From November 17–21, 2025, at the University of Tokyo’s Hongo Campus, Ikuma (D1) took part in the Second International Conference on the Physics of the Two Infinities and delivered an oral presentation titled “Hybrid Delta-map: Combining Harmonic and Real-space Methods for CMB Foreground Removal.” The talk summarized ongoing results on CMB foreground removal and helped clarify future challenges and research directions—making for a highly productive meeting.
