Die Lösung der Verzweigungsgleichungen für nichtlineare Eigenwertprobleme

Ohne Zusammenfassung     

Characterization of carotenoids and carotenoid esters in red pepper pods (Capsicum annuum L.) by high-performance liquid chromatography/atmospheric pressure chemical ionization mass spectrometry

Carotenoids and carotenoid esters were extracted from red pepper pods (Capsicum annuum L.) without saponification. Among the 42 compounds detected, 4 non-esterified, 11 mono- and 17 diesters were characterized based on their retention times, UV/Vis spectra and their fragmentation patterns in collision-induced dissociation experiments in atmospheric pressure chemical ionization mass spectrometry (APCI-MS). Positive and negative ion mode measurements were used for the characterization of major and minor carotenoids and their esters. Capsanthin esterified with lauric, palmitic and myristic acids represented the predominant compounds in the red pepper extracts. Additionally, three beta-cryptoxanthin and one zeaxanthin monoester were tentatively identified in red pepper pods for the first time. Furthermore, the specific fragmentation patterns of capsanthin-laurate-myristate and capsanthin-myristate-palmitate were used for the distinction of both regioisomers. The results obtained from LC-DAD-APCI-MSn experiments demonstrated that the carotenoid profile of red pepper pods is considerably more complex than considered hitherto.     

Die Torsionsuntergruppe einer Abelschen Gruppe

Ohne Zusammenfassung Friedrich Levi, dem alten Freunde, dem Berg- und Forschungskameraden, zum 70. Geburtstag am 6. Februar 1958     

Nichtlineare Störung der isolierten Eigenwerte selbstadjungierter Operatoren

Ohne ZusammenfassungIch erlaube mir, an dieser Stelle Herrn Prof. Dr. E. Heinz für sein Interesse und viele wertvolle Hinweise zu danken.     

Die Automorphismengruppe des Körpers aller algebraischen Funktionen in einer Veränderlichen über einem algebraisch abgeschlossenen Körper

Ohne ZusammenfassungRuth Moufang zum 10. Januar 1970 in dankbarer Erinnerung an viele Jahre freundschaftlicher Zusammenarbeit gewidmetWährend der Niederschrift dieser Arbeit genoß der Verfasser die Gastfreundschaft des Forschungsinstituts für Mathematik an der ETH Zürich, des Mathematischen Forschungsinstituts Oberwolfach und des Department of Mathematics, Pennsylvania State University. Er ist diesen Instituten für die freundschaftlich gewährte Hilfe dankbarst verpflichtet.     

Die Zusammenhangskomponenten der Lösungen analytischer Plateauprobleme

Ohne Zusammenfassung     

On a thermodynamic limitation of the water-gas potentiometry using solid electrolyte cells

Possibilities of the water-gas potentiometry using oxide ion-conducting solid electrolytes may be restricted by side reactions in the gas being analyzed. Changes in electrode potentials caused by simultaneous interfering equilibria in the water gas were investigated over a temperature range 1200 to 400°C for different initial gas compositions. Formation reactions of carbon and methane proved to be the side reactions which can be responsible for potential changes. Limits for the use of the analytical method are shown by graphs with deviations from the ideal values.77th report on oxide ion-conducting solid electrolytes and their possibilities of application; 76. see cfi/Ber. DKG (in press)