6 papers
Images of isogeny classes on modular elliptic curves
Florian Breuer
Let K be a number field and E/K a modular elliptic curve, with modular parametrization defined over K. The purpose of this note is to study the images in E of classe…
Monodromy Groups associated to Non-Isotrivial Drinfeld Modules in Generic Characteristic
Florian Breuer, Richard Pink
Let be a non-isotrivial family of Drinfeld A-modules of rank r in generic characteristic with a suitable level structure over a connected smooth algebraic variety X. Suppose th…
CM points on products of Drinfeld modular curves
Florian Breuer
Let X be a product of Drinfeld modular curves over a general base ring A of odd characteristic. We classify those subvarieties of X which contain a Zariski-dense set of CM points.…
Higher Heegner points on elliptic curves over function fields
Florian Breuer
Let E be a modular elliptic curve defined over a rational function field k of odd characteristic. We construct a sequence of Heegner points on E, defined over a -towe…
The Andre-Oort conjecture for products of Drinfeld modular curves
Florian Breuer
Let be a product of Drinfeld modular curves. We characterize those algebraic subvarieties containing a Zariski-dense set of CM points, i.e.…
Discovery and analysis of Gamma Doradus type pulsations in the Cloud and the effect of metallicity on pulsation
E. Poretti, C. Koen, P. Martinez +3
We present multi-site photometric observations of the F0 IV star HR 2740=QW Pup which reveal it to be a Gamma Dor type variable pulsating with four frequencies: 1.0434, 0.9951, 1.1…