2k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Centre National de la Recherche ScientifiqueFR75 papers
- University of MünsterDE37 papers
- Los Alamos National LaboratoryUS33 papers
- Max Planck Institute for Dynamics and Self-OrganizationDE26 papers
- Observatoire de la Côte d’AzurFR26 papers
- University of StuttgartDE25 papers
- Friedrich-Alexander-Universität Erlangen-NürnbergDE23 papers
- Heinrich Heine University DüsseldorfDE23 papers
- Northwestern UniversityUS23 papers
- Deutsches Elektronen-Synchrotron DESYDE22 papers
- Bogolyubov Institute for Theoretical PhysicsUA21 papers
- ETH ZurichCH21 papers
49 papers · 1 filter
Fracture as a pattern formation process
M. Fleck, D. Pilipenko, R. Spatschek +1
A continuum model of crack propagation is presented and discussed. We obtain steady state solutions with a self-consistently selected propagation velocity and shape of the crack, p…
Burniat surfaces III: deformations of automorphisms and extended Burniat surfaces
Ingrid Bauer, Fabrizio Catanese
We continue our investigation of the connected components of the moduli space of surfaces of general type containing the Burniat surfaces, correcting a mistake in part II. We defin…
Remarks on some typical assumptions in dynamo theory
R. D. Simitev, F. H. Busse
Some concepts used in the theory of convection-driven dynamos in rotating spherical fluid shells are discussed. The analogy between imposed magnetic fields and those generated by d…
A Characterization of Varieties whose Universal Cover is the Polydisk or a Tube Domain
Fabrizio M. E. Catanese, Antonio Jos'e Di Scala
Catanese and Franciosi defined a semispecial tensor as a (non zero) section of the n-th symmetric power of the cotangent bundle twisted by the anticanonical divisor and by a 2-tors…
A fluorescence correlation spectroscopy study of macromolecular tracer diffusion in polymer solutions
Ute Zettl, Matthias Ballauff, Ludger Harnau
We discuss the manner in which the dynamics of tracer polystyrene chains varies with the concentration of matrix polystyrene chains dissolved in toluene. Using fluorescence correla…
Metallic nanograins: spatially nonuniform pairing induced by quantum confinement
M. D. Croitoru, A. A. Shanenko, C. C. Kaun +1
It is well-known that the formation of discrete electron levels strongly influences the pairing in metallic nanograins. Here we focus on another effect of quantum confinement in su…
Kulikov surfaces form a connected component of the moduli space
Tsz On Mario Chan, Stephen Coughlan
We show that the Kulikov surfaces form a connected component of the moduli space of surfaces of general type with p_g=0 and K^2=6. We also give a new description for the surfaces,…
Irreducibility of the space of cyclic covers of algebraic curves of fixed numerical type and the irreducible components of
Fabrizio Catanese
We prove irreducibility for the space of cyclic covers of fixed numerical type between smooth projective curves, and also for the space of cyclic covers of prime order and of fixed…
Off-centered immobile magnetic vortex under influence of spin-transfer torque
Volodymyr P. Kravchuk, Denis D. Sheka, Franz G. Mertens +1
Equilibrium magnetization distribution of the vortex state magnetic nanoparticle is affected by the influence of the spin-transfer torque: an off-center out--of--plane vortex appea…
Anomalous diffusion in viscosity landscapes
Markus Burgis, Volker Schaller, Martin Glässl +4
Anomalous diffusion is predicted for Brownian particles in inhomogeneous viscosity landscapes by means of scaling arguments, which are substantiated through numerical simulations.…
The van Hove distribution function for Brownian hard spheres: dynamical test particle theory and computer simulations for bulk dynamics
Paul Hopkins, Andrea Fortini, Andrew Archer +1
We describe a test particle approach based on dynamical density functional theory (DDFT) for studying the correlated time evolution of the particles that constitute a fluid. Our th…
Determinantal quartics and the computation of the Picard group
Andreas-Stephan Elsenhans, Jörg Jahnel
We test the methods for computing the Picard group of a surface in a situation of high rank. The examples chosen are resolutions of quartics in $\bP^3$ having 14 singularities…
Two pressure-induced structural phase transitions in TiOCl
J. Ebad-Allah, A. Schönleber, S. van Smaalen +7
We studied the crystal structure of TiOCl up to pressures of =25~GPa at room temperature by x-ray powder diffraction measurements. Two pressure-induced structural phase transiti…
Potential Sha for abelian varieties
Brendan Creutz
We show that the p-torsion in the Tate-Shafarevich group of any principally polarized abelian variety over a number field is unbounded as one ranges over extensions of degree O(p),…
Explicit isogeny descent on elliptic curves
R. L. Miller, M. Stoll
In this note, we consider an l-isogeny descent on a pair of elliptic curves over Q. We assume that l > 3 is a prime. The main result expresses the relevant Selmer groups as kernels…
Asymptotic Normality of Support Vector Machine Variants and Other Regularized Kernel Methods
Robert Hable
In nonparametric classification and regression problems, regularized kernel methods, in particular support vector machines, attract much attention in theoretical and in applied sta…
Free energies, vacancy concentrations and density distribution anisotropies in hard--sphere crystals: A combined density functional and simulation study
M. Oettel, S. Goerig, A. Haertel +3
We perform a comparative study of the free energies and the density distributions in hard sphere crystals using Monte Carlo simulations and density functional theory (employing Fun…
Curvature Dependence of Surface Free Energy of Liquid Drops and Bubbles: A Simulation Study
B. J. Block, S. K. Das, M. Oettel +2
We study the excess free energy due to phase coexistence of fluids by Monte Carlo simulations using successive umbrella sampling in finite LxLxL boxes with periodic boundary condit…
Nuclear magnetic resonance measurements reveal the origin of the Debye process in monohydroxy alcohols
C. Gainaru, R. Meier, S. Schildmann +4
Monohydroxy alcohols show a structural relaxation and at longer time scales a Debye-type dielectric peak. From spin-lattice relaxation experiments using different nuclear probes an…
Convection in nanofluids with a particle-concentration-dependent thermal conductivity
Martin Glässl, Markus Hilt, Walter Zimmermann
Thermal convection in nanofluids is investigated by means of a continuum model for binary-fluid mixtures, with a thermal conductivity depending on the local concentration of colloi…
New outlook on the Minimal Model Program, I
Paolo Cascini, Vladimir Lazić
We give a new and self-contained proof of the finite generation of adjoint rings with big boundaries. As a consequence, we show that the canonical ring of a smooth projective varie…
The probability distribution of a trapped Brownian particle in plane shear flows
Jochen Bammert, Walter Zimmermann
We investigate the statistical properties of an over-damped Brownian particle that is trapped by a harmonic potential and simultaneously exposed to a linear shear flow or to a plan…
Binary non-additive hard sphere mixtures: Fluid demixing, asymptotic decay of correlations and free fluid interfaces
Paul Hopkins, Matthias Schmidt
Using a fundamental measure density functional theory we investigate both bulk and inhomogeneous systems of the binary non-additive hard sphere model. For sufficiently large (posit…
Derivation of a three-dimensional phase-field-crystal model for liquid crystals from density functional theory
Raphael Wittkowski, Hartmut Löwen, Helmut R. Brand
Using a generalized order parameter gradient expansion within density functional theory, we derive a phase-field-crystal model for liquid crystals composed by apolar particles in t…