'nski, Agnieszka Hejna
semanticscholar   +1 more source

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