2 papers
astro-ph.GA2026
Magnetic fields in extreme primordial halos: turbulent collapse and implications for early quasar formation
V. B. Díaz, D. R. G. Schleicher, M. A. Latif +1
It is sometimes suggested that the most massive quasars at high redshift may have formed from rare high-sigma peaks in the cosmic density field. We explore here the evolution in a…
cs.CV2025
Multi-Representation Geometric Hierarchy Fusion: An Implicit-Submap Driven Framework for Resilient 3D Place Recognition
Xiaohui Jiang, Haijiang Zhu, Chade Li +2
LiDAR-based place recognition is critical for long-term autonomous driving without GPS. Existing handcrafted feature methods face dual limitations. First, descriptor instability oc…