Leor Neuhauser

Rigid algebras are right adjoint to cospans - YTM, Münster 2024 (slides)
A talk about an upcoming paper on rigid algebras and cospans. I define the notion of a rigid algebras and indicate some proofs, including the adjunction with cospans.

Hirzebuch's signature theorem - Jerusalem 2024
This talk was part of a seminar on orientations. In this talk we define the signature of a manifold, prove that it is a genus, and prove that it equal to the L-polynomial in Pontrjagin classes.
Cyclotomic redshift - Oberwolfach 2024
This talk was prepared for the Oberwolfach Arbeitsgemeinschaft about the disproof of the telescope conjecture. In this talk we proved cyclotomic redshift, namely that T(n+1)-localized K-theory sends height n cyclotomic extensions to height n+1 cyclotomic extension.
Proving the chromatic nullstelenzats - Jerusalem 2024
This talk was prepared for the Kazhdan seminar on the chromatic nullstelenzats. In this talk we gathered all the results proven throughout the semester to finalize the proof of the chromatic nullstelenzats.
Cyclotomic and polygonic spectra - Jerusalem 2024
This talk was prepared for a seminar on the disproof of the telescope conjectrure. In this talk we define cyclotomic and polygonic spectra, and using them we define THH, TC and TR. We also prove some adjunctions.

Homotopy Theory: Revisiting Localizations and Beyond - Mainz 2024
Yonatan Harpaz, Shai Keidar, Tomer Schlank, Lior Yanovski and myself organized this conference in June 2024.

I did my Master's thesis in model theory, under the supervision of Itay Kaplan and Christian d’Elbée.

The two chapters of the thesis were published independently:

d'Elbée C, Kaplan I, Neuhauser L. On algebraically closed fields with a distinguished subfield. Israel J. Math. 2024. Available at: Publisher's version
d'Elbée C, Kaplan I, Neuhauser L. Existentially closed models of fields with a distinguished submodule. J. Symbolic Logic (accepted). 2021.