Concept

Space (mathematics)

Publications associées (89)

Constructing reparameterization invariant metrics on spaces of plane curves

Metrics on shape spaces are used to describe deformations that take one shape to another, and to define a distance between shapes. We study a family of metrics on the space of curves, which includes several recently proposed metrics, for which the metrics ...

Elsevier2014

Exact Diagonalization of Heisenberg SU(N) Models

Frédéric Mila, Pierre Marcel Nataf

Building on advanced results on permutations, we show that it is possible to construct, for each irreducible representation of SU(N), an orthonormal basis labeled by the set of standard Young tableaux in which the matrix of the Heisenberg SU(N) model (the ...

2014

Cloud-Savvy Contextual Spaces as Agile Personal Learning Environments or Informal Knowledge Management Solutions

Denis Gillet, Evgeny Bogdanov

This paper presents how advanced social media platforms can be exploited to construct and share contextual spaces enabling the instantiation of agile personal learning environments or informal knowledge management solutions. The usefulness of open plugins ...

2013

Global Regularity for the Yang-Mills Equations on High Dimensional Minkowski Space

Joachim Krieger

This monograph contains a study of the global Cauchy problem for the Yang-Mills equations on (6+1) and higher dimensional Minkowski space, when the initial data sets are small in the critical gauge covariant Sobolev space. (H) over dot(A)((n-4)/2). Regular ...

Amer Mathematical Soc2013

Urban Movements in Lisbon’s Crisis Environment

Letícia Cabeçadas Do Carmo

Within a context of a social and economic crisis, the city of Lisbon is shyly starting to thrill with desire for change. Several socio-cultural spaces, with different degrees of autonomy from the state and the market forces, are having in fact an important ...

2013

A comment on the construction of the maximal globally hyperbolic Cauchy development

Willie Wai Yeung Wong

Under mild assumptions, we remove all traces of the axiom of choice from the construction of the maximal globally hyperbolic Cauchy development in general relativity. The construction relies on the notion of direct union manifolds, which we review. The con ...

American Institute of Physics2013

The Alternative Cultural Life of Lisbon: two case-studies

Letícia Cabeçadas Do Carmo

In a dramatic crisis context, Lisbon reveals itself as an attractive and dynamic city of alternative bustling creativity. Trying to understand this paradox, I analyse two successful “alternative cultural spaces”: Lx Factory and Pensão Amor. Urban strategie ...

2012

Subspace properties of network coding and their applications

Christina Fragouli, Suhas Diggavi, Mahdi Jafari Siavoshani

Systems that employ network coding for content distribution convey to the receivers linear combinations of the source packets. If we assume randomized network coding, during this process the network nodes collect random subspaces of the space spanned by th ...

2012

THE CORONA THEOREM FOR THE DRURY-ARVESON HARDY SPACE AND OTHER HOLOMORPHIC BESOV-SOBOLEV SPACES ON THE UNIT BALL IN C-n

We prove that the multiplier algebra of the Drury-Arveson Hardy space H-n(2) on the unit ball in C-n has no corona in its maximal ideal space, thus generalizing the corona theorem of L. Carleson to higher dimensions. This result is obtained as a corollary ...

2011

Nonlinear Optical Response in Single Alkaline Niobate Nanowires

Aleksandra Radenovic, Kurt Schenk, Fabrizia Dutto, Camille Alice Raillon

We have synthesized and characterized three types of perovskite alkaline niobate nanowires: NaNbO3, KNbO3, and LiNbO3 (XNbO3). All three types of nanowires exhibit strong nonlinear response. Confocal imaging has been employed to quantitatively compare the ...

2011

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