#P1

Turn1Visualsturn1visuals
2025-06-29

Red Bull Racing: "There's no place like home"

🌈 â˜ŻïžTeresita🐧👭linuxgal@techhub.social
2025-06-26
Torger Åge Sinnesdalstroka@snabelen.no
2025-06-21
2025-06-02

The stability of independence polynomials of complete bipartite graphs

Guo Chen, Bo Ning, Jianhua Tu
arxiv.org/abs/2505.24381 arxiv.org/pdf/2505.24381 arxiv.org/html/2505.24381

arXiv:2505.24381v1 Announce Type: new
Abstract: The independence polynomial of a graph is termed {\it stable} if all its roots are located in the left half-plane $\{z \in \mathbb{C} : \mathrm{Re}(z) \leq 0\}$, and the graph itself is also referred to as stable. Brown and Cameron (Electron. J. Combin. 25(1) (2018) \#P1.46) proved that the complete bipartite graph $K_{1,n}$ is stable and posed the question: \textbf{Are all complete bipartite graphs stable?}
We answer this question by establishing the following results:
\begin{itemize}
\item The complete bipartite graphs $K_{2,n}$ and $K_{3,n}$ are stable.
\item For any integer $k\geq0$, there exists an integer $N(k)\in \mathbb{N}$ such that $K_{m,m+k}$ is stable for all $m>N(k)$.
\item For any rational $\ell> 1$, there exists an integer $N(\ell) \in \mathbb{N}$ such that whenever $m >N(\ell)$ and $\ell \cdot m$ is an integer, $K_{m, \ell \cdot m}$ is \textbf{not} stable.
\end{itemize}

#toXiv_bot_toot

2025-05-28

Vardagar

lyssnar pÄ Katarina Wikars recension av Ulf Lundells senaste dagbok; vardagar 12. Den Àr uppfriskande snabb, rapp och personlig.

Jag har lyssnat pÄ halva första boken i serien. Mins att jag gillade den men slutade antagligen lÀsa pÄ grund att allt annat kommer emellan. Jag behöver vara i rÀtt sinnesstÀmning för att lÀsa. Jag s

#bcker #filosofi #Hlsa #KeepOnTruckin #kultur #vardag #p1 #SverigesRadio #UlfLundell

From my blog: piewpiew.se/blog/2025/05/28/va

Henrik Hemrinhehemrin@librem.one
2025-05-10

En kompis föreslog att det var en strandskata jag sÄg hÀromveckan. NÀr jag sedan kollade i fÄgelboken sÄg det mycket rimligt ut.

NÀsta veckans Bannerheds bevingade vÀnner i P1 handlar om strandskatan.

#strandskata #p1

Henrik Hemrinhehemrin@librem.one
2025-03-29

Med min radiomottagare instÀlld pÄ den frekvensmodulerade bÀrvÄgen runt 90-talet megahertz lyssnade jag idag pÄ reprisen av gÄrdagens Spanarna i Sveriges radio P1. Det var ett bra avsnitt.

#spanarna #SverigesRadio #P1

Andreas Stamer 📯andreasst@mastodon.nu
2025-03-21
Henrik Hemrinhehemrin@librem.one
2025-02-24

SÄja, nu har jag lyssnat pÄ dagens utgÄva av Tolvslaget i P1. Ett lugnt och stillsamt program vars innehÄll Àr förvÀntat.
#P1 #SverigesRadio #tolvslaget

2025-02-11

Sa dom att Sovjetunionen mördade 5000 polacker i Katyn? Antalet Àr kÀnt: 21857. #P1

2025-01-14

This *might* need replacement.

#3dprinting #bambulabs #bambu #p1

Henrik Hemrinhehemrin@librem.one
2025-01-01

Jag satt vid köksbordet och lyssnade pÄ dagens Vinter i P1 med Bodil Jönsson. Nu har jag ocksÄ lyssnat i efterhand pÄ första kvarten som jag missade i radioutsÀndningen.

Ett för mig lyssningsvÀrt program.

#vinter #radio #SverigesRadio #P1 #kunskap #BodilJönsson

Henrik Hemrinhehemrin@librem.one
2024-12-27

Jag tycker dagens Vinter i P1 med Jan Eliasson var mycket bra.

#SverigesRadio #vinter #p1 #JanEliasson

Jimmy Bergkvistjimpalimpa@mastodon.nu
2024-12-21

Jag gjorde misstaget att lyssna pÄ #SR #P1 i onsdags och torsdags.

Först #Socialdemokraterna 's pseudo-sd:re #Carvahlo sen nÄtt högerspöke som tycker att Ärets #julkalender Àr för politisk.

Jag har alltid tyckt att om högern vill göra mer kultur sĂ„ Ă€r dom vĂ€lkomna. Problemet Ă€r bara att sevĂ€rd kultur stĂ„r pĂ„ den svagas sida. Har alltid gjort. Överallt.

GÄ hem nutiden, du Àr full!!

#Sverige #Krimpol #Migpol #Kulpol

Stuart Longland (VK4MSL)stuartl@longlandclan.id.au
2024-12-20

So, the other day I noticed a strap on my Honeywell RU6500 #FullFaceElastomeric had broken
 this is one I was keeping around for parts, so not a big issue
 but the thought of the same fate meeting my current one worried me a bit.

Looked around, found a new Sundström SR200 going for a bargain price (AU$250
 normally they are >$550)
 beauty. It's on its way south from Mt. Isa.

Today I ordered some filters (from a local supplier here in Brisbane), mainly some #P3 filters (my main concern is #bushfire smoke and #COVID19)
 I happened to notice this little chart for the SR-510 particular filters.

allensindustrial.com.au/docume

Classes:
- P1: 80% | up to 20% leakage | Protect against Dry and Wet particles _except_ aerosols, carcinogens, radioactive particles, bacteria, *viruses*, spores or biochemicals such as enzymes or hormones
- P2: 94% | up to 6% leakage | Protect against Dry and Wet particles _except_ *viruses*, spores or biochemicals such as enzymes or hormones
- P3: 99.95% | <0.05% leakage | Protect against Dry and wet particles (all types)

It was the exceptions for "viruses" in the #P2 and #P1 filters that surprised me. I thought #P2 was more or less equivalent to #N95 and #KF94. (P3 being equivalent to #N100) I hear people singing the praises of N95s with regards to COVID-19, and definitely it beats many common alternatives, but this has me scratching my head.

The SR-510 is a P3 filter, so no biggie
 but I thought P2s were up to the task.

@auscovid19

2024-11-15

In my defence
 it was the last one on the shelf in Costco *and* it was 23.1% below list price. #Lego #McLaren #P1

A new and unopened Lego McLaren P1 kit.

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