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We introduce a class of functional analogs of the symmetric difference metric on the space of coercive convex functions on $\mathbb{R}^n$ with full-dimensional domain. We show that convergence with respect to these metrics is equivalent to…

Functional Analysis · Mathematics 2022-10-04 Ben Li , Fabian Mussnig

Characterizations of all continuous, additive and $\mathrm{GL}(n)$-equivariant endomorphisms of the space of convex functions on a Euclidean space $\mathbb{R}^n$, of the subspace of convex functions that are finite in a neighborhood of the…

Metric Geometry · Mathematics 2023-03-29 Georg C. Hofstätter , Jonas Knoerr

Scalarization method is an important tool in the study of vector optimization as corresponding solutions of vector optimization problems can be found by solving scalar optimization problems. This is applied by Du (2010) [A note on cone…

General Topology · Mathematics 2011-09-23 Huseyin Cakalli , Ayse Sonmez , Cigdem Genc

Consider a measurable space with an atomless finite vector measure. This measure defines a mapping of the $\sigma$-field into an Euclidean space. According to the Lyapunov convexity theorem, the range of this mapping is a convex compactum.…

Probability · Mathematics 2011-02-14 Peng Dai , Eugene A. Feinberg

This paper is one in a series that investigates topological measures on locally compact spaces. A topological measure is a set function which is finitely additive on the collection of open and compact sets, inner regular on open sets, and…

General Topology · Mathematics 2021-03-18 Svetlana V. Butler

We study universal approximation of continuous functionals on compact subsets of products of Hilbert spaces. We prove that any such functional can be uniformly approximated by models that first take finitely many continuous linear…

Machine Learning · Computer Science 2026-02-04 Andrey Krylov , Maksim Penkin

Observations which are realizations from some continuous process are frequent in sciences, engineering, economics, and other fields. We consider linear models, with possible random effects, where the responses are random functions in a…

Statistics Theory · Mathematics 2016-11-30 Giacomo Aletti , Caterina May , Chiara Tommasi

There are presented certain results on extending continuous linear operators defined on spaces of E-valued continuous functions (defined on a compact Hausdorff space X) to linear operators defined on spaces of E-valued measurable functions…

Functional Analysis · Mathematics 2017-05-26 Piotr Niemiec

In this paper, we first define the concept of convexity in G-metric spaces. We then use Mann iterative process in this newly defined convex G-metric space to prove some convergence results for some classes of mappings. In this way, we can…

General Topology · Mathematics 2021-11-23 Isa Yildirim , Safeer Hussain Khan

We analyze a class of sublinear functionals which characterize the interior and the exterior of a convex cone in a normed linear space.

Functional Analysis · Mathematics 2011-06-20 B. F. Svaiter

In 1973, E.J. McShane proposed an alternative definition of the Lebesgue integral based on Riemann sums, where gauges are used decide what tagged partitions are allowed. Such an approach does not require any preliminary knowledge of Measure…

Classical Analysis and ODEs · Mathematics 2018-07-20 Augusto C. Ponce , Jean Van Schaftingen

A review of the state of the art of the comparison between any two different modes of convergence of sequences of measurable functions is carried out with focus on the algebraic structure of the families under analysis. As a complement of…

Functional Analysis · Mathematics 2026-04-10 L. Bernal-González , M. C. Calderón-Moreno , P. J. Gerlach-Mena , J. A. Prado-Bassas

The space of Gaussian measures on a Euclidean space is geodesically convex in the $L^2$-Wasserstein space. This space is a finite dimensional manifold since Gaussian measures are parameterized by means and covariance matrices. By…

Differential Geometry · Mathematics 2009-02-11 Asuka Takatsu

We study a characterization of BV and Sobolev functions via nonlocal functionals in metric spaces equipped with a doubling measure and supporting a Poincar\'e inequality. Compared with previous works, we consider more general functionals.…

Functional Analysis · Mathematics 2022-07-07 Panu Lahti , Andrea Pinamonti , Xiaodan Zhou

In this paper convergence theorems for sequences of scalar, vector and multivalued Pettis integrable functions on a topological measure space are proved for varying measures vaguely convergent.

Functional Analysis · Mathematics 2023-07-04 Luisa Di Piazza , Valeria Marraffa , Kazimierz Musial , Anna Rita Sambucini

Angular equivalence is introduced and shown to be an equivalence relation among the norms on a fixed real vector space. It is a finer notion than the usual (topological) notion of norm equivalence. Angularly equivalent norms share certain…

Functional Analysis · Mathematics 2023-01-18 Eder Kikianty , Gord Sinnamon

We study the local and global versions of the convexity, which is closely related to the problem of extending a convex function on a non-convex domain to a convex function on the convex hull of the domain and beyond the convex hull. We also…

Classical Analysis and ODEs · Mathematics 2013-08-08 Min Yan

We study non-linear functionals, including quasi-linear functionals, p-conic quasi-linear functionals, d-functionals, r-functionals, and their relationships to deficient topological measures and topological measures on locally compact…

Functional Analysis · Mathematics 2019-02-18 Svetlana V. Butler

The paper is devoted to a comprehensive second-order study of a remarkable class of convex extended-real-valued functions that is highly important in many aspects of nonlinear and variational analysis, specifically those related to…

Optimization and Control · Mathematics 2015-07-21 Boris S. Mordukhovich , M. Ebrahim Sarabi

All continuous, SL$(n)$ and translation invariant valuations on the space of convex functions on ${\mathbb R}^n$ are completely classified.

Functional Analysis · Mathematics 2019-06-18 Andrea Colesanti , Monika Ludwig , Fabian Mussnig