Research on nonepermeable packing materials (II)
نویسندگان
چکیده
منابع مشابه
Egerváry Research Group on Combinatorial Optimization Packing Arborescences Packing Arborescences
In [7], Edmonds proved a fundamental theorem on packing arborescences that has become the base of several subsequent extensions. Recently, Japanese researchers found an unexpected further generalization which gave rise to many interesting questions about this subject [29], [20]. Another line of researches focused on covering intersecting families which generalizes Edmonds' theorems in a di eren...
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3D computer simulations and experiments are employed to study random packings of compressible spherical grains under external confining stress. In the rigid ball limit, we find a continuous transition in which the stress vanishes as (straight phi-straight phi(c))(beta), where straight phi is the (solid phase) volume density. The value of straight phi(c) depends on whether the grains interact vi...
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In a graph G = (V,E), a subset $S⊂V$ is said to be an open packing set if no two vertices of S have a common neighbour in G. The maximum cardinality of an open packing set is called the open packing number and is denoted by $ρ^{o}$. This paper further studies on this parameter by obtaining some new bounds.
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ژورنال
عنوان ژورنال: Sen'i Gakkaishi
سال: 1947
ISSN: 0037-9875,1884-2259
DOI: 10.2115/fiber.3.5_158