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Work-in-progress study notes on math and physics, plus a daily-refreshed bulletin board for new arXiv papers relevant to my bachelor thesis (muonic Boltzmann collision term in CCSN).

Sections: Math · Physics · arXiv bulletin · Saved papers · Textbooks

If you have any question, here is my discord.

📰 arXiv bulletin — 2026-05-14

Window: last 2 day(s). Categories: astro-ph.HE, astro-ph.SR, nucl-th, hep-ph. 34 papers, 4 thesis-relevant.

Suggested next learning step

Read the abstract + intro of arXiv:2605.12791 and decide whether to save. (~25 min)

Why: Top-scored paper today by keyword overlap — worth a quick triage even if not a direct hit.

2605.12791

Top picks

1. Jet Momentum Broadening in Viscous QCD Matter: A Moment Expansion Approach We formulate out-of-equilibrium jet momentum broadening in QCD effective kinetic theory through a moment expansion of the medium distribution function, a method traditionally used to derive relativistic viscous hydrodynamics from kinetic t… score 18 · hep-ph · Isabella Danhoni et al. · kinetic theory×3

2. Guitar Nebula: extreme accelerator in extreme environment Guitar nebula is a prime example of a class of bow-shock pulsar wind nebulae (PWNe), powered by a wind of a supersonically moving neutron star. score 13 · astro-ph.HE · Nikonorov, Igor Nikolaevich et al. · neutron star×2, supernova×1

3. Magnetar-powered long gamma-ray bursts and connection to superluminous supernovae and fast radio bursts Based on X-ray afterglow observations from the Swift satellite, we construct a sample of 169 long gamma-ray bursts (LGRBs) exhibiting the canonical magnetar plateau signature, i.e., a plateau followed by a decay. score 10 · astro-ph.HE · Zhou, Yu-Qi et al. · supernova×2

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Math stuff

Starting from basic set theory and working up:

1. Basic Set Theory
2. Linear Algebra
3. Topological Spaces
4. Notes on Calculus
5. Manifolds
6. Measure Theory (TBD)
7. (TBD)

Physics stuff

1. Special Relativity
2. Electromagnetism
3. Analytical Mechanics
4. Fluid Mechanics
5. Thermodynamics
6. Statistical Mechanics
7. General Relativity
8. (TBD)

Remarks

Reference textbooks: Textbooks.

Thanks to Jacky Zhao for the Quartz template.