133 citations
- Centrum Wiskunde & InformaticaNL1 paper
- Helsinki Institute of PhysicsFI1 paper
- Humboldt-Universität zu BerlinDE1 paper
- Institut d'électronique de microélectronique et de nanotechnologieFR1 paper
- Institute for Solid State Physics and OpticsHU1 paper
- Johannes Gutenberg University MainzDE1 paper
- Kuwait UniversityKW1 paper
- Max Planck Institute for InformaticsDE1 paper
- University of BayreuthDE1 paper
- University of BonnDE1 paper
- University of BrightonGB1 paper
- University of California, BerkeleyUS1 paper
15 papers
Disorder-induced phases in the S=1 antiferromagnetic Heisenberg chain
Péter Lajkó, Enrico Carlon, Heiko Rieger +1
We use extensive density matrix renormalization group (DMRG) calculations to explore the phase diagram of the random S=1 antiferromagnetic Heisenberg chain with a power-law distrib…
Elastic lines on splayed columnar defects studied numerically
Viljo Petaja, Matti Sarjala, Mikko Alava +1
We investigate by exact optimization method properties of two- and three-dimensional systems of elastic lines in presence of splayed columnar disorder. The ground state of many lin…
Upper Bound on the Number of Vertices of Polyhedra with -Constraint Matrices
Khaled Elbassioni, Zvi Lotker, Raimund Seidel
In this note we show that the maximum number of vertices in any polyhedron with -constraint matrix and a real vector is at most $d…
Real Line Arrangements and Surfaces with Many Real Nodes
Sonja Breske, Oliver Labs, Duco van Straten
A long standing question is if maximum number of nodes on a surface of degree in $\dP^3(\dC)$ can be achieved by a surface defined over the reals which has only real sin…
Electron spectra close to a metal-to-insulator transition
Michal Karski, Carsten Raas, Götz S. Uhrig
A high-resolution investigation of the electron spectra close to the metal-to-insulator transition in dynamic mean-field theory is presented. An all-numerical, consistent confirmat…
Relative Beilinson Monad and Direct Image for Families of Coherent Sheaves
David Eisenbud, Frank-Olaf Schreyer
The higher direct image complex of a coherent sheaf (or finite complex of coherent sheaves) under a projective morphism is a fundamental construction that can be defined via a Cech…