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20022015
most citedDiscrete Hierarchical Organization of Social Group Sizes

585 citations

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Showing 2012Show all

51 papers · 1 filter

cond-mat.str-el2012

Pairing Correlations in the two-layer attractive Hubbard Model

Aleksander Zujev, Richard T. Scalettar, George G. Batrouni +1

Studies of systems with two fermionic bands with repulsive interaction strength U have a long history, with the Periodic Anderson Model (PAM) being one of the most frequently consi…

math.GN2012

Saturating directed spaces

André Hirschowitz, Michel Hirschowitz, Tom Hirschowitz

Directed topology is a refinement of standard topology, where spaces may have non-reversible paths. It has been put forward as a candidate approach to the analysis of concurrent pr…

cond-mat.str-el2012★ 11 cited

Magnetic transition in a correlated band insulator

Axel Euverte, Simone Chiesa, Richard . T. Scalettar +1

The effect of on-site electron-electron repulsion in a band insulator is explored for a bilayer Hubbard Hamiltonian with opposite sign hopping in the two sheets. The ground sta…

math.AG2012

The space of generalised G2-theta functions of level one

Chloé Grégoire, Christian Pauly

Let C be a smooth projective complex curve of genus at least 2. For a simply-connected complex Lie group G the vector space of global sections H^0(M(G), L^l) of the l-th power of t…

cond-mat.dis-nn2012★ 19 cited

Analytical and numerical study of uncorrelated disorder on a honeycomb lattice

Kean Loon Lee, Benoît Grémaud, Christian Miniatura +1

We consider a tight-binding model on the regular honeycomb lattice with uncorrelated on-site disorder. We use two independent methods (recursive Green's function and self-consisten…

q-fin.PR2012

Optimal hedging in discrete time

Bruno Rémillard, Sylvain Rubenthaler

Building on the work of Schweizer (1995) and Cern and Kallseny (2007), we present discrete time formulas minimizing the mean square hedging error for multidimensional assets. In pa…