Simultaneous approximations of algebraic numbers
Enrico Bombieri (1971-1972)
Séminaire Bourbaki
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Enrico Bombieri (1971-1972)
Séminaire Bourbaki
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Bartomeu Coll, Armengol Gasull, Jaume Llibre (1988)
Publicacions Matemàtiques
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We study phase portraits of quadratic systems with a unique finite singularity. We prove that there are 111 different phase portraits without limit cycles and that 13 of them are realizable with exactly one limit cycle. In order to finish completely our study two problems remain open: the realization of one topologically possible phase portrait, and to determine the exact number of limit cycles for a subclass of these systems.
Kurz, Sascha (2009)
Serdica Journal of Computing
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We consider point sets in (Z^2,n) where no three points are on a line – also called caps or arcs. For the determination of caps with maximum cardinality and complete caps with minimum cardinality we provide integer linear programming formulations and identify some values for small n.
THOMAS L. SAATY (1999)
Revista de la Real Academia de Ciencias Exactas Físicas y Naturales
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J. L. Vega (2010)
Boletín de Estadística e Investigación Operativa. BEIO
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Jacek Błażewicz, Piotr Łukasik, Szymon Wilk (2007)
Control and Cybernetics
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F. Z. Hadjam, C. Moraga, M. K. Rahmouni (2007)
Mathware and Soft Computing
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Cherukuri Aswani Kumar (2011)
International Journal of Applied Mathematics and Computer Science
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In this paper our objective is to propose a random projections based formal concept analysis for knowledge discovery in data. We demonstrate the implementation of the proposed method on two real world healthcare datasets. Formal Concept Analysis (FCA) is a mathematical framework that offers a conceptual knowledge representation through hierarchical conceptual structures called concept lattices. However, during the design of a concept lattice, complexity plays a major role.
J. V. Armitage (1971)
Mémoires de la Société Mathématique de France
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