𝔖 Bobbio Scriptorium
✦   LIBER   ✦

The Essential Spectrum of Some Matrix Operators

✍ Scribed by F. V. Atkinson; H. Langer; R. Mennicken; A. A. Shkalikov

Publisher
John Wiley and Sons
Year
1994
Tongue
English
Weight
718 KB
Volume
167
Category
Article
ISSN
0025-584X

No coin nor oath required. For personal study only.

📜 SIMILAR VOLUMES

On some subsets of Schechter's essential
On some subsets of Schechter's essential spectrum of a matrix operator and application to transport operator
✍ Naouel Ben Ali; Aref Jeribi; Nedra Moalla 📂 Article 📅 2010 🏛 John Wiley and Sons 🌐 English ⚖ 141 KB

This paper is devoted to the investigation of the essential approximate point spectrum and the essential defect spectrum of a 2 × 2 block operator matrix on a product of Banach spaces. The obtained results are applied to a two-group transport operators with general boundary conditions in the Banach

On the essential spectrum of hypoellipti
On the essential spectrum of hypoelliptic pseudo-differential operators
✍ Ernesto Buzano; Andrea Ziggioto 📂 Article 📅 2008 🏛 John Wiley and Sons 🌐 English ⚖ 239 KB

## Abstract We describe the essential spectrum of a hypoelliptic pseudo‐differential operator which is the sum of a constantcoefficients operator and an operator with coefficients vanishing at infinity. (© 2007 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)

On the Essential Spectrum of a Class of
On the Essential Spectrum of a Class of Operators in Hilbert Space
✍ Manfred Möller 📂 Article 📅 1998 🏛 John Wiley and Sons 🌐 English ⚖ 513 KB

Abrtract. Sufficient conditions are given such that the product T1T2 of two unbounded operators in Hilbert spaces is essentially selfadjoint and that the nonzero numbers in the essential spectrum of the closure of TlT2 coincide with the nonzero numbers in the essential spectrum of T2T1. If the essen

The essential spectrum of an operator ar
The essential spectrum of an operator arising in 2-dimensional magneto-hydrodynamics
✍ M. Faierman; R. Mennicken 📂 Article 📅 2009 🏛 John Wiley and Sons 🌐 English ⚖ 132 KB

## Abstract Descloux and Geymonat considered a model problem for a plasma in a toroidal configuration and conjectured that the essential spectrum has an explicitly given band structure. This conjecture was recently proved by Faierman, Mennicken, and Möller by employing an operator matrix representa

On the structure of the essential spectr
On the structure of the essential spectrum for the three-particle Schrödinger operators on lattices
✍ Sergio Albeverio; Saidakhmat N. Lakaev; Zahriddin I. Muminov 📂 Article 📅 2007 🏛 John Wiley and Sons 🌐 English ⚖ 228 KB

## Abstract A system of three quantum particles on the three‐dimensional lattice ℤ^3^ with arbitrary dispersion functions having not necessarily compact support and interacting via short‐range pair potentials is considered. The energy operators of the systems of the two‐and three‐particles on the l