Directory UMM :Journals:Journal_of_mathematics:GMJ:
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To see why this is so, we will first describe the Weyl algebra - an algebra of operators on the Hilbert space of states of the quantum harmonic oscillator - then see how to
Double forms are abundant in Riemannian geometry: the metric, Ricci and Einstein tensors are symmetric double forms of degree 1, The Riemann curvature tensor, Weyl curvature tensor
In this paper we study several arithmetic functions connected with the exponen- tial divisors of integers.. We establish some asymptotic formulas under the Riemann hypothesis,
Earlier the problem of Krull dimension was investigated only for some particular cases, namely, for Weyl algebras [2], a ring of differ- ential operators [7,8], as well as for rings
We establish sufficient conditions for the global attractivity of the positive equilibrium for some scalar delayed population models.. As an illustration of the criterion established,
In this note, we study sufficient conditions for which we have the stability of Weyl’s theorems and property ( w ), under perturbations by finite rank operators, compact operators,
Another example [16, Example 7] shows that there exist operators for which Browder’s theorem holds, while the spectral mapping theorem for the Weyl spectrum fails.. The
Our paper finds sufficient conditions for the curvature tensor (or the Ricci tensor) determines the Levi-Civita connection. On a Weyl manifold, we consider some special connections
