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We study some classes of algebras of operators on non-Archimedean Banach spaces. In particular, we propose a non-Archimedean version of the crossed product construction.

Functional Analysis · Mathematics 2013-08-28 Anatoly N. Kochubei

We describe some classes of linear operators on Banach spaces over non-Archimedean fields, which admit orthogonal spectral decompositions. Several examples are given.

Functional Analysis · Mathematics 2012-09-07 Anatoly N. Kochubei

We describe a subclass of the class of normal operators on Banach spaces over non-Archimedean fields (A. N. Kochubei, J. Math. Phys. 51 (2010), article 023526) consisting of operators whose properties resemble those of unitary operators. In…

Functional Analysis · Mathematics 2011-02-22 Anatoly N. Kochubei

Differentiations of operator algebras over non-archimedean spherically complete fields are investigated. Theorems about a differentiation being internal are demonstrated.

Functional Analysis · Mathematics 2012-10-09 S. V. Ludkovsky

We develop a duality theory for multiplier Banach-Hopf algebras over a non-Archimedean field K. As examples, we consider algebras corresponding to discrete groups and zero-dimensional locally compact groups with K-valued Haar measure, as…

Rings and Algebras · Mathematics 2016-03-23 Anatoly N. Kochubei

The article is devoted to the investigation of properties of quasi-invariant measures with values in non-Archimedean fields such as: convolutions of measures and functions; continuity of functions of measures; non-associative noncommutative…

Rings and Algebras · Mathematics 2018-12-18 S. V. Ludkovsky

In this article we study a class of non-Archimedean pseudodifferential operators whose symbols are negative definite functions. We prove that these operators extend to generators of Feller semigroups. In order to study these operators, we…

Probability · Mathematics 2017-12-06 Anselmo Torresblanca-Badillo , W. A. Zúñiga-Galindo

Foundations of the theory of vertex algebras are extended to the non-Archimedean setting.

Quantum Algebra · Mathematics 2023-04-20 Victor G. Kac

The article is devoted to the investigation of operators on a non locally compact group algebra. Their isomorphisms are also studied.

Functional Analysis · Mathematics 2018-12-18 S. V. Ludkovsky

The operator algebra is introduced based on the framework of logarithmic representation of infinitesimal generators. In conclusion a set of generally-unbounded infinitesimal generators is characterized as a module over the Banach algebra.

Functional Analysis · Mathematics 2018-03-07 Yoritaka Iwata

We introduce $p$-adic operator algebras, which are nonarchimedean analogues of $C^*$-algebras. We demonstrate that various classical examples of operator algebras - such as group(oid) $C^*$-algebras - have nonarchimedean counterparts. The…

Operator Algebras · Mathematics 2025-03-25 Alcides Buss , Luiz Felipe Garcia , Devarshi Mukherjee

We investigate pseudodifferential operators on arbitrary locally compact abelian groups. As symbol classes for the Kohn-Nirenberg calculus we introduce a version of Sjoestrand's class. Pseudodifferential operators with such symbols form a…

Functional Analysis · Mathematics 2007-05-23 Karlheinz Grochenig , Thomas Strohmer

We answer, by counterexample, several open questions concerning algebras of operators on a Hilbert space. The answers add further weight to the thesis that, for many purposes, such algebras ought to be studied in the framework of operator…

Operator Algebras · Mathematics 2007-05-23 David P. Blecher , Bojan Magajna

The recursion operators admitted by different operator Burgers equations, in the framework of the study of nonlinear evolution equations, are here con- sidered. Specifically, evolution equations wherein the unknown is an operator acting on…

Analysis of PDEs · Mathematics 2018-02-21 Sandra Carillo , Mauro Lo Schiavo , Cornelia Schiebold

We consider weakly closed transitive algebras of operators containing non-zero compact operators in real Banach spaces (Lomonosov algebras). It is shown that they are naturally divided in three classes: the algebras of real, complex and…

Functional Analysis · Mathematics 2022-10-20 Edward Kissin , Victor S. Shulman , Yurii V. Turovskii

Jordan operator algebras are norm-closed spaces of operators on a Hilbert space which are closed under the Jordan product. The discovery of the present paper is that there exists a huge and tractable theory of possibly nonselfadjoint Jordan…

Operator Algebras · Mathematics 2017-12-20 David P. Blecher , Zhenhua Wang

In this thesis we explore the the possibility of characterising C* algebras by their (non-isometric) Banach algebra structure alone. We introduce a property of Banach algebras, the Total Reduction Property, and conjecture that a Banach…

Operator Algebras · Mathematics 2013-11-18 James A Gifford

Examples of operator algebras with involution include the operator $*$-algebras occurring in noncommutative differential geometry studied recently by Mesland, Kaad, Lesch, and others, several classical function algebras, triangular matrix…

Operator Algebras · Mathematics 2019-02-20 David P. Blecher , Zhenhua Wang

An explicit vertex operator algebra construction is given of a class of irreducible modules for toroidal Lie algebras.

Quantum Algebra · Mathematics 2007-05-23 S. Berman , Y. Billig , J. Szmigielski

This paper presents a systematic operator theory approach for abstract structure of Banach measure algebras over coset spaces of compact subgroups. Let $H$ be a compact subgroup of a locally compact group $G$ and $G/H$ be the left coset…

Functional Analysis · Mathematics 2019-05-02 Arash Ghaani Farashahi
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