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  • 1
    facet.materialart.
    Unknown
    La logia madrileña "Fraternidad iberica" durante la restauración (1985)
    Madrid : Periodicals Archive Online (PAO)
    Hispania. 45:160 (1985:mayo/agosto) 363 
    Details
    ISSN: 0018-2141
    Topics: History
    Notes: Estudios
    URL: http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&res_dat=xri:pao:&rft_dat=xri:pao:article:j513-1985-045-60-000004
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    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    Low-Pressure Injection Molding of Alumina Ceramics Using a Carnauba Wax Binder: Preliminary Results (2001)
    s.l. ; Stafa-Zurich, Switzerland
    Key engineering materials Vol. 189-191 (Feb. 2001), p. 67-72 
    Details
    ISSN: 1013-9826
    Source: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
    URL: http://www.tib-hannover.de/fulltexts/2011/0528/01/45/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.189-191.67.pdf
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    The Cayley Trick, lifting subdivisions and the Bohne-Dress theorem on zonotopal tilings (2000)
    Springer
    Journal of the European Mathematical Society 2 (2000), S. 179-198 
    Details
    ISSN: 1435-9863
    Keywords: Mathematics Subject Classification (1991): 52B11, 52B20, 14M25
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics
    Notes: Abstract. In 1994, Sturmfels gave a polyhedral version of the Cayley Trick of elimination theory: he established an order-preserving bijection between the posets of coherent mixed subdivisions of a Minkowski sum ?1+...+? r of point configurations and of coherent polyhedral subdivisions of the associated Cayley embedding ?(?1,...,? r ). In this paper we extend this correspondence in a natural way to cover also non-coherent subdivisions. As an application, we show that the Cayley Trick combined with results of Santos on subdivisions of Lawrence polytopes provides a new independent proof of the Bohne-Dress theorem on zonotopal tilings. This application uses a combinatorial characterization of lifting subdivisions, also originally proved by Santos.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s100970050003
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Quality and maximum profit of industrial tomato as affected by distribution uniformity of drip irrigation system (1996)
    Springer
    Irrigation and drainage systems 10 (1996), S. 281-294 
    Details
    ISSN: 1573-0654
    Keywords: tomato crop-water production function ; distribution uniformity ; quality of tomato ; dry matter
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract The tomato industry reformed its system of payment by weight of tomato, introducing a corrective system based on percent level of fruit dry matter produced. Such a decision implies significant changes in the management of irrigation systems, with a need to emphasize the technological quality of the marketable product. Three levels of distribution uniformity of the irrigation system are analysed, and related production functions of crop yield and percent of dry matter are presented as well as their use on the optimisation of dry matter, expected revenues and seasonal applied water. Results are critically influenced by the distribution uniformity. They demonstrate the inter-relationship between crop production, percent fruit dry matter and irrigation management, and the importance of considering non-uniformity in the economic analysis of industrial tomato production. Decreases in uniformity lead to a reduction in dry matter production per unit land. Decreases in dry matter are also observed with increasing levels of seasonally applied water, with the optimal level always lower than the required for maximum yield. Such interaction suggests a continuous and inverse relationship between profit and water applied. However, due to the corrective system of payment, by levels of percent of dry matter produced, for some uniformity, the expected revenue follows the yield-water production function instead of the dry matter function. This fact introduces disturbances in the optimal water applied inducing higher than expected levels of water applied for profit maximisation. The simulated data also show that incentives to switch to new systems or management practices able to raise the distribution uniformity result more from profit losses than increases in water price.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01102811
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    Paper (German National Licenses)
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  • 5
    Book
    Book
    Triangulations /; 25 (2010)
    Berlin [u.a.] :Springer,
    Details
    Title: Triangulations /; 25
    Author: De Loera, Jesús A.
    Contributer: Rambau, Jörg , Santos, Francisco
    Publisher: Berlin [u.a.] :Springer,
    Year of publication: 2010
    Pages: XIII, 535 S. : , Ill., graph. Darst. ; , 27 cm
    Series Statement: Algorithms and computation in mathematics 25
    ISBN: 3-642-12970-6 , 978-3-642-12970-4 , 978-3-642-12971-1
    Type of Medium: Book
    Language: English
    URL: http://d-nb.info/100142624X/04
    URL: http://deposit.d-nb.de/cgi-bin/dokserv?id=3452498&prov=M&dok_var=1&dok_ext=htm
    URL: http://www.zentralblatt-math.org/zbmath/search/?q=an%3A1207.52002
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    Zuse Institute Berlin get availability status
  • 6
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    Unknown
    The Generalized Baues Problem for Cyclic Polytopes I. (1998)
    Details
    Publication Date: 2014-11-10
    Description: The Generalized Baues Problem asks whether for a given point configuration the order complex of all its proper polyhedral subdivisions, partially ordered by refinement, is homotopy equivalent to a sphere. In this paper, an affirmative answer is given for the vertex sets of cyclic polytopes in all dimensions. This yields the first non-trivial class of point configurations with neither a bound on the dimension, the codimension, nor the number of vertice for which this is known to be true. Moreover, it is shown that all triangulations of cyclic polytopes are lifting triangulations. This contrasts the fact that in general there are many non-regular triangulations of cyclic polytopes. Beyond this, we find triangulations of $C(11,5)$ with flip deficiency. This proves---among other things---that there are triangulations of cyclic polytopes that are non-regular for every choice of points on the moment curve.
    Keywords: ddc:000
    Language: English
    Type: reportzib , doc-type:preprint
    Format: application/postscript
    Format: application/pdf
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    OPUS
  • 7
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    The Generalized Baues Problem for Cyclic Polytopes II (1999)
    Details
    Publication Date: 2014-11-10
    Description: Given an affine surjection of polytopes $\pi: P \to Q$, the Generalized Baues Problem asks whether the poset of all proper polyhedral subdivisions of $Q$ which are induced by the map $\pi$ has the homotopy type of a sphere. We extend earlier work of the last two authors on subdivisions of cyclic polytopes to give an affirmative answer to the problem for the natural surjections between cyclic polytopes $\pi: C(n,d') \to C(n,d)$ for all $1 \leq d 〈 d' 〈 n$.
    Keywords: ddc:000
    Language: English
    Type: reportzib , doc-type:preprint
    Format: application/postscript
    Format: application/pdf
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    OPUS
  • 8
    facet.materialart.
    Unknown
    The Cayley Trick, lifting subdivisions and the Bohne-Dress theorem on zonotopal tilings (1999)
    Details
    Publication Date: 2014-11-10
    Description: In 1994, Sturmfels gave a polyhedral version of the Cayley Trick of elimination theory: he established an order-preserving bijection between the posets of \emph{coherent} mixed subdivisions of a Minkowski sum $\mathcal{A}_1+\cdots+\mathcal{A}_r$ of point configurations and of \emph{coherent} polyhedral subdivisions of the associated Cayley embedding $\mathcal{C}(\mathcal{A}_1,\dots,\mathcal{A}_r)$. In this paper we extend this correspondence in a natural way to cover also \emph{non-coherent} subdivisions. As an application, we show that the Cayley Trick combined with results of Santos on subdivisions of Lawrence polytopes provides a new independent proof of the Bohne-Dress Theorem on zonotopal tilings. This application uses a combinatorial characterization of lifting subdivisions, also originally proved by Santos.
    Keywords: ddc:000
    Language: English
    Type: reportzib , doc-type:preprint
    Format: application/postscript
    Format: application/pdf
    Library Location Call Number Volume/Issue/Year Availability
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    OPUS
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