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In this paper, we introduce statistical bounded set on topological vector space. Also, we consider three classes of bounded operators from topological vector spaces to ordered topological vector spaces. Moreover, we give relations between…

Functional Analysis · Mathematics 2020-04-25 Abdullah Aydın , Muhammed Çınar

We stduy $L^p-L^r$ restriction estimates for algebraic varieties $V$ in the case when restriction operators act on radial functions in the finite field setting. We show that if the varieties $V$ lie in odd dimensional vector spaces over…

Analysis of PDEs · Mathematics 2012-12-24 Doowon Koh

We continue our study of operator algebras with and contractive approximate identities (cais). In earlier papers we have introduced and studied a new notion of positivity in operator algebras, with an eye to extending certain C*-algebraic…

Operator Algebras · Mathematics 2014-07-08 David P. Blecher , Charles John Read

A major part of this paper is devoted to an in-depth study of j-operators and their properties. This study enables us to obtain several results on liftings and weak liftings of DG modules along simple extensions of DG algebras and unify the…

Commutative Algebra · Mathematics 2020-12-01 Saeed Nasseh , Maiko Ono , Yuji Yoshino

In this paper we presented some connections between BCK-commutative bounded algebras, MV-algebras, Wajsberg algebras and binary block codes. Using connections between these three algebras, we will associate to each of them a binary block…

Rings and Algebras · Mathematics 2019-04-16 Cristina Flaut , Radu Vasile

All operator algebras have (not necessarily irreducible) boundary representations. A unital operator algebra has enough such boundary representations to generate its C*-envelope.

Operator Algebras · Mathematics 2007-05-23 Michael A. Dritschel , Scott McCullough

In this paper, the notion of unitary vertex operator superalgebra is introduced. It is proved that the vertex operator superalgebras associated to the unitary highest weight representations for the Neveu-Schwarz Lie superalgebra, Heisenberg…

Quantum Algebra · Mathematics 2015-10-30 Chunrui Ai , Xingjun Lin

We prove an equivalence between the following notions: (i) unitary M\"obius vertex algebras, and (ii) Wightman conformal field theories on the circle (with finite-dimensional conformal weight spaces) satisfying an additional condition that…

Mathematical Physics · Physics 2022-10-24 Christopher Raymond , Yoh Tanimoto , James E. Tener

We derive a vertex operator based expression for the kinematic numerators of Yang-Mills amplitudes by applying the momentum kernel formalism to open string amplitudes. The expression involves an $\alpha'$-weighted commutator induced by the…

High Energy Physics - Theory · Physics 2018-10-17 Chih-Hao Fu , Pierre Vanhove , Yihong Wang

The interplay between the algebraic structure (operator algebras) for the quantum observables and the convex structure of the state space has been explored for a long time and most advanced results are due to Alfsen and Shultz. Here we…

Quantum Physics · Physics 2024-11-28 Gerd Niestegge

An analysis of the boundary representations and C$^*$-envelopes of some finite-dimensional operator systems $\mathcal R$ is undertaken by considering relationships between operator-theoretic properties of a $d$-tuple $\mathfrak…

Operator Algebras · Mathematics 2026-01-26 Douglas Farenick , Chi-Kwong Li , Sushil Singla

We give a spectral theorem for unital representations of Hermitian commutative unital *-algebras by possibly unbounded operators in a pre-Hilbert space. A better result is known for the case in which the *-algebra is countably generated.

Operator Algebras · Mathematics 2024-11-13 Marco Thill

We study the phenomena that arise when we combine the standard pseudodifferential operators with those operators that appear in the study of some sub-elliptic estimates, and on strongly pseudoconvex domains. The algebra of operators we…

Classical Analysis and ODEs · Mathematics 2014-12-12 Elias M. Stein , Po-Lam Yung

In two-dimensional conformal field theory (CFT) the building blocks are given by chiral CFTs, i.e.~CFTs on the unit circle (compactified light-ray). They are generated by quantum fields depending on one light-ray coordinate only. There are…

Operator Algebras · Mathematics 2017-12-14 Sebastiano Carpi

We introduce and study twist vertex operators for a (lower-bounded generalized) twisted modules for a grading-restricted vertex (super)algebra. We prove duality, weak associativity, a Jacobi identity, a generalized commutator formula,…

Quantum Algebra · Mathematics 2019-08-28 Yi-Zhi Huang

We establish a framework for weak and strong convergence of matrix models to operator-valued semicircular systems parametrized by operator-valued covariance matrices $\eta = (\eta_{i,j})_{i,j \in I}$. Non-commutative polynomials are…

Operator Algebras · Mathematics 2025-09-30 David Jekel , Yoonkyeong Lee , Brent Nelson , Jennifer Pi

We continue the study of r-ideals, l-ideals, and HSA's in operator algebras. Some applications are made to the structure of operator algebras, including Wedderburn type theorems for a class of operator algebras. We also consider the…

Operator Algebras · Mathematics 2010-12-08 Melahat Almus , David P. Blecher , Sonia Sharma

Finite dimensional representations of extended Weyl-Heisenberg algebra are studied both from mathematical and applied viewpoints. They are used to define unitary phase operator and the corresponding eigenstates (phase states). It is also…

Quantum Physics · Physics 2015-06-11 M. Daoud , E. H. El Kinani

Weighted Rota-Baxter Jacobi-Jordan algebras and their representations are studied. Moreover, we consider weighted Rota-Baxter paired operators that are related to weighted Rota-Baxter Jacobi-Jordan algebras together with their…

Rings and Algebras · Mathematics 2025-08-14 Jules Anitchéou , Sylvain Attan

In this paper, a condition making vertex operator superalgebras to be unitary is determined and an analogue of conformal spin-statistics theorem in conformal field theory is proved. As an application of these results, it is proved that…

Quantum Algebra · Mathematics 2018-11-06 Xingjun Lin