3 papers
astro-ph.HE2026
Probing Variations in Earth's Ionosphere Using Pulsars
Yanqing Cai, Ziwei Wu, Weiwei Zhu +24
We present high cadence 10-minute rotation measure (RM) monitoring of PSR~J0814+7429 using the LOw-Frequency ARray, aiming to probe ionospheric variability along the pulsar line of…
astro-ph.HE2026
Pulsar scintillation studies with LOFAR III. Annual variations in PSR~J08147429
Yanqing Cai, Ziwei Wu, Weiwei Zhu +27
The interstellar scintillation observed in radio pulsars arises from interference between electromagnetic waves scattered by electron density fluctuations in the turbulent interste…
math.NA2025
Computing the Proximal Operator of the -th Power of the -norm for Group Sparsity
Rongrong Lin, Shihai Chen, Han Feng +1
In this note, we comprehensively characterize the proximal operator of the -th power of the -norm (denoted by ) with by exploiting th…