@article{Schmidt2005,
  author    = {Schmidt, Hans-J{\"u}rgen},
  title     = {Schwarzschild and Synge once again},
  issn      = {0001-7701},
  year      = {2005},
  abstract  = {We complete the historical overview about the geometry of a Schwarzschild black hole at its horizon by emphasizing the contribution made by Synge in [6] to its clarification},
  language  = {en}
}
@article{Schmidt2005,
  author    = {Schmidt, Hans-J{\"u}rgen},
  title     = {Untitled},
  year      = {2005},
  language  = {de}
}
@article{Schmidt2003,
  author    = {Schmidt, Hans-J{\"u}rgen},
  title     = {The square of the Weyl tensor can be negative},
  year      = {2003},
  abstract  = {We show that the square of the Weyl tensor can be negative by giving an example},
  language  = {en}
}
@article{CanforaSchmidt2003,
  author    = {Canfora, Fabrizio and Schmidt, Hans-J{\"u}rgen},
  title     = {Vacuum solutions which cannot be written in diagonal form},
  year      = {2003},
  abstract  = {A vacuum solution of the Einstein gravitational field equation is shown to follow from a general ansatz but fails to follow from it if the symmetric matrix in it is assumed to be in diagonal form.},
  language  = {en}
}
@article{KleinertSchmidt2002,
  author    = {Kleinert, Hagen and Schmidt, Hans-J{\"u}rgen},
  title     = {Cosmology with curvature-saturated gravitational lagrangian},
  year      = {2002},
  abstract  = {We argue that the Lagrangian L(R) for gravity should remain bounded at large curvature, and interpolate between the weak-field tested Einstein-Hilbert Lagrangian and a pure cosmological constant for large R with the curvature- saturated ansatz. The curvature-dependent effective gravitational constant tends to infinity for large R, in contrast to most other approaches where it tends to 0. The theory possesses neither ghosts nor tachyons, but it fails to be linearization stable. On the technical side we show that two different conformal transformations make L asymptotically equivalent to the Gurovich-ansatz on the one hand, and to Einstein's theory with a minimally coupled scalar field with self-interaction on the other.},
  language  = {en}
}
@article{DzhunushalievRurenkoSchmidt2002,
  author    = {Dzhunushaliev, Vladimir and Rurenko, O. and Schmidt, Hans-J{\"u}rgen},
  title     = {Spherically symmetric solutions in multidimensional gravity with the SU(2) gauge group as the extra dimensions},
  year      = {2002},
  language  = {en}
}
@article{GorbatenkoPushkinSchmidt2002,
  author    = {Gorbatenko, M. V. and Pushkin, A. V. and Schmidt, Hans-J{\"u}rgen},
  title     = {On a relation between the Bach equation and the equation of geometrodynamics},
  year      = {2002},
  abstract  = {The Bach equation and the equation of geometrodynamics are based on two quite different physical motivations, but in both approaches, the conformal properties of gravitation plays the key role. In this paper we present an analysis of the relation between these two equations and show that the solutions of the equation of geometrodynamics are of a more general nature. We show the following non-trivial result: there exists a conformally invariant Lagrangian, whose field equation generalizes the Bach equation and has as solutions those Ricci tensors which are solutions to the equation of geometrodynamics.},
  language  = {en}
}
@article{GurovichSchmidtTokareva2001,
  author    = {Gurovich, Viktor and Schmidt, Hans-J{\"u}rgen and Tokareva, Ira},
  title     = {Tunneling of the closed Friedmann Universe with generation of scalar waves},
  year      = {2001},
  abstract  = {The evolution of the closed Friedmann Universe with a packet of short scalar waves is considered with the help of the Wheeler-DeWitt equation. The packet ensures conservation of homogeneity and isotropy of the metric on average. It is shown that during tunneling the amplitudes of short waves of a scalar field can increase catastrophically promptly if their influence to the metric is not taken into account. This effect is similar to the Rubakov-effect of catastrophic particle creation calculated already in 1984. In our approach to the problem it is possible to consider a self- consistent dynamics of the expansion of the Universe and amplification of short waves. It results in a decrease of the barrier and interruption of amplification of waves, and we get an exit of the wave function from the quantum to the classically available region.},
  language  = {en}
}
@book{HooftHolsteinMakrietal.2001,
  author    = {Hooft, Gerard and Holstein, Barry and Makri, Nancy and Duru, Ismail and Ruffini, Remo and Janke, Wolfhard and Pelster, Axel and Schmidt, Hans-J{\"u}rgen and Bachmann, Michael},
  title     = {Fluctuating paths and fields : festschrift dedicated to Hagen Kleinert on the occasion of his 60the birthday},
  publisher = {World Scientific},
  address   = {River Edge, NJ},
  isbn      = {981-02-4648-X},
  pages     = {871 S.},
  year      = {2001},
  language  = {en}
}
@article{Schmidt2000,
  author    = {Schmidt, Hans-J{\"u}rgen},
  title     = {Eichfeldtheorie},
  year      = {2000},
  language  = {de}
}
@article{BachmannSchmidt2000,
  author    = {Bachmann, Michael and Schmidt, Hans-J{\"u}rgen},
  title     = {Period-doubling bifurcation in strongly anisotropic Bianchi I quantum cosmology},
  year      = {2000},
  language  = {en}
}
@article{CapozzielloLambiaseSchmidt2000,
  author    = {Capozziello, Salvatore and Lambiase, G. and Schmidt, Hans-J{\"u}rgen},
  title     = {Nonminimal derivative couplings and inflation in generalized theories of gravity},
  year      = {2000},
  language  = {en}
}
@article{DzhunushalievSchmidt2000,
  author    = {Dzhunushaliev, Vladimir and Schmidt, Hans-J{\"u}rgen},
  title     = {New vacuum solutions of conformal Weyl gravity},
  year      = {2000},
  language  = {en}
}
@article{DzhunushalievSchmidt2000,
  author    = {Dzhunushaliev, Vladimir and Schmidt, Hans-J{\"u}rgen},
  title     = {Wormholes and Flux Tubes in the 7D Gravity on the Principal Bundle with SU(2) Gauge Group as the Extra Dimensions},
  year      = {2000},
  language  = {en}
}
@article{DzhunushalievSchmidt2000,
  author    = {Dzhunushaliev, Vladimir and Schmidt, Hans-J{\"u}rgen},
  title     = {Flux Tubes in Weyl Gravity},
  year      = {2000},
  language  = {en}
}
@article{Schmidt2000,
  author    = {Schmidt, Hans-J{\"u}rgen},
  title     = {Editor's note to A. Sakharov},
  year      = {2000},
  language  = {en}
}
@article{Schmidt2000,
  author    = {Schmidt, Hans-J{\"u}rgen},
  title     = {On a new conformal duality of spherically symmetric space-times},
  year      = {2000},
  language  = {en}
}
@article{Schmidt2000,
  author    = {Schmidt, Hans-J{\"u}rgen},
  title     = {Topologische Aspekte in der Kosmologie},
  year      = {2000},
  language  = {de}
}
@article{Schmidt2000,
  author    = {Schmidt, Hans-J{\"u}rgen},
  title     = {Allgemeine Relativit{\"a}tstheorie},
  year      = {2000},
  language  = {de}
}
@article{Schmidt2000,
  author    = {Schmidt, Hans-J{\"u}rgen},
  title     = {On a new conformal duality of spherically symmetric space-times},
  year      = {2000},
  language  = {en}
}