Gerhard Aumüller / Andreas Hedwig (Hg.), Regionale Medizingeschichte. Konzepte – Ergebnisse Perspektiven (Veröffentlichungen der Historischen Kommission für Hessen 92). Marburg 2022. 436 S. ISBN 978-3-942225-53-3. € 34,–

We show that the category of orbits of the bounded derived category of a hereditary category under a well-behaved autoequivalence is canonically triangulated. This answers a question by Aslak Buan, Robert Marsh and Idun Reiten which appeared in their study [8] with M. Reineke and G. Todorov of the link between tilting theory and cluster algebras (cf. also [16]) and a question by Hideto Asashiba...

Acknowledgements I would like to express my gratitude to my supervisors João Barros and Michael Tüchler for the time and effort they invested during the course of this work. They were a constant source of motivation and guidance. Many thanks also go out to Seong Per Lee and Gerhard Maierbacher for their support.

In the first part of the paper we give a characterization for an associative algebra to be standardly stratified in the sense of Cline, Parshall and Scott, generalizing a theorem of V. Dlab. In the second part of the paper we construct characteristic tilting modules for standardly stratified algebras and use them to estimate the finitistic dimension of such algebras. These tilting modules give ...

It was shown by Gerhard Ringel that one of the three non-isomorphic Steiner triple systems of order 15 having an automorphism of order 5 may be biembedded as the faces of a face 2-colourable triangular embedding of K15 in a suitable orientable surface. Ringel’s bi-embedding was obtained from an appropriate current graph. In a recent paper, the present authors showed that a second STS(15) of thi...

Gerhard Rechter, Die Archive der Grafen und Freiherren von Seckendorff; Urkundenbestände Schloßarchive Obernzenn, Sugenheim, Trautskirchen Unternzenn, Bd. 1-3 (Bayerische Archivinventare, 45-46), München (Selbstverlag Generaldirektion Staatlichen Bayerns) 1993.

Gerhard Fritz und Eva Luise Wittneben (Hg.): Landesgeschichte in Forschung Unterricht, 5. Jahrgang. Beiträge des Tages der Schule vom 22. Oktober 2008 Ulm. Stuttgart (Kohlhammer) 2009. 191 S., Abb.