Quasi-inverses of morphisms
Roman Sikorski (1974)
Fundamenta Mathematicae
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Roman Sikorski (1974)
Fundamenta Mathematicae
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Robert H. Lohman (1974)
Colloquium Mathematicae
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Cabiria Andreian Cazacu (1981)
Annales Polonici Mathematici
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Amouch, M. (2009)
Serdica Mathematical Journal
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2000 Mathematics Subject Classification: 47B47, 47B10, 47A30. In this note, we characterize quasi-normality of two-sided multiplication, restricted to a norm ideal and we extend this result, to an important class which contains all quasi-normal operators. Also we give some applications of this result.
Andrikopoulos, A., Stabakis, J.N. (2001)
International Journal of Mathematics and Mathematical Sciences
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Brian Conrad (2006)
Annales de l’institut Fourier
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We develop a rigid-analytic theory of relative ampleness for line bundles and record some applications to faithfully flat descent for morphisms and proper geometric objects. The basic definition is fibral, but pointwise arguments from the algebraic and complex-analytic cases do not apply, so we use cohomological properties of formal schemes over completions of local rings on rigid spaces. An analytic notion of quasi-coherence is introduced so that we can recover a proper object from...
S. K. Ghosal, M. Chatterjee (1974)
Matematički Vesnik
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D. J. Grubb (2008)
Fundamenta Mathematicae
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A quasi-linear map from a continuous function space C(X) is one which is linear on each singly generated subalgebra. We show that the collection of quasi-linear functionals has a Banach space pre-dual with a natural order. We then investigate quasi-linear maps between two continuous function spaces, classifying them in terms of generalized image transformations.
Laurent Bonavero, Andreas Höring (2007)
Annali della Scuola Normale Superiore di Pisa - Classe di Scienze
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In this paper we study the structure of manifolds that contain a quasi-line and give some evidence towards the fact that the irreducible components of degenerations of the quasi-line should determine the Mori cone. We show that the minimality with respect to a quasi-line yields strong restrictions on fibre space structures of the manifold.
T. K. Pal, M. Maiti (1977)
Matematički Vesnik
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Mohamad, Abdul M. (2002)
Mathematica Pannonica
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