An application of the method wherein the - and - methods are combined for the determination of the grating constant. [I.]
Swami Jnanananda (1936)
Časopis pro pěstování matematiky a fysiky
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Swami Jnanananda (1936)
Časopis pro pěstování matematiky a fysiky
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Thomas L. Saaty (2008)
RACSAM
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According to the great mathematician Henri Lebesgue, making direct comparisons of objects with regard to a property is a fundamental mathematical process for deriving measurements. Measuring objects by using a known scale first then comparing the measurements works well for properties for which scales of measurement exist. The theme of this paper is that direct comparisons are necessary to establish measurements for intangible properties that have no scales of measurement. In that case...
THOMAS L. SAATY (1999)
Revista de la Real Academia de Ciencias Exactas Físicas y Naturales
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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.
Mirosław Chmiel, Edward Hrynkiewicz (2010)
Control and Cybernetics
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Karina Gibert, Ulises Cortés (1997)
Mathware and Soft Computing
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Description of individuals in ill-structured domains produces messy data matrices. In this context, automated classification requires the management of those kind of matrices. One of the features involved in clustering is the evaluation of distances between individuals. Then, a special function to calculate distances between individuals partially simultaneously described by qualitative and quantitative variables is required. In this paper properties and details of the metrics...
Piotr Szynkarczyk (2004)
Control and Cybernetics
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