879 resultados para Ulm-Kaplansky Invariants


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Signatur des Originals: S 36/G02707

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The notion of a differential invariant for systems of second-order differential equations on a manifold M with respect to the group of vertical automorphisms of the projection is de?ned and the Chern connection attached to a SODE allows one to determine a basis for second-order differential invariants of a SODE.

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Rational invariants on the space of all structures of algebras on a two-dimensional vector space

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Moment invariants have been thoroughly studied and repeatedly proposed as one of the most powerful tools for 2D shape identification. In this paper a set of such descriptors is proposed, being the basis functions discontinuous in a finite number of points. The goal of using discontinuous functions is to avoid the Gibbs phenomenon, and therefore to yield a better approximation capability for discontinuous signals, as images. Moreover, the proposed set of moments allows the definition of rotation invariants, being this the other main design concern. Translation and scale invariance are achieved by means of standard image normalization. Tests are conducted to evaluate the behavior of these descriptors in noisy environments, where images are corrupted with Gaussian noise up to different SNR values. Results are compared to those obtained using Zernike moments, showing that the proposed descriptor has the same performance in image retrieval tasks in noisy environments, but demanding much less computational power for every stage in the query chain.

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La HfG abrió sus puertas en 1953 con el objetivo de regenerar a través del diseño una sociedad devastada tras la guerra. Abordó, fusionando formación académica y politécnica, el diseño de todo tipo de objetos bajo una perspectiva racional. Sin embargo, pronto surgió la controversia dentro de su claustro. Esta investigación pretende revisar no solo los motivos del arquitecto Max Bill en su defensa del Curso Preliminar de adiestramiento estético, sino también por qué surgieron como reacción las tesis antiestéticas del teórico Tomás Maldonado y del diseñador Otl Aicher, que antepusieron sucesivamente, frente a la pedagogía idealista de Max Bill, la metodología científica y la praxis proyectual. HfG was founded in 1953 with the aim of transforming, through design, a devastated postwar society. By combining academic and polytechnic training, it endeavored to design all kinds of objects through a rational perspective. However, controversy soon emerged amongst the faculty. This research seeks to review not only the motivation of the architect Max Bill in defending the Preliminary Course of esthetical training, but also to explain the reasons that led to the unaesthetic reactions of the theorist Tomas Maldonado and the designer Otl Aicher, who successively prioritised scientific methodology and project praxis as alternatives to Max Bill's idealist pedagogy.

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This layer is a georeferenced raster image of the historic paper map entitled: Ulma memorabilis ac permunita libera Imperii Civitas ad Danubium, ubi Ilara et Blavus ei miscentur = Ulm eine considerable Freye Reichs Statt in Schwaben, wo die Flüsse Iler u. Blau in die Donau fallen, verfertigt durch Matthaeum Seutter, Seiner Kayserl. u. Königl. Cathol. Majest. Geogr. in Augspurg. It was published by Matthaeus Seutter, ca. 1740. Scale [ca. 1:4,300]. Covers Ulm, Germany. Map in Latin and German. The image inside the map neatline is georeferenced to the surface of the earth and fit to the Deutsches Hauptdreiecksnetz (DHDN) 3-degree Gauss-Kruger Zone 3 coordinate system. All map collar and inset information is also available as part of the raster image, including any inset maps, profiles, statistical tables, directories, text, illustrations, index maps, legends, or other information associated with the principal map. This map shows features such as roads, drainage, built-up areas and selected buildings, fortifications, ground cover, and more. Relief shown pictorially. Includes also index, text, and panorama of Ulm seen from the North East.This layer is part of a selection of digitally scanned and georeferenced historic maps from the Harvard Map Collection. These maps typically portray both natural and manmade features. The selection represents a range of originators, ground condition dates, scales, and map purposes.

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Mode of access: Internet.

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"Reproduction d'un cours professé pendant le semestre d'été 1920-1921 à la Faculté des sciences de Paris.--Introd.

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Available on demand as hard copy or computer file from Cornell University Library.

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Özege, M. S. Eski harflerle,

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Published in 1896 under the title: A fair pioneer.

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Available on demand as hard copy or computer file from Cornell University Library.

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Mode of access: Internet.