منابع مشابه
Ontology and Geographic Kinds1
An ontology of geographic kinds is designed to yield a better understanding of the ~tructure. of the geographic world, and to support the development of geographic mformat10n systems that are conceptually sound. This paper first demonstrates th~t geograp~cal obje~ts and kinds are not just larger versions of the everyday objects and kinds prev10usly studied in cognitive science. Geographic objec...
متن کاملOn rational definite summation
We present a partial proof of van Hoeij-Abramov conjecture about the algorithmic possibility of computation of finite sums of rational functions. The theoretical results proved in this paper provide an algorithm for computation of a large class of sums (1).
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be a positive definite quadratic form with determinant D R and integer coefficients a ;Call it an even form if all a ; ; are even ., an odd form if at least one a ;; is odd . Then Í,, is called non-decomposable, if it cannot be expressed as a sum of two non-negative quadratic forms with integer coefficients . Mordell 1 ) proved that f, can always be decomposed into a sum of five squares of line...
متن کاملON f-CONNECTIONS OF POSITIVE DEFINITE MATRICES
In this paper, by using Mond-Pečarić method we provide some inequalities for connections of positive definite matrices. Next, we discuss specifications of the obtained results for some special cases. In doing so, we use α-arithmetic, α-geometric and α-harmonic operator means.
متن کاملHlawka–Popoviciu inequalities on positive definite tensors
Article history: Received 13 November 2014 Accepted 25 August 2015 Available online xxxx Submitted by V. Mehrmann MSC: 15A15 15A39 15A69 46M05 47A63
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ژورنال
عنوان ژورنال: Recherches linguistiques de Vincennes
سال: 2012
ISSN: 0986-6124,1958-9239
DOI: 10.4000/rlv.2104