Obstruction theory

Results: 29



#Item
11Descent obstructions and Brauer-Manin obstruction in positive characteristic David Harari and Jos´e Felipe Voloch September 21, 2011 Abstract. We prove that the Brauer-Manin obstruction is the only obstruction to the ex

Descent obstructions and Brauer-Manin obstruction in positive characteristic David Harari and Jos´e Felipe Voloch September 21, 2011 Abstract. We prove that the Brauer-Manin obstruction is the only obstruction to the ex

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Source URL: www.ma.utexas.edu

Language: English - Date: 2011-09-21 09:52:45
12About the problem Obstruction from ergodic theory Complexity of nilsystems Complexity of nilsystems and systems lacking nilfactors Alejandro Maass

About the problem Obstruction from ergodic theory Complexity of nilsystems Complexity of nilsystems and systems lacking nilfactors Alejandro Maass

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Source URL: fourier.math.uoc.gr

Language: English - Date: 2013-06-04 11:31:14
    13On Computing Graph Minor Obstruction Sets ∗ Kevin Cattell Department of Computer Science University of Victoria Victoria, B.C. V8W 3P6, Canada

    On Computing Graph Minor Obstruction Sets ∗ Kevin Cattell Department of Computer Science University of Victoria Victoria, B.C. V8W 3P6, Canada

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    Source URL: www.mrfellows.net

    Language: English - Date: 2009-10-06 02:54:05
    14Lubin Tate Cohomology and Deformations of n-buds Jonathan Beardsley Abstract We reprove Lazard’s result that every commutative n-bud is extendible to an n + 1 bud, from an obstruction theoretic point of view. We locate

    Lubin Tate Cohomology and Deformations of n-buds Jonathan Beardsley Abstract We reprove Lazard’s result that every commutative n-bud is extendible to an n + 1 bud, from an obstruction theoretic point of view. We locate

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    Source URL: math.jhu.edu

    Language: English - Date: 2014-09-19 15:09:22
    15Journal of Universal Computer Science, vol. 3, no), submitted: 8/8/97, accepted: , appeared:  Springer Pub. Co. A Note on the Computability of Graph Minor Obstruction Sets for Mona

    Journal of Universal Computer Science, vol. 3, no), submitted: 8/8/97, accepted: , appeared:  Springer Pub. Co. A Note on the Computability of Graph Minor Obstruction Sets for Mona

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    Source URL: www.mrfellows.net

    Language: English - Date: 2009-10-14 09:38:23
    16ENLARGEABILITY AND INDEX THEORY B. Hanke and T. Schick Abstract Let M be a closed enlargeable spin manifold. We show nontriviality of the universal index obstruction in the K-theory of the maximal C ∗ -algebra of the f

    ENLARGEABILITY AND INDEX THEORY B. Hanke and T. Schick Abstract Let M be a closed enlargeable spin manifold. We show nontriviality of the universal index obstruction in the K-theory of the maximal C ∗ -algebra of the f

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    Source URL: www.math.uni-augsburg.de

    Language: English - Date: 2013-12-05 22:03:01
    17POSITIVE SCALAR CURVATURE, K-AREA AND ESSENTIALNESS BERNHARD HANKE A BSTRACT. The Lichnerowicz formula yields an index theoretic obstruction to positive scalar curvature metrics on closed spin manifolds. The most general

    POSITIVE SCALAR CURVATURE, K-AREA AND ESSENTIALNESS BERNHARD HANKE A BSTRACT. The Lichnerowicz formula yields an index theoretic obstruction to positive scalar curvature metrics on closed spin manifolds. The most general

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    Source URL: www.math.uni-augsburg.de

    Language: English - Date: 2013-12-05 22:36:21
    18ENLARGEABILITY AND INDEX THEORY B. Hanke and T. Schick Abstract Let M be a closed enlargeable spin manifold. We show nontriviality of the universal index obstruction in the K-theory of the maximal C ∗ -algebra of the f

    ENLARGEABILITY AND INDEX THEORY B. Hanke and T. Schick Abstract Let M be a closed enlargeable spin manifold. We show nontriviality of the universal index obstruction in the K-theory of the maximal C ∗ -algebra of the f

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    Source URL: www.math.uni-augsburg.de

    Language: English - Date: 2013-12-05 22:03:01
    19POSITIVE SCALAR CURVATURE, K-AREA AND ESSENTIALNESS BERNHARD HANKE A BSTRACT. The Lichnerowicz formula yields an index theoretic obstruction to positive scalar curvature metrics on closed spin manifolds. The most general

    POSITIVE SCALAR CURVATURE, K-AREA AND ESSENTIALNESS BERNHARD HANKE A BSTRACT. The Lichnerowicz formula yields an index theoretic obstruction to positive scalar curvature metrics on closed spin manifolds. The most general

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    Source URL: www.math.uni-augsburg.de

    Language: English - Date: 2013-12-05 22:36:21
    20THE HASSE PRINCIPLE AND THE BRAUER-MANIN OBSTRUCTION FOR CURVES E.V. FLYNN Abstract. We discuss a range of ways, extending existing methods, to demonstrate violations of the Hasse principle on curves. Of particular inter

    THE HASSE PRINCIPLE AND THE BRAUER-MANIN OBSTRUCTION FOR CURVES E.V. FLYNN Abstract. We discuss a range of ways, extending existing methods, to demonstrate violations of the Hasse principle on curves. Of particular inter

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    Source URL: people.maths.ox.ac.uk

    Language: English - Date: 2006-07-08 18:57:36