activity
19962021
most citedTree indiscernibilities, revisited

25 citations · 47 across the 13 of their papers we have counts for

collaborators

16 papers

math.LO2021★ 1 cited

Automorphism groups over a hyperimaginary

Byunghan Kim, Hyoyoon Lee

In this paper we study the Lascar group over a hyperimaginary e. We verify that various results about the group over a real set still hold when the set is replaced by e. First of a…

math.LO2020★ 2 cited

Transitivity, lowness, and ranks in NSOP theories

Artem Chernikov, Byunghan Kim, Nicholas Ramsey

We develop the theory of Kim-independence in the context of NSOP theories satsifying the existence axiom. We show that, in such theories, Kim-independence is transitive and t…

math.LO2020★ 3 cited

The relativized Lascar groups, type-amalgamation, and algebraicity

Jan Dobrowolski, Byunghan Kim, Alexei Kolesnikov +1

We apply compact group theory to obtain some model-theoretic results about the relativized Lascar Galois group of a strong type.

math.LO2019

Independence over arbitrary sets in NSOP theories

Jan Dobrowolski, Byunghan Kim, Nicholas Ramsey

We study Kim-independence over arbitrary sets. Assuming that forking satisfies existence, we establish Kim's lemma for Kim-dividing over arbitrary sets in an NSOP theory. We…

math.LO2019

More on tree properties

Enrique Casanovas, Byunghan Kim

Tree properties are introduced by Shelah, and it is well-known that a theory has TP (the tree property) if and only if it has TP or TP. In any simple theory (i.e., a theory…

math.LO2015★ 5 cited

The Lascar groups and the 1st homology groups in model theory

Jan Dobrowolski, Byunghan Kim, Junguk Lee

Let be a strong type of an algebraically closed tuple over $B=\acl^{\eq}(B)$ in any theory . Depending on a ternary relation $\indo^*$ satisfying some basic axioms (there is…