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    Article

    FINITE ELEMENTS IN ORDERED BANACH SPACES WITH POSITIVE BASES

    We characterize finite elements, an order-theoretic concept in Archimedean vector lattices, in the setting of ordered Banach spaces with positive unconditional basis as vectors having finite support with respe...

    Andreas Heinecke, Martin R. Weber in Journal of Mathematical Sciences (2023)

  2. Article

    Open Access

    Bayesian splines versus fractional polynomials in network meta-analysis

    Network meta-analysis (NMA) provides a powerful tool for the simultaneous evaluation of multiple treatments by combining evidence from different studies, allowing for direct and indirect comparisons between tr...

    Andreas Heinecke, Marta Tallarita, Maria De Iorio in BMC Medical Research Methodology (2020)

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    Chapter

    Dialog im Dunkeln: Ausstellungen als soziale Unternehmen

    Die Idee ist denkbar einfach: In völlig abgedunkelten Räumen führen blinde Menschen das Publikum in kleinen Gruppen durch eine Ausstellung. Aus Düften, Winden, Temperaturen, Tönen und Texturen werden ein Park,...

    Andreas Heinecke in Handbuch Entrepreneurship (2018)

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    Article

    Duality for Frames

    The subject of this article is the duality principle, which, well beyond its stand at the heart of Gabor analysis, is a universal principle in frame theory that gives insight into many phenomena. Its fiber mat...

    Zhitao Fan, Andreas Heinecke, Zuowei Shen in Journal of Fourier Analysis and Applications (2016)

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    Living Reference Work Entry In depth

    Dialog im Dunkeln: Ausstellungen als soziale Unternehmen

    Die Idee ist denkbar einfach: In völlig abgedunkelten Räumen führen blinde Menschen das Publikum in kleinen Gruppen durch eine Ausstellung. Aus Düften, Winden, Temperaturen, Tönen und Texturen werden ein Park,...

    Andreas Heinecke in Handbuch Entrepreneurship

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    Article

    Spectral Tetris Fusion Frame Constructions

    Spectral tetris is a flexible and elementary method to construct unit norm frames with a given frame operator, having all of its eigenvalues greater than or equal to two. One important application of spectral ...

    Peter G. Casazza, Matthew Fickus in Journal of Fourier Analysis and Applicatio… (2012)

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    Chapter

    Strategies for Scaling in Social Entrepreneurship

    Learning goals

    Andreas Heinecke, Judith Mayer in Social Entrepreneurship and Social Business (2012)

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    Article

    Sparse fusion frames: existence and construction

    Fusion frame theory is an emerging mathematical theory that provides a natural framework for performing hierarchical data processing. A fusion frame can be regarded as a frame-like collection of subspaces in a Hi...

    Robert Calderbank, Peter G. Casazza in Advances in Computational Mathematics (2011)

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    Chapter

    Blindheit als Vermögen. Über Potenziale, die im Dunkeln liegen

    In Paul Austers Roman Travels in the Scriptorium wird die Geschichte eines alten Mannes erzählt, der sich unversehens in einem einfachen Zimmer befindet – ein Bett, ein Stuhl, ein Tisch, auf dem einige Manuskript...

    Andreas Heinecke, Clemens Sedmak in Vermögenskultur (2011)

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    Chapter and Conference Paper

    Business Process-Based Testing of Web Applications

    Software testing claims a big amount of software development costs as a rule. Particularly, manually operated software tests are on the critical path during realising a software product since the execution of ...

    Andreas Heinecke, Tobias Griebe, Volker Gruhn in Business Process Management Workshops (2011)