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To any closed subvariety Y of a complex abelian variety one can attach a reductive algebraic group G which is determined by the decomposition of the convolution powers of Y via a certain Tannakian formalism. For a theta divisor Y on a principally polarized abelian variety, this group G provides a new invariant that naturally endows the moduli space $${{\mathcal {A}}}_g$$ of principally polarized abelian varieties of dimension g with a finite constructible stratification. We determine G for a generic principally polarized abelian variety, and for $$g=4$$ we show that the stratification detects the locus of Jacobian varieties inside the moduli space of abelian varieties. [ABSTRACT FROM AUTHOR]

Copyright of Rechtsmedizin is the property of Springer Nature and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

After an overview of the modular analysis and reconstruction framework Marlin an introduction on the functionality of the Marlin-based reconstruction package MarlinReco is given. This package includes a full set of modules for event reconstruction based on the particle flow approach. The status of the software is reviewed and recent results using this software package for event reconstruction are presented. [ABSTRACT FROM AUTHOR]

Copyright of Der Orthopäde is the property of Springer Nature and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Rechtsmedizin is the property of Springer Nature and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Measurements of the b and c quark forward-backward asymmetries performed at LEP are presented, focusing on the latest results from OPAL and DELPHI. PACS: 12.15.Mm Neutral currents – 13.38.Dg Decays of Z bosons – 13.66.Jn Precision measurements in e-e+ interactions – 14.70.Hp Z bosons [ABSTRACT FROM AUTHOR]