Gel'fand inverse problem for a quadratic operator pencil by Y.V. Kurylev, M. Lassas

“…In this paper we consider the inverse boundary value problem for the operator pencil A(lambda) = a(x, D)-i lambda b(0)(x)-lambda(2) where a(x, D) is an elliptic second-order operator on a differentiable manifold M with boundary. …”
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Applications of Nijenhuis geometry III: Frobenius pencils and compatible non-homogeneous Poisson structures by Alexey Bolsinov, Andrey Konyaev, Vladimir Matveev

“…We give an algebraic interpretation of this problem in terms of Frobenius algebras and reduce it to classification of Frobenius pencils, i.e., linear families of Frobenius algebras. …”
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Equivalence transformations in linear systems theory by Paul Fretwell

“…In this work all these difficulties have been overcome. A constant pencil transformation termed Complete Equivalence (CE) is proposed, this preserves finite elementary divisors and non-unity infinite elementary divisors. …”
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Spatial neglect in the digital age: Influence of presentation format on patients' test behavior by Hannah Rosenzopf, Christoph Sperber, Franz Wortha, Daniel Wiesen, Annika Muth, Elise Klein, Korbinian Moeller, Hans-Otto Karnath

“…The investigated additional variables have the potential to aid in neglect diagnosis, in particular when the CoC cannot be validly assessed (e.g., when the test is not performed to completion).…”
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Math4Speed - a freely available measure of arithmetic fluency by Hannah D Loenneker, Krzysztof Cipora, Christina Artemenko, Mojtaba Soltanlou, Elien Bellon, Bert De Smedt, Javier García-Orza, Vaitsa Giantouli, Ismael Gutiérrez-Cordero, Katarzyna Lipowska, Jean-Philippe van Dijck, Xinru Yao, Hans-Christoph Nuerk, Julia F Huber

“…We introduce the Math4Speed (M4S), a paper-and-pencil measure incorporating the four arithmetic operations with items of varying complexity. …”
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