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Convex Functions and Spacetime Geometry

open access: yes, 2001
Convexity and convex functions play an important role in theoretical physics. To initiate a study of the possible uses of convex functions in General Relativity, we discuss the consequences of a spacetime $(M,g_{\mu \nu})$ or an initial data set $(\Sigma,
  +12 more
core   +2 more sources

Conic geometric optimisation on the manifold of positive definite matrices

open access: yes, 2014
We develop \emph{geometric optimisation} on the manifold of Hermitian positive definite (HPD) matrices. In particular, we consider optimising two types of cost functions: (i) geodesically convex (g-convex); and (ii) log-nonexpansive (LN).
Hosseini, Reshad, Sra, Suvrit
core   +1 more source

Hermite–Hadamard–Fejér type inequalities for p-convex functions

open access: yesArab Journal of Mathematical Sciences, 2017
In this paper, firstly, Hermite–Hadamard–Fejér type inequalities for p-convex functions are built. Secondly, an integral identity and some Hermite–Hadamard–Fejér type integral inequalities for p-convex functions are obtained.
Mehmet Kunt, İmdat İşcan
doaj   +1 more source

Handling convexity-like constraints in variational problems

open access: yes, 2014
We provide a general framework to construct finite dimensional approximations of the space of convex functions, which also applies to the space of c-convex functions and to the space of support functions of convex bodies.
Mérigot, Quentin, Oudet, Edouard
core   +3 more sources

Inequalities of Jensen type for \(AH\)-convex functions

open access: yesJournal of Numerical Analysis and Approximation Theory, 2016
Some integral inequalities of Jensen type for AH-convex functions defined on intervals of real line are given. Applications for power and logarithm functions are provided as well.
Sever Dragomir
doaj   +2 more sources

On the Sublinear Convergence Rate of Multi-Block ADMM

open access: yes, 2015
The alternating direction method of multipliers (ADMM) is widely used in solving structured convex optimization problems. Despite of its success in practice, the convergence properties of the standard ADMM for minimizing the sum of $N$ $(N\geq 3)$ convex
Lin, Tianyi   +2 more
core   +1 more source

New inequalities of Hermite-Hadamard type for HA-convex functions

open access: yesJournal of Numerical Analysis and Approximation Theory, 2018
Some new inequalities of Hermite-Hadamard type for HA-convex functions defined on positive intervals are given.
Sever Dragomir
doaj   +2 more sources

Inequalities of Jensen type for h-convex functions on linear spaces [PDF]

open access: yesMathematica Moravica, 2015
Some inequalities of Jensen type for h-convex functions defined on convex subsets in real or complex linear spaces are given. Applications for norm inequalities are provided as well.
Sever Silvestru Dragomir
doaj  

Hermite-Hadamard type inequalities for p-convex functions via fractional integrals

open access: yesMoroccan Journal of Pure and Applied Analysis, 2017
In this paper, we present Hermite-Hadamard inequality for p-convex functions in fractional integral forms. we obtain an integral equality and some Hermite-Hadamard type integral inequalities for p-convex functions in fractional integral forms.
Kunt Mehmet, İşcan İmdat
doaj   +1 more source

Hermite-Hadamard type inequalities for Wright-convex functions of several variables

open access: yes, 2014
We present Hermite--Hadamard type inequalities for Wright-convex, strongly convex and strongly Wright-convex functions of several variables defined on ...
Wasowicz, Sz., Śliwińska, D.
core   +2 more sources

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