Displaying similar documents to “The Lvov years of Wacław Sierpiński”

A note on Professor Jan Grzegorz Krzyż

Eligiusz Złotkiewicz (2011)

Annales Universitatis Mariae Curie-Sklodowska, sectio A – Mathematica

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[Editor's note: a webpage dedicated to Professor Jan Grzegorz Krzyż is available at the address http://math.umcs.lublin.pl/Krzyz/]

PROBLEMS

M. Chrobak, M. Habib, P. John, H. Sachs, H. Zernitz, J. R. Reay, G. Sierksma, M. M. Sysło, T. Traczyk, W. Wessel (1987)

Applicationes Mathematicae

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Edison and St. Cyril: Seeking Common Ground. Presentation at Honorary Degree Award Ceremony

Friedman, Edward (2015)

Serdica Journal of Computing

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Rector Biolchev, Dean Mitev, and distinguished guests: I have been trying hard in recent months to avoid listening to pompous pronouncements about a new millennium. My instincts as a scientist and as a mathematician tell me that this view of the passage of time is relative. After all, this is year 1420 in the Islamic calendar, thus placing us in the 15th century, while the Jewish calendar notes that the year is 5760 which is in the 58th century, not the 21st.

Estimation of the noncentrality matrix of a noncentral Wishart distribution with unit scale matrix. A matrix generalization of Leung's domination result.

Heinz Neudecker (2004)

SORT

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The main aim is to estimate the noncentrality matrix of a noncentral Wishart distribution. The method used is Leung's but generalized to a matrix loss function. Parallelly Leung's scalar noncentral Wishart identity is generalized to become a matrix identity. The concept of Löwner partial ordering of symmetric matrices is used.

Education of future geography teachers in Slovenia

Tatjana Resnik Planinc (2019)

Annales Universitatis Paedagogicae Cracoviensis Studia Geographica

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This paper presents the development of the didactics of geography at the Department of Geography, Faculty of Arts, University of Ljubljana from its beginnings in the 19th century up to the present day. Important milestones are discussed and the present situation described. The author first discusses how different approaches were developed over the years, then focuses on the current situation through the presentation of some selected ways of educating, equipping and developing a good...

A Simple Example of Localized Parametric Resonance for the Wave Equation

Colombini, Ferruccio, Rauch, Jeffrey (2008)

Serdica Mathematical Journal

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2000 Mathematics Subject Classification: 35L05, 35P25, 47A40. The problem studied here was suggested to us by V. Petkov. Since the beginning of our careers, we have benefitted from his insights in partial differential equations and mathematical physics. In his writings and many discussions, the conjuction of deep analysis and specially interesting problems has been a source inspiration for us. The research of J. Rauch is partially supported by the U.S. National...

Professor Edward A. Friedman in a Nutshell

Editors (2015)

Serdica Journal of Computing

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Edward A. Friedman is Professor Emeritus of Technology Management at Stevens Institute of Technology. His undergraduate and doctoral degrees in Physics are from MIT (1957) and Columbia University (1963), respectively. As Dean of Stevens Institute of Technology (1973–1983) he led innovations on applications of computer and networking technologies in undergraduate education, which were studied and emulated by universities worldwide. Dr. Friedman was responsible for the pioneering requirement...

A matrix derivation of a representation theorem for (tr A).

Heinz Neudecker (1989)

Qüestiió

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A matrix derivation of a well-known representation theorem for (tr A) is given, which is the solution of a restricted maximization problem. The paper further gives a solution of the corresponding restricted minimization problem.

Integral formula for secantoptics and its application

Witold Mozgawa, Magdalena Skrzypiec (2012)

Annales Universitatis Mariae Curie-Sklodowska, sectio A – Mathematica

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Some properties of secantoptics of ovals defined by Skrzypiec in 2008 were proved by Mozgawa and Skrzypiec in 2009. In this paper we generalize to this case results obtained by Cieslak, Miernowski and Mozgawa in 1996 and derive an integral formula for an annulus bounded by a given oval and its secantoptic. We describe the change of the area bounded by a secantoptic and find the differential equation for this function. We finish with some examples illustrating the above results. ...

A note on the scalar Haffian.

Heinz Neudecker (2000)

Qüestiió

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In this note a uniform transparent presentation of the scalar Haffian will be given. Some well-known results will be generalized. A link will be established between the scalar Haffian and the derivative matrix as developed by Magnus and Neudecker.