About me
I am a postdoc at the Institute for Discrete Mathematics and Geometry at TU Wien.
I belong to the Set Theory Group, Forschungsbereich 8 (FB8).
My research area is set theory. In particular, I'm interested in inner model theory and determinacy.
I completed my PhD at Rutgers University in October 2022 under the supervision of Grigor Sargsyan.
Upcoming Schedule
May 31-June 2: Giving an invited talk at the 2nd Wrocław Logic Conference at the University of Wrocław.
June 24-28: Giving an invited talk at the conference "Determinacy, Inner Models, and Forcing Axioms" at Erwin Schrödinger Institute, Vienna.
July 1-5: Attending the Inner Model Theory Conference at TU Wien.
Recent updates
(Nov. 3) The slides of my talk has been uploaded on the webpage of RIMS Set Theory Workshop 2023. I included (very) recent progress on this subject in the slides!
(July 26) My paper "On ω-strongly measurable cardinals in Pmax extensions" (with N. Aksornthong, J. Holland, and G. Sargsyan) has been posted on the arXiv.
(July 18) My paper "Chang models over derived models with supercompact measures" (with S. Müller and G. Sargsyan) has been posted on the arXiv.
(June 12) I uploaded the slides of the talks at TU Wien Mini Workshop in Set Theory.
(June 12) I uploaded my slides used at Logic Colloquium 2023 on June 9.
(May 22) I uploaded my slides used at Kobe Set Theory Seminar on May 15 and 22.
(May 13) Sandra and I are organizing TU Wien Mini Workshop in Set Theory on June 12. Please contact me if you are interested in it.
(May 8) I've been invited to give a talk on June 9 at Special Session of Logic Colloquium 2023 in Milan. One can find all the titles and the abstracts of the talks on their website. I'm going to talk about Chang-type models of determinacy.
(May 7) I am going to give online talks at Kobe Set Theory Seminar on May 15 and 22. One can find details here.
(Feb. 16) I uploaded revised versions of my slides used at Core Model Seminar on January 24 and 31.
(Feb. 13) My paper "Determinacy in the Chang model" (with G. Sargsyan) has been posted on the arXiv.
(Jan. 20) I uploaded my handwritten note of my talks at Inner Model Theory Seminar at TU Wien.
(Jan. 19) I uploaded my handwritten note of the lectures in Week 2 of Pmax Tutorial by Paul Larson at TU Wien.
(Jan. 15) I uploaded my handwritten note of the lectures in Week 1 of Pmax Tutorial by Paul Larson at TU Wien.
(Jan. 7, 2023) I am going to give online talks at Core Model Seminar on January 24 and January 30. One can find details here.
Contact Information
Email: takehiko.gappo [at] tuwien [dot] ac [dot] at
Address:
Institut für Diskrete Mathematik und Geometrie, TU Wien
Wiedner Hauptstraße 8-10/104, 1040 Wien, Austria.
Nov. 27, 2022 in Vienna.