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Discrete polymatroids.

Vlădoiu, Marius (2006)

Analele Ştiinţifice ale Universităţii “Ovidius" Constanţa. Seria: Matematică

Distances to spaces of affine Baire-one functions

Jiří Spurný (2010)

Studia Mathematica

Let E be a Banach space and let ( B E * ) and ( B E * ) denote the space of all Baire-one and affine Baire-one functions on the dual unit ball B E * , respectively. We show that there exists a separable L₁-predual E such that there is no quantitative relation between d i s t ( f , ( B E * ) ) and d i s t ( f , ( B E * ) ) , where f is an affine function on B E * . If the Banach space E satisfies some additional assumption, we prove the existence of some such dependence.

Distribution of lattice points on hyperbolic surfaces

Vsevolod F. Lev (1996)

Acta Arithmetica

Let two lattices Λ ' , Λ ' ' s have the same number of points on each hyperbolic surface | x . . . x s | = C . We investigate the case when Λ’, Λ” are sublattices of s of the same prime index and show that then Λ’ and Λ” must coincide up to renumbering the coordinate axes and changing their directions.

Dreieckszerlegungen

Werner Raffke (1991)

Beiträge zur Algebra und Geometrie = Contributions to algebra and geometry

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