#frg — Public Fediverse posts
Live and recent posts from across the Fediverse tagged #frg, aggregated by home.social.
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#paperOfTheDay "Derivative expansion of the exact renormalization group" from 1994 is a follow-up on yesterday's paper, by the same author. Here, he uses the (then) new functional #renormalization group #FRG equations and introduces a certain expansion in momenta, which he then studies for the scalar flip-symmetric model (i.e. the avatar of phi^4 theory). This gives rise to two non-linear differential equations, which can be solved numerically, and produce numerical values of the critical exponents rather close to the correct ones.
It seems to me that this method is surprisingly simple -- solving few differential equations instead of coupled integral equations -- and the author claims repeatedly that it can be systematically improved at will. It didn't entirely become clear to me why he does not do that. After all, computing critical exponents for phi^4 theory is one of the globally accepted benchmarks for methods in field theory and statistics, which would give much credibility to this new method. Perhaps the concrete technical challenges were too big, even if a systematic expansion is possible conceptually.
I would be interested to know if now, 30 years later, this systematic momentum expansion has been continued to higher order, or if it has been replaced by another method.
doi.org/10.1016/0370-2693(94)90767-6 -
#frg #israel #palestine : #gaza / #genocide / #elbitsystems / #directnonviolentaction / #ulm5 / #criminalization
„In addition to charges of trespass and damage to property, the group is accused of "membership of a criminal organisation" - namely Palestine Action Germany - under Section 129 of the German penal code.
This legal statute is commonly applied in cases of "terrorism" and organised crime, and can lead to a prison sentence of up to five years.“
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#frg #israel : #automobileindustry / #multinational / #militarization / #armament
„ #Volkswagen is considering plans to convert one of its German car factories into a production hub for Israel’s missile defence systems, the Financial Times reported on Tuesday.
The carmaker has held talks with Israel's #RafaelAdvancedDefenseSystems about repurposing its #Osnabruck plant, shifting from vehicle production to manufacturing components for Israel’s #IronDome system.“
https://www.middleeasteye.net/news/nazi-era-weapons-maker-volkswagen-eyes-return-arms-production-time-israel -
#frg #spain #usa #israel #iran : #warofaggression / #dissent / #servility / #opportunism / #foreignpolicy
„Spain’s leader has taken a strong position in refusing the US demand to use Spanish bases to strike Iran. Europe should show solidarity in the face of Trump’s threats.“
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#frg #spain #usa #israel #iran : #warofaggression / #dissent / #servility / #opportunism / #foreignpolicy
„Spain’s leader has taken a strong position in refusing the US demand to use Spanish bases to strike Iran. Europe should show solidarity in the face of Trump’s threats.“
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#frg #spain #usa #israel #iran : #warofaggression / #dissent / #servility / #opportunism / #foreignpolicy
„Spain’s leader has taken a strong position in refusing the US demand to use Spanish bases to strike Iran. Europe should show solidarity in the face of Trump’s threats.“
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#frg #spain #usa #israel #iran : #warofaggression / #dissent / #servility / #opportunism / #foreignpolicy
„Spain’s leader has taken a strong position in refusing the US demand to use Spanish bases to strike Iran. Europe should show solidarity in the face of Trump’s threats.“
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#frg #israel #palestine #war #gaza #genocide #filmfestival #city #berlin #protest #openletter #government
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… said that Wenders was being pressured by a certain group of activists – "Pali activists" – to "say more, do more." In his opinion, Wenders had "found exactly the right words." As always, the Berlinale was a very political event. "All the sensitive issues are addressed."
(Translation into German with support from Deepl)
Original article here (German only):
https://www.tagesschau.de/kultur/berlinale-kritik-weimer-100.html
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#frg #israel #palestine #war #gaza #genocide #filmfestival #city #berlin #protest #openletter #government
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… of the letter also criticized jury president Wim Wenders and accused the Berlinale of censorship. Weimer refutes this accusation, saying that there is no censorship — the Berlinale is a place where opinions clash and open discussion takes place. The range of political debate is enormous.
The Minister of State for Culture also backed jury president Wenders. He …
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#frg #israel #palestine : #war / #gaza / #genocide / #filmfestival / #city / #berlin / #protest / #openletter / #government
(No surprise…)
„After open letter
Weimer defends Berlinale against criticismIn an open letter, artists accuse the Berlinale of not taking a strong enough stance on the Gaza war. Minister of State for Culture Weimer rejects this criticism and stands behind jury president Wenders. (…)
Criticism of jury president
WendersThe signatories…
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#frg #israel #palestine : #war / #gaza / #warvictims / #children / #government / #humanitarianaid
(I feel sick to my stomach!)
„German government hesitates to take in sick children from Gaza
Five German cities have offered to take in and treat seriously ill and traumatized children from the Gaza Strip. But the conservative-led ministries responsible are putting the brakes on.“
(Original source; german only:)
https://www.dw.com/de/bundesregierung-z%C3%B6gert-bei-aufnahme-kranker-kinder-aus-gaza/a-73566263?maca=de-rss-de-all-1119-rdf -
#israel #frg #palestine : #war / #gaza / #armsexport / #foreignpolicy / #complicity / #ngo / #ecchr
(German weapons, German money murder all over the world)
„Germany remains one of Israel's top arms suppliers, a situation likely to persist under Friedrich Merz. According to Lilian Löwenbrück from the European Center for Constitutional and Human Rights, politicians and manufacturers could face charges for complicity in crimes against international law.“
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#frg #israel : #war / #gaza / #elbit / #justice / #elsc / #armsexports / #blockade
„Human rights lawyers (…) seeking to block a 150-tonne shipment of military-grade explosives aboard [a] German cargo ship …, bound for Israel.
The European Legal Support Center (ELSC) (…) arguing that the shipment of primarily RDX explosives could be used in munitions for Israel's military operations in Gaza, potentially contributing to alleged war crimes and crimes against humanity.“
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#Union|s & #Cooperative|s have historically been intertwined, but those times are long over, at least in #FRG. Part of the reason is that the structure of unions in #FRG is very different from the rest of the globe. So when it comes to #BasicIncomeGrant and #CooperativeEconomy, I totally gave up on unions a long time ago. You won't see me as a member of a union.
Also, the political spectrum is different in #Europe & #US.
E.g. #Obama is a #rightwing #SocialDemocrat by our standards. 🌺
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#Union|s & #Cooperative|s have historically been intertwined, but those times are long over, at least in #FRG. Part of the reason is that the structure of unions in #FRG is very different from the rest of the globe. So when it comes to #BasicIncomeGrant and #CooperativeEconomy, I totally gave up on unions a long time ago. You won't see me as a member of a union.
Also, the political spectrum is different in #Europe & #US.
E.g. #Obama is a #rightwing #SocialDemocrat by our standards. 🌺