3 papers
math.LO2024
Nowhere trivial automorphisms of , for inaccessible
Jakob Kellner, Saharon Shelah
If is (strongly) inaccessible and , then there is a nowhere trivial automorphism of the Boolean algebra .
math.LO2024
On automorphisms of
Jakob Kellner, Anda Latif, Saharon Shelah
We investigate the statement ``all automorphisms of are trivial''. We show that MA implies the statement for regular uncountable ; that…
math.LO2024
Preservation of splitting families and cardinal characteristics of the continuum
Martin Goldstern, Jakob Kellner, Diego A. MejÃa +1
We show how to construct, via forcing, splitting families than are preserved by a certain type of finite support iterations. As an application, we construct a model where 15 classi…