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Local extrema for Procrustes problems in the set of positive definite matrices
(Elsevier Science Inc, 2020-05)
Given two positive definite matrices A and B, a well known result by Gelfand, Naimark and Lidskii establishes a relationship between the eigenvalues of A and B and those of AB by means of majorization inequalities. In this ...
Informacion morfometrica en estudios interpoblacionales: Una comparación de técnicas basadas en proporciones y coordenadas Procrustes
(Asociación de Antropología Biológica Argentina, 2011-06)
Tradicionalmente se ha abordado el estudio de la variación morfológica mediante técnicas estadísticas uni y multivariadas aplicadas principalmente a proporciones calculadas sobre distancias lineales entre puntos anatómicos ...
Morfometría geométrica alar para la identificación de Chrysomya albiceps y C. megacephala (Diptera: Calliphoridae) de Venezuela
(Universidad de Costa Rica, 2012)
Genetic diversity, ancestry relationships and consensus among phenotype and genotype in banana (Musa acuminata) clones from Aormosa (Argentina) farmers
(International Knowledge Press, 2016-10)
Though banana is a tropical crop, the Argentinean Northeastern Province of Formosa has extensively promoted its production. Genetic variation was assessed by the Amplified Fragment Length Polymorphism (AFLP) in a set of ...
Procrustes analysis as a tool for land management
(Elsevier Science, 2010-03)
Generalized Procrustes analysis (GPA) is a multivariate technique that involves transformations of data matrices to provide optimal comparability. We propose GPA to quantify the concordance among sets of variables that ...
A resistant method for landmark-based analysis of individual asymmetry in two dimensions
(Springer, 2016-12)
BackgroundSymmetry of biological structures can be thought as the repetition of their parts in different positions and orientations. Asymmetry analyses, therefore, focuses on identifying and measuring the location and ...