collaborators

5 papers

math.PR2026

Exact renewal laws for minimal common-denominator profiles in simultaneous Laurent-series approximation

Sanghoon Kwon

Let be independent Haar-random fractional Laurent series over , and let be the least coefficient length of a polynomial denominator that sim…

math.GR2026

Critical-exponent spectra and rank two inverse realization on biregular trees

Sanghoon Kwon

We study the critical-exponent, or equivalently entropy, spectrum arising from free type-preserving actions on the biregular tree . For an action with a nonem…

math.DS2026

-spherical horospherical averages on the Nagao quotient: tree combinatorics and exact discrepancy

Sanghoon Kwon

Let \[ F=\mathbb{F}_q(\!(t^{-1})\!),\qquad G=\mathrm{SL}_2(F),\qquad Γ=\mathrm{SL}_2(\mathbb{F}_q[t]),\qquad X=Γ\backslash G, \] and let , where $\m…

math.NT2026

Special periods and some non-tempered cases of the Gan-Gross-Prasad conjecture

Jaeho Haan, Sanghoon Kwon

In this paper, we establish a relationship between special periods and special L-values of automorphic representations of classical groups, and prove the non-tempered global Gan--G…

math.NT2025

The local converse theorem for quasi-split and

Jaeho Haan, Yeansu Kim, Sanghoon Kwon

Let be a non-archimedean local field of characteristic not equal to 2. In this paper, we prove the local converse theorem for quasi-split and $\SO_{2n}(F)$, via th…