共查询到20条相似文献，搜索用时 31 毫秒
1.
2.
3.
4.
5.
6.
7.
Peter Volkmann 《Aequationes Mathematicae》1974,11(2-3):174-182
Ohne Zusammenfassung
Herrn Prof. Dr. Alexander Dinghas zum 65. Geburtstag in Verehrung und Dankbarkeit gewidmet 相似文献
8.
In this paper, we first give some invariant subspace results for collectively compact sets of operators in connection with
the joint spectral radius of these sets. We then prove that any collectively compact set M in algΓ satisfies Berger-Wang formula, where Γ is a complete chain of subspaces of X.
相似文献
9.
Ohne Zusammenfassung
相似文献
相似文献
10.
Ohne Zusammenfassung
相似文献
相似文献
11.
12.
Abdelaziz Maouche 《Monatshefte für Mathematik》1996,122(3):205-213
In this paper we study some questions related to spectral theory in Jordan-Banach algebras. Firstly, we introduce the notion of exponential spectrum and then we extend to Jordan-Banach algebras a theorem due to Robin Harte in the associative case. Secondly, these results are used to get a theorem on spectral perturbation by inessential elements in Jordan-Banach algebras. 相似文献
13.
Tudor Zamfirescu 《Journal of Geometry》2008,88(1-2):194-199
This paper is about diameters of compact sets. These are chords of maximal length. On one hand we see that the sum of the
angles under which we see a diameter from two points of the set separated by the diameter is never smaller than 5π/6. On the other hand we describe cases in which the diameter of a point-symmetric set must join symmetric points.
相似文献
14.
Hans-Heinrich Kairies 《Aequationes Mathematicae》1985,29(1):28-35
Ohne Zusammenfassung
Herrn Professor Dr János Aczél zum 60. Geburtstag gewidmet 相似文献
15.
T. M. K. Davison 《Aequationes Mathematicae》1987,34(1):78-81
Ohne Zusammenfassung
Dedicated to Professor Otto Haupt with best wishes on his 100th birthday 相似文献
16.
Jacques Helmstetter 《Advances in Applied Clifford Algebras》2008,18(2):153-196
A meson algebra is involved in the Duffin wave equation for mesons in the same way as a Clifford algebra is involved in the
Dirac wave equation for electrons. Therefore meson algebras too should have geometrical properties after the manner of Grassmann.
Actually it is possible to define interior multiplications with similar properties, and deformations too. Every meson algebra
is a deformation of a neutral meson algebra, in the same way as (almost) every Clifford algebra is a deformation of an exterior
algebra. Some applications follow: the PBW-property is proved for all meson algebras, the injectiveness of Jacobson’s diagonal
morphism is proved with the minimal hypothesis, and the existence of Lipschitz monoids is established at least for meson algebras
over fields.
相似文献
17.
We reformulate a recent result of Arason and
Elman by giving a very simple presentation of the
powers of the fundamental ideal of the Witt ring of a field
of characteristic 2.
Sur les puissances de lidéal fondamental de lanneau de Witt
Nous reformulons un résultat récent de Arason et Elman en donnant une présentation très simple des puissances de lidéal fondamental de lanneau de Witt dun corps de caractéristique 2.相似文献
18.
19.
20.
Albert Crumeyrolle 《Periodica Mathematica Hungarica》1976,7(3-4):263-289
Sans résumé
This article is the developed text of a talk given at the Symposium on Differential Geometry in Debrecen, Hungary, on August 28–September 3, 1975. 相似文献