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cond-mat2003
Modes of speciation in heterogeneous space
Martin Rost, Michael Lässig
Modes of speciation have been the subject of a century's debate. Traditionally, most speciations are believed to be caused by spatial separation of populations (allopatry). Recent…
cond-mat1996
The Upper Critical Dimension of the KPZ Equation
Michael Lassig, Harald Kinzelbach
The strong-coupling regime of Kardar-Parisi-Zhang surface growth driven by short-ranged noise has an upper critical dimension d_> less or equal to four (where the dynamic exponent…
cond-mat1994
Fermions in a random medium
Harald Kinzelbach, Michael Lassig
We study the continuum field theory for an ensemble of directed polymers r_i (t) in 1+d' dimensions that live in a medium with quenched point disorder and interact via short-ranged…