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Fibers of multi-graded rational maps and orthogonal projection onto rational surfaces
(Society for Industrial and Applied Mathematics, 2020-06)
We contribute a new algebraic method for computing the orthogonal projections of a point onto a rational algebraic surface embedded in the three-dimensional projective space. This problem is first turned into the computation ...
On the computation of rational points of a hypersurface over a finite field
(Academic Press Inc Elsevier Science, 2016-07)
We design and analyze an algorithm for computing rational points of hypersurfaces defined over a finite field based on searches on vertical strips, namely searches on parallel lines in a given direction. Our results show ...
Há lugar para uma “racionalidade científica” no pensamento de Paul Feyerabend?
(Universidade do Vale do Rio dos Sinos, 2012-04-04)
The aim of this dissertation is to investigate whether there is room for “scientific rationality” in the writings of Paul Feyerabend and, if so, in what terms this concept is expressed. My starting point is Feyerabend’s ...
Há lugar para uma “racionalidade científica” no pensamento de Paul Feyerabend?
(Universidade do Vale do Rio dos Sinos, 2012-04-04)
The aim of this dissertation is to investigate whether there is room for “scientific rationality” in the writings of Paul Feyerabend and, if so, in what terms this concept is expressed. My starting point is Feyerabend’s ...
Fixed points and rational representations of actions in abelian varieties
(2015)
In this talk we will present some known and new results on the relations between fixed
points of an endomorphism of an abelian variety and its rational representation.
We will also discuss the natural generalization to the ...
On the denominator values and barycentric weights of rational interpolants
(Elsevier B.V., 2007-03-15)
We improve upon the method of Zhu and Zhu [A method for directly finding the denominator values of rational interpolants, J. Comput. Appl. Math. 148 (2002) 341-348] for finding the denominator values of rational interpolants, ...
Rational Decision and Intuitive Decision
(Escuela Superior de Guerra Conjunta de las Fuerzas Armadas, 2015)
Rational Decision and Intuitive Decision
(Escuela Superior de Guerra Conjunta de las Fuerzas Armadas, 2015)
Eventually minimal curves
(Springer, 2005-04-01)
A curve defined over a finite field is maximal or minimal according to whether the number of rational points attains the upper or the lower bound in Hasse-Weil's theorem, respectively. In the study of maximal curves a ...
Eventually minimal curves
(Springer, 2005-04-01)
A curve defined over a finite field is maximal or minimal according to whether the number of rational points attains the upper or the lower bound in Hasse-Weil's theorem, respectively. In the study of maximal curves a ...