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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 ∗
In theorem 3, we will prove that every regular pseudoproduct space which is embedded in a projective space is, up to projections, a Segre variety.. A similar result holds for
We characterize the prime left R -modules such that the left annihilator of every element is a (two-sided) ideal of R , where R is an associative ring with unity, and we prove that if
Tietze and Nakajima proved that a closed connected locally convex set in Euclidean space is convex, thus they established a global property from a local one [9, 12, 11, 16, 17]..
In this paper, we prove forecast horizon existence and provide computational procedures for production planning problems that satisfy the following monotonicity property: for any
Thus, R is called a regular ring (named also a von Neumann ring) if each its element is regular, i. Clearly, every field is a regular ring. Besides, it is also clear that each
We now specialize to the case when E is a topos, and consider localizations of E which have the property that the localizing subcategory is closed under subobjects: as we ob- served
In Section 3, we introduce the lattice-subspace property of the asset span and show that it is necessary and su$cient for the minimum-cost portfolio insurance to be price independent
