Results 221 to 230 of about 1,787 (266)
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Projective Homotopy Classes of Stiefel Manifolds
Canadian Journal of Mathematics, 1972Given a homotopy class [f] in πn(X), we say that [f] is projective if and only if there is a homotopy commutative factorizationwhere v is the standard double covering. We then denote by the subset of projective homotopy classes in πn(X).The notion of projective homotopy classes was studied in the author's thesis [5], and the projective homotopy ...
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Concurrent Projects in Control Laboratorial Classes
2015This paper presents a laboratorial curricular unit program running in the 1st semester, 4th year of the Integrated Master in Industrial Electronics at the University of Minho. In Project I curricular unit, students designed, developed and implemented an inverted pendulum platform where different control algorithms were tested.
Soares, Filomena +4 more
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Social Class and Projective Tests
Journal of Projective Techniques, 1958F, RIESSMAN, S M, MILLER
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A Class of Projective Transformations for Linear Programming
SIAM Journal on Computing, 1990A class of projective transformations under which potential functions are invariant for linear programming is described. As a result, a new projective algorithm converging in $O(L\sqrt n)$ iterations is developed. The algorithm does not require centering conditions, and its convergence speed is improved by a factor $\sqrt n $ over Karmarkar’s ...
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A Class of Non-Desarguesian Projective Planes
Canadian Journal of Mathematics, 1957In (7), Veblen and Wedclerburn gave an example of a non-Desarguesian projective plane of order 9; we shall show that this plane is self-dual and can be characterized by a collineation group of order 78, somewhat like the planes associated with difference sets.
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A Class of Projectively Flat Finsler Metrics
Results in MathematicsThis paper deals with a certain class of projectively flat Finsler metrics. In particular, the authors study a class of Finsler metrics of cohomogeneity two on \(\mathbb{R}^{n}\), which are weakly orthogonally invariant Finsler metrics. The authors find conditions for a Finsler metric on \(\mathbb{R}\times\mathbb{R}^{n}\) to be a weakly orthogonally ...
Huaifu Liu, Xiaohuan Mo, Ling Zhu
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A class project in communication
The Speech Teacher, 1953James H. Platt, Russell L. Jenkins
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Two new classes of projective two-weight linear codes
Finite Fields and Their Applications, 2023Qunying Liao
exaly