Mathematisches Institut Georg-August-Universität Göttingen

Mathematisches Institut Georg-August-Universität Göttingen PDF

Author: Yuri Tschinkel

Publisher: Universitätsverlag Göttingen

Published: 2005

Total Pages: 226

ISBN-13: 3938616172

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This volume contains lecture notes from the seminars "Number Theory", "Algebraic Geometry" and "Twisted Cohomology Theories" which took place at the Mathematics Institute of the University of Göttingen during the Winter Term 2004/2005. Most contributions report on recent work by the authors.

Mathematisches Institut Georg-august-universität Göttingen, Seminars Summer Term 2004

Mathematisches Institut Georg-august-universität Göttingen, Seminars Summer Term 2004 PDF

Author: Yuri Tschinkel

Publisher: Universitätsverlag Göttingen

Published: 2004

Total Pages: 200

ISBN-13: 3930457709

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This volume contains lecture notes from the seminars [alpha]Number Theory", [alpha]Algebraic Geometry" and [alpha]Geometric methods in representation theory" which took place at the Mathematics Institute of the University of Göttingen during the Summer Term 2004. Most contributions report on recent work by the authors.

Mathematisches Institut Georg-august-universität Göttingen, Seminars Summer 2003/2004

Mathematisches Institut Georg-august-universität Göttingen, Seminars Summer 2003/2004 PDF

Author: Yuri Tschinkel

Publisher: Universitätsverlag Göttingen

Published: 2004

Total Pages: 252

ISBN-13: 3930457512

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This volume contains lecture notes from the seminars [alpha]Number Theory", [alpha]Algebraic Geometry" and [alpha]Geometric methods in representation theory" which took place at the Mathematics Institute of the University of Göttingen during the Winter Term 2003-2004. Most contributions report on recent work by the authors.

Québec Studies in the Philosophy of Science

Québec Studies in the Philosophy of Science PDF

Author: Mathieu Marion

Publisher: Springer Science & Business Media

Published: 2012-12-06

Total Pages: 476

ISBN-13: 9400915756

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By North-American standards, philosophy is not new in Quebec: the first men tion of philosophy lectures given by a Jesuit in the College de Quebec (founded 1635) dates from 1665, and the oldest logic manuscript dates from 1679. In English-speaking universities such as McGill (founded 1829), philosophy began to be taught later, during the second half of the 19th century. The major influence on English-speaking philosophers was, at least initially, that of Scottish Empiricism. On the other hand, the strong influence of the Catholic Church on French-Canadian society meant that the staff of the facultes of the French-speaking universities consisted, until recently, almost entirely of Thomist philosophers. There was accordingly little or no work in modem Formal Logic and Philosophy of Science and precious few contacts between the philosophical communities. In the late forties, Hugues Leblanc was a young student wanting to learn Formal Logic. He could not find anyone in Quebec to teach him and he went to study at Harvard University under the supervision of W. V. Quine. His best friend Maurice L' Abbe had left, a year earlier, for Princeton to study with Alonzo Church. After receiving his Ph. D from Harvard in 1948, Leblanc started his profes sional career at Bryn Mawr College, where he stayed until 1967. He then went to Temple University, where he taught until his retirement in 1992, serving as Chair of the Department of Philosophy from 1973 until 1979.

K-theory and Noncommutative Geometry

K-theory and Noncommutative Geometry PDF

Author: Guillermo Cortiñas

Publisher: European Mathematical Society

Published: 2008

Total Pages: 460

ISBN-13: 9783037190609

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Since its inception 50 years ago, K-theory has been a tool for understanding a wide-ranging family of mathematical structures and their invariants: topological spaces, rings, algebraic varieties and operator algebras are the dominant examples. The invariants range from characteristic classes in cohomology, determinants of matrices, Chow groups of varieties, as well as traces and indices of elliptic operators. Thus K-theory is notable for its connections with other branches of mathematics. Noncommutative geometry develops tools which allow one to think of noncommutative algebras in the same footing as commutative ones: as algebras of functions on (noncommutative) spaces. The algebras in question come from problems in various areas of mathematics and mathematical physics; typical examples include algebras of pseudodifferential operators, group algebras, and other algebras arising from quantum field theory. To study noncommutative geometric problems one considers invariants of the relevant noncommutative algebras. These invariants include algebraic and topological K-theory, and also cyclic homology, discovered independently by Alain Connes and Boris Tsygan, which can be regarded both as a noncommutative version of de Rham cohomology and as an additive version of K-theory. There are primary and secondary Chern characters which pass from K-theory to cyclic homology. These characters are relevant both to noncommutative and commutative problems and have applications ranging from index theorems to the detection of singularities of commutative algebraic varieties. The contributions to this volume represent this range of connections between K-theory, noncommmutative geometry, and other branches of mathematics.

Mathematics and Mind

Mathematics and Mind PDF

Author: Alexander George

Publisher: Oxford University Press, USA

Published: 1994

Total Pages: 218

ISBN-13: 0195079299

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The essays in this volume investigate the conceptual foundations of mathematics illuminating the powers of the mind. Contributors include Alexander George, Michael Dummett, George Boolos, W.W. Tait, Wilfried Sieg, Daniel Isaacson, Charles Parsons, and Michael Hallett.

Variational Source Conditions and Conditional Stability Estimates for Inverse Problems in PDEs

Variational Source Conditions and Conditional Stability Estimates for Inverse Problems in PDEs PDF

Author: Frederic Weidling

Publisher: Göttingen University Press

Published: 2019

Total Pages: 225

ISBN-13: 3863954114

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In inverse problems one wants to find some parameter of interest which is not directly observable by indirect measurement. These measurements are usually noisy while the mapping of measurement to parameter is typically illposed (that is unstable). Therefore one applies regularization techniques that balance these two factors to find a stable approximation of the sought for parameter. However, in order to bound the reconstruction error, one needs additional information on the true parameter, which is nowadays typically formulated in terms of variational source conditions. In this thesis, we develop a general strategy to verify these conditions based on smoothness of the true parameter and the illposedness of the problem; the latter will be characterized by exploiting structural similarities to stability estimates. Following this, we apply our strategy to verify variational source conditions for parameter identification problems, inverse scattering and electrical impedance tomography.

Symmetries in Algebra and Number Theory (SANT)

Symmetries in Algebra and Number Theory (SANT) PDF

Author: Ina Kersten

Publisher: Universitätsverlag Göttingen

Published: 2009

Total Pages: 213

ISBN-13: 3940344966

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4e de couverture : "These proceedings contain most of the contributions to the Göttingen-Jerusalem Conference 2008 on "Symmetries in Algebra and Number Theory" including three addresses given at the conference opening, and two contributions to the Satellite Conference "On the Legacy of Hermann Weyl". The contributions are survey articles or report on recent work by the authors, for exemple new results on the famous Leopoldt conjecture."