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In this paper we consider composition operators on locally convex spaces of functions defined on $\mathbb{R}$. We prove results concerning supercyclicity, power boundedness, mean ergodicity and convergence of the iterates in the strong…

Functional Analysis · Mathematics 2022-03-22 Angela A. Albanese , Enrique Jordá , Claudio Mele

Bonet, Frerick, Peris and Wengenroth constructed a hypercyclic operator on the locally convex direct sum of countably many copies of the Banach space $\ell_1$. We extend this result. In particular, we show that there is a hypercyclic…

Functional Analysis · Mathematics 2014-02-26 Stanislav Shkarin

Let $X$ be a complex topological vector space with dim$(X)>1$ and $\mathcal{B}(X)$ the space of all continuous linear operators on $X$. In this paper, we extend the concept of supercyclicity of a single operators and strongly continuous…

Functional Analysis · Mathematics 2018-10-18 Mohamed Amouch , Otmane Benchiheb

This paper considers weak supercyclicity for bounded linear operators on a normed space. On the one hand, weak supercyclicity is investigated for classes of Hilbert-space operators: (i) self-adjoint operators are not weakly supercyclic,…

Functional Analysis · Mathematics 2021-01-29 C. S. Kubrusly , B. P. Duggal

We study strongly continuous and locally equicontinuous families of operators on sequentially complete Hausdorff locally convex spaces. In case of Saks spaces, we relate the general notions to bi-continuity as well as equitightness. In this…

Functional Analysis · Mathematics 2026-04-16 Karsten Kruse , Christian Seifert

For operators defined on locally convex spaces we define the notions of boundedness and ergodicity associated to an infinite matrix. Given two matrices $ A$ and $ B$, we study when $ A$-bounded operators are $ B$-ergodic. Using this…

Functional Analysis · Mathematics 2026-05-26 Daniel Santacreu , Pablo Sevilla-Peris

We study maximal regularity with respect to continuous functions for strongly continuous semigroups on locally convex spaces as well as its relation to the notion of admissible operators. This extends several results for classical strongly…

Functional Analysis · Mathematics 2025-10-22 Karsten Kruse , Felix L. Schwenninger

We show that every hypercyclic operator on a real locally convex space admits a dense, invariant linear manifold of hypercyclic vectors.

Functional Analysis · Mathematics 2007-05-23 Juan P. Bes

This paper deals with eigenvalues and eigenvectors of bicomplex linear operators defined on bicomplex space. We investigate the properties of these operators in the context of eigenvalues and eigenvectors, along with some relevant theorems.…

Representation Theory · Mathematics 2025-03-25 Anjali Anjali , Akhil Prakash , Amita , Prabhat Kumar

Let $\mathcal{H}$ be an infinite dimensional real or complex separable Hilbert space. We introduce a special type of a bounded linear operator $T$ and its important relation with invariant subspace problem on $\mathcal{H}$: operator $T$ is…

Dynamical Systems · Mathematics 2021-11-19 Dilan Ahmed , Mudhafar Hama , Jarosław Woźniak , Karwan Jwamer

In this paper we study, in the relaxed context of locally convex spaces, intrinsic properties of monotone operators needed for the sum conjecture for maximal monotone operators to hold under classical interiority-type domain constraints.

Functional Analysis · Mathematics 2016-12-13 M. D. Voisei

We study a hypercyclicity property of linear dynamical systems: a bounded linear operator T acting on a separable infinite-dimensional Banach space X is said to be hypercyclic if there exists a vector x in X such that {T^{n}x : n>0} is…

Functional Analysis · Mathematics 2010-09-15 Sophie Grivaux

A continuous linear operator L defined on the space of entire functions H(C) is said to be an extended $lambda$-eigenoperator of the differentiation operator D provided DL = $lambda$LD. Here we fully characterize when an extended…

Functional Analysis · Mathematics 2022-07-28 Manuel González , Fernando León-Saavedra , María Pilar Romero de la Rosa

We study the dynamics induced by an $m$-linear operator. We answer a question of B\`es and Conejero showing an example of an $m$-linear hypercyclic operator acting on a Banach space. Moreover we prove the existence of $m$-linear hypercyclic…

Functional Analysis · Mathematics 2020-01-22 Rodrigo Cardeccia

The main focus of this paper is to study multi-valued linear monotone operators in the contexts of locally convex spaces via the use of their Fitzpatrick and Penot functions. Notions such as maximal monotonicity, uniqueness,…

Functional Analysis · Mathematics 2008-10-01 M. D. Voisei , C. Zalinescu

We extend the concept of average expansivity for operators on Banach spaces to operators on arbitrary locally convex spaces. We obtain complete characterizations of the average expansive weighted shifts on Fr\'echet sequence spaces.…

Functional Analysis · Mathematics 2026-03-10 Nilson C. Bernardes , Félix Martínez-Giménez , Francisco Rodenas

In this work we shall prove new results on the theory of convolution operators on spaces of entire functions. The focus is on hypercyclicity results for convolution operators on spaces of entire functions of a given type and order; and…

Functional Analysis · Mathematics 2018-05-29 Vinícius V. Fávaro , Ariosvaldo M. Jatobá

Even linear operators on infinite-dimensional spaces can display interesting dynamical properties and yield important links among functional analysis, differential and global geometry and dynamical systems, with a wide range of…

Functional Analysis · Mathematics 2012-11-20 C. T. J. Dodson

A criterion to obtain frequent hypercyclicity for a sequence of convolution operators on the space of entire functions on the complex plane is provided. The criterion involves that the generating functions of the operators do not vanish on…

Complex Variables · Mathematics 2026-02-24 L. Bernal-González , M. C. Calderón-Moreno , J. A. Prado-Bassas

A bounded linear operator $T$ on a Banach space $X$ is called subspace-hypercyclic if there is a subspace $M \subsetneq X$ and a vector $x \in X$ such that $orb{(x,T)} \cap M$ is dense in $M$. We show that every Banach space supports…

Functional Analysis · Mathematics 2019-12-30 A. Augusto , L. Pellegrini
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