Results 61 to 70 of about 7,643 (187)

Dual Toeplitz Operators on Bounded Symmetric Domains

Mathematics
We give some characterizations of dual Toeplitz operators acting on the orthogonal complement of the Bergman space over bounded symmetric domains. Our main result characterizes those finite sums of products of Toeplitz operators that are themselves dual ...
Jianxiang Dong
doaj   +1 more source

Quantum memory assisted observable estimation [PDF]

Quantum
The estimation of many-qubit observables is an essential task of quantum information processing. The generally applicable approach is to decompose the observables into weighted sums of multi-qubit Pauli strings, i.e., tensor products of single-qubit ...
Liubov A. Markovich, Attaallah Almasi, Sina Zeytinoğlu, Johannes Borregaard   +3 more
doaj   +1 more source

Monochromatic sums and products in $\mathbb{N}$ [PDF]

, 2016
An old question in Ramsey theory asks whether any finite coloring of the natural numbers admits a monochromatic pair $\{x+y,xy\}$. We answer this question affirmatively in a strong sense by exhibiting a large new class of non-linear patterns which can be
Joel Moreira
semanticscholar   +1 more source

Epsilon factors of representations of finite general linear groups [PDF]

Journal of Number Theory, 2019
We define epsilon factors for irreducible representations of finite general linear groups using Macdonald's correspondence. These epsilon factors satisfy multiplicativity, and are expressible as products of Gauss sums.
Rongqing Ye, Elad Zelingher
semanticscholar   +1 more source

An efficient quantum algorithm for spectral estimation

New Journal of Physics, 2017
We develop an efficient quantum implementation of an important signal processing algorithm for line spectral estimation: the matrix pencil method , which determines the frequencies and damping factors of signals consisting of finite sums of exponentially
Adrian Steffens, Patrick Rebentrost, Iman Marvian, Jens Eisert, Seth Lloyd   +4 more
doaj   +1 more source

Some sum-product estimates in matrix rings over finite fields [PDF]

, 2021
Chengfei Xie, Gennian Ge
openalex   +1 more source

A description of amalgamated free products of finite von Neumann algebras over finite‐dimensional subalgebras [PDF]

, 2009
We show that a free product of a II1‐factor and a finite von Neumann algebra with amalgamation over a finite‐dimensional subalgebra is always a II1‐factor, and provide an algorithm for describing it in terms of free products (with amalgamation over the ...
K. Dykema
semanticscholar   +1 more source

One-Step FE Model Updating Using Local Correspondence and Mode Shape Orthogonality

Shock and Vibration, 2019
In this paper, it is described how the matrix mixing model updating technique can be combined with the local correspondence (LC) mode shape expansion algorithm, to give a new finite element (FE) model updating method.
Martin Ø. Ø. Jull, Sandro D. R. Amador, Anders Skafte, Jannick B. Hansen, Manuel L. Aenlle, Rune Brincker   +5 more
doaj   +1 more source

The distribution function inequality for a finite sum of finite products of Toeplitz operators

Journal of Functional Analysis, 2005
The authors consider the problem of when a finite sum of finite products of Toeplitz operators is a compact perturbation of a Toeplitz operator. The authors introduce a generalized area function associated with a finite sum of finite products of Toeplitz operators and establish a distribution function inequality for the area function.
Guo, Kunyu, Zheng, Dechao
openaire   +1 more source

A note on sum-product estimates over finite valuation rings [PDF]

, 2021
Duc Hiep Pham
openalex   +1 more source