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Convex Functions on Convex Polytopes [PDF]

open access: bronzeProceedings of the American Mathematical Society, 1968
The behavior of convex functions is of interest in connection with a wide variety of optimization problems. It is shown here that this behavior is especially simple, in certain respects, when the domain is a polytope or belongs to certain classes of sets closely related to polytopes; moreover, the polytopes and related classes are actually ...
David Gale   +2 more
openalex   +3 more sources

Modulus of convexity for operator convex functions [PDF]

open access: yesJournal of Mathematical Physics, 2014
Given an operator convex function $f(x)$, we obtain an operator-valued lower bound for $cf(x) + (1-c)f(y) - f(cx + (1-c)y)$, $c \in [0,1]$. The lower bound is expressed in terms of the matrix Bregman divergence.
Kim, Isaac H.
core   +8 more sources

Convex functions [PDF]

open access: goldBulletin of the American Mathematical Society, 1948
E. F. Beckenbach
openalex   +3 more sources

Valuations on Convex Functions [PDF]

open access: yesInternational Mathematics Research Notices, 2017
All continuous, SL$(n)$ and translation invariant valuations on the space of convex functions on ${\mathbb R}^n$ are completely classified.
A. Colesanti, M. Ludwig, F. Mussnig
semanticscholar   +6 more sources

On an Inequality for Convex Functions [PDF]

open access: bronzeProceedings of the American Mathematical Society, 1956
H. D. Brunk
openalex   +3 more sources

Functions with convex means [PDF]

open access: bronzePacific Journal of Mathematics, 1964
T. K. Boehme, A. M. Bruckner
openalex   +4 more sources

Convex Functions

open access: yesConvex Optimization, 2021
This paper will analyze convex functions. In particular, it will investigate criteria for convexity. The investigation will list the criteria from the weakest to the strongest based on theorems, definitions, propositions, and various examples. The theory
Susanna Maria Zagar
semanticscholar   +1 more source

The Hadwiger Theorem on Convex Functions, I [PDF]

open access: yesGeometric and Functional Analysis, 2020
A complete classification of all continuous, epi-translation and rotation invariant valuations on the space of super-coercive convex functions on ${\mathbb{R}}^{n}$ is established.
A. Colesanti, M. Ludwig, F. Mussnig
semanticscholar   +1 more source

Stochastic model-based minimization of weakly convex functions [PDF]

open access: yesSIAM Journal on Optimization, 2018
We consider an algorithm that successively samples and minimizes stochastic models of the objective function. We show that under weak-convexity and Lipschitz conditions, the algorithm drives the expected norm of the gradient of the Moreau envelope to ...
Damek Davis, D. Drusvyatskiy
semanticscholar   +1 more source

Some new Simpson's type inequalities for coordinated convex functions in quantum calculus

open access: yesMathematical methods in the applied sciences, 2020
In this article, by using the notion of newly defined q1q2 derivatives and integrals, some new Simpson's type inequalities for coordinated convex functions are proved. The outcomes raised in this paper are extensions and generalizations of the comparable
M. Ali   +3 more
semanticscholar   +1 more source

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