Results 251 to 260 of about 14,781 (299)
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Involutions and Coninvolutions
Numerical Analysis and Applications, 2023Summary: A review of the relatively little-known matrix class, called coninvolutions, is given. The properties of these matrices are compared with those of the well studied involutory matrices or, briefly, involutions.
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First Canadian Conference on Computer and Robot Vision, 2004. Proceedings., 2004
In this paper, we propose an iterative method of 3D location of 2D parallelogram or 3D parallelepiped shapes by monocular vision from a single image. The method we propose assumes that the camera is calibrated and that the size of the polygonal object is known. The 3D location is obtained in the following way.
Mohamed Bénallal, Jean Meunier
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In this paper, we propose an iterative method of 3D location of 2D parallelogram or 3D parallelepiped shapes by monocular vision from a single image. The method we propose assumes that the camera is calibrated and that the size of the polygonal object is known. The 3D location is obtained in the following way.
Mohamed Bénallal, Jean Meunier
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Rapidly Involuting Congenital Hemangioma with Fetal Involution
Pediatric Dermatology, 2014AbstractUncommon congenital hemangiomas differ from common infantile hemangiomas in their appearance, postnatal behavior, histopathology, and immunohistologic staining. Two types are well described in the literature: noninvoluting congenital hemangioma (NICH) and rapidly involuting congenital hemangioma (RICH).
Sheilagh, Maguiness +4 more
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Varieties of involution semigroups and involution semirings: a survey.
Bulletin of Society of Mathematicians of Banja Luka, 2002zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Crvenković, Siniša, Dolinka, Igor
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The Annals of Mathematics, 1969
Let X be a topological space with A c X a subspace, and let z-: (X, A) (X, A) be an involution; i.e., a continuous map z-: X X with square the identity and such that MA c A. Combining the notions of bordism (Atiyah [1]) and of differentiable periodic maps (Conner and Floyd [4]), one may define bordism groups of the involution (X, A, z). Specifically, a
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Let X be a topological space with A c X a subspace, and let z-: (X, A) (X, A) be an involution; i.e., a continuous map z-: X X with square the identity and such that MA c A. Combining the notions of bordism (Atiyah [1]) and of differentiable periodic maps (Conner and Floyd [4]), one may define bordism groups of the involution (X, A, z). Specifically, a
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JAMA: The Journal of the American Medical Association, 1965
The involuting hemangioma, or strawberry birthmark, is small or absent at the time of birth. During the first six or eight months of life it increases rapidly in size, and then gradually regresses over the next one to five years. In the uncomplicated lesion the best eventual result is achieved with no treatment at all. Observation alone is not possible,
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The involuting hemangioma, or strawberry birthmark, is small or absent at the time of birth. During the first six or eight months of life it increases rapidly in size, and then gradually regresses over the next one to five years. In the uncomplicated lesion the best eventual result is achieved with no treatment at all. Observation alone is not possible,
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International Journal of Foundations of Computer Science, 2007
In this paper we study a generalization of the classical notions of bordered and unbordered words, motivated by DNA computing. DNA strands can be viewed as finite strings over the alphabet {A, G, C, T}, and are used in DNA computing to encode information. Due to the fact that A is Watson-Crick complementary to T and G to C, DNA single strands that are
Lila Kari, Kalpana Mahalingam
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In this paper we study a generalization of the classical notions of bordered and unbordered words, motivated by DNA computing. DNA strands can be viewed as finite strings over the alphabet {A, G, C, T}, and are used in DNA computing to encode information. Due to the fact that A is Watson-Crick complementary to T and G to C, DNA single strands that are
Lila Kari, Kalpana Mahalingam
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The Mathematical Gazette, 1947
We prove some theorems on commutative involutions in a “real” projective geometry in which cobasal homographie ranges may have 0, 1 or 2 self-corresponding points (and therefore a conic and a general line in its plane have 0, 1 or 2 points of intersection).
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We prove some theorems on commutative involutions in a “real” projective geometry in which cobasal homographie ranges may have 0, 1 or 2 self-corresponding points (and therefore a conic and a general line in its plane have 0, 1 or 2 points of intersection).
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The Annals of Mathematics, 1957
1. R. H. Bing [1] has given an example of an involution of a 3-sphere whose fixed points constitute a wild (horned) 2-sphere. This shows that an involution in a euclidean n-sphere, SO, is not necessarily conjugate, in the group of homeomorphisms SO' -* S~', to an orthogonal transformation (cf. Problem 39 in [2]).
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1. R. H. Bing [1] has given an example of an involution of a 3-sphere whose fixed points constitute a wild (horned) 2-sphere. This shows that an involution in a euclidean n-sphere, SO, is not necessarily conjugate, in the group of homeomorphisms SO' -* S~', to an orthogonal transformation (cf. Problem 39 in [2]).
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Canadian Journal of Mathematics, 1974
In this note we prove some results which assert that under certain conditions the involution on a prime ring must satisfy a form of positive definiteness. As a consequence of the first of our theorems we obtain a fairly short and simple proof of a recent theorem of Lanski [3].
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In this note we prove some results which assert that under certain conditions the involution on a prime ring must satisfy a form of positive definiteness. As a consequence of the first of our theorems we obtain a fairly short and simple proof of a recent theorem of Lanski [3].
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