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We have shown in Theorem 3.7 that every relative graph algebra is isomorphic to a graph algebra. In Theorem 5.1 we shall prove a gauge-invariant uniqueness theo- rem for C ∗
While this paper was in preparation, semiabelian categories were introduced in [6]; we repeat from [6] that a variety of universal algebras is semiabelian if and only if it is
Hjelmborg, [3], we derived a characterization of stability for C ∗ -algebras, actually in the hope of providing a positive answer to the extension problem.. The
We also include two other examples involving tensor products of C ∗ -algebras and group representations, in which the subcategories are not only equivalent but in fact
In this paper we investigate some algorithms which produce Bernoulli numbers, Euler numbers, and tangent numbers. We also give closed formulae for Euler num- bers and tangent numbers
We consider convexly independent subsets of a given infinite set of points in the plane (Euclidean space) and evaluate the cardinality of such subsets.. It is demonstrated,
EJQTDE, 2004 No.. We will deal with a first order func- tional boundary value problem on an infinite interval, seeking positive non-zero solutions. In Section 1 we state the
In this paper we introduce the notion of linking algebra of a Hilbert module over a locally C -algebra and we extend in the context of locally C -algebras a result of Brown, Green..
