#cauchy

[leaderoftheduckresistance]

As time progresses, the distance between my math classes that mention Cauchy is getting progressively shorter

[falseandrealultravival]

Background of Group Theory - Galois' Misfortune: Mathematics Note- 12 (Essay:last episode)

Galois

Galois is a French mathematician. Known as the originator of "group theory", he received after Abel of Norway proved that "there is no formula for the solution of quintic equations",he proved the theorem of impossibility that "there is no formula for the solution of algebraic equations of degree 5 or higher" in group theory.

Gauss guaranteed that there would always be a solution by means of the "Fundamental Theorem of Algebra", but Abel and Galois showed the impossibility and insecurity that the procedure for finding the solution cannot be known unless you try it.

"Galois lives a cursed life." A kind of madness called the French Revolution casts a dark shadow over Galois' life of only 21 years. He himself threw himself into the revolution, discovering the great theorems of insecurity and impossibility in the midst of intrigue and bargaining. However, the French mathematics community at that time was cold to Galois.

His papers have been lost or ignored many times. The paper was lost by Cauchy (seemingly on purpose), and Fourier died while in custody because of him. He wanted to enter the École Polytechnic (French's best science and engineering university), but he got angry when the examiner asked him too trivial questions and threw his quilts at him. It seems that he was treated as a kind of dangerous person.

Meanwhile, Galois falls into the trap of having a duel over a certain woman. On the eve of the duel, he scribbles a letter to his friend describing his idea of group theory and its application, the theorem of insecurity and impossibility. He blurted out, "No time, no time!" And he loses. On his deathbed, Galois tells his younger brother, "Don't cry! It takes all the courage to die at the age of twenty-one." He entrusted, "I want you to show this paper to the Germans, Gauss or Jacobi."

Gauss would have never doubted that "there is nothing left to do" when it comes to algebraic equations. But there was something he had overlooked, which Galois and his colleagues discovered. It can be said that the chaos of the French Revolution gave birth to group theory.

Group theory is not usually called “Théorie de Galois”. Names are only in French. It is the cowardice of the French to bully Galois so much and then to use Galois' name shrewdly.

(2023.04.22)

Rei Morishita

[theoremlemmaandcorollary]

#27 Teorema del valor medio de Cauchy . . . . #meanvalue #meanvaluetheorem #Cauchy #cauchytheorem #valormedio #cauchymeanvaluetheorem #teoremadelvalormedio #teoremadelvalormediodecauchy #maths #math #mathematics #matematicas #theorem #teorema #theorems #teoremas #corollary #corolario #lema #calculus #calculo #integrals #integral #integrales #analisis #analysis https://www.instagram.com/p/Cp4KdUFMuaC/?igshid=NGJjMDIxMWI=

[foolsdome]

my rendition of Augustin-Louis Cauchy (1789-1857), a prominent french mathematician, as an e-girl

[coochiequeens]

Finally a peice that talks about how 5 of the 6 in the people killed in the sydney stabbings were women. And yes he was mentally ill but he felt entitled to a girlfriend.

By Victoria Smith 16 April, 2024

Did Joel Cauchi, the man who killed six people in a Sydney shopping centre, do so because he was mentally ill? Or did he do it because he hated women?

Five out of six of Cauchi’s victims were women, which does seem targeted. Nonetheless, according to his family, Cauchi, 40, “battled with mental health issues since he was a teenager”. For this reason, some have found talk of misogyny unseemly, if not exploitative. To categorise Cauchi’s act as male violence against women, if not terrorism underpinned by misogynist ideology, can be appear dismissive of genuine sickness. Sometimes, bad things just happen because people are unwell. 

For women who live with men who have severe mental health diagnoses, there is little comfort in discussions such as these. On the one hand, there is an enormous amount of pressure to downplay the idea that mentally ill men are more likely to be violent than other men (they are, but to say so is viewed as contributing to stigma). On the other hand, is it fair for a man with severe mental illness to be judged by the same moral standards as other men? Shouldn’t we be recognising that they cannot control their perceptions and fears?

See rest of article

The Sydney attacker was desperate for a girlfriend, his family has revealed as police confirmed that he had targeted women.

Joel Cauchi killed five women and one man during a knife attack on the Bondi Junction Westfield shopping centre on Saturday.

Karen Webb, the New South Wales police commissioner, said: “The videos speak for themselves. It’s obvious the offender had focused on women and avoided the men.”

The majority of the 12 people Cauchi seriously wounded were female, including a baby girl.

Andrew Cauchi, his father, said on Monday he knew why his mentally unwell son had targeted women. The 76-year-old told reporters outside his home in Queensland: “Because he wanted a girlfriend and he’s got no social skills and he was frustrated out of his brain.”

Describing his son as “very sick”, he described trying to deal with the feelings of “loving a monster”.

A “heroic” policewoman who stopped a lone knifeman mid-rampage during a killing spree in a Sydney shopping centre has been named.

In one of several heroic attempts to disarm the attacker on Saturday, Amy Scott, a NSW Police Inspector, walked up calmly behind the attacker and ordered him to drop his weapon.

When he refused to do so and lunged at her with a knife, she shot him.

Six people were killed after the culprit – later identified by police as Queensland man Joel Cauchi – went on a stabbing spree in Westfield Bondi Junction, including a mother whose baby is reportedly now in a critical condition.

“She is certainly a hero. There is no doubt that she saved lives through her action,” Anthony Albanese, the Australian prime minister, said on Saturday.

[noelements-setempty]

Maybe the real numbers are the limits we converged to along the way

[guy60660]

Ben Cauchi

[intriguingpeoplebyangelafloyd]

JOEL CAUCHI

BONDI JUNCTION WESTFIELD ATTACK

Joel Cauchi

13 April 2024

Six people (5 women and 1 man) have been murdered in a mass killing in Bondi Junction Westfield on Saturday, when at 3pm, Queensland man Joel Cauchi walked into the shopping centre wearing a green and yellow sport jersey and then left. He returned 10 minutes later and then started stabbing and killing people, mainly targeting women. There are twelve people in hospital suffering serious injuries.

            Ashlee Good was stabbed to death by Cauchi, who also stabbed her 9-month year old baby daughter who had to get emergency surgery. Australian millionaire John Singleton’s daughter, Dawn, 25, was also a victim; and there were also two victims who from overseas.

            There were many heros yesterday, including a man from Russia who tried to prevent the attacker from killing more people by fighting him off with a bollard. There were men who ran after the perpetrator, one of the them carrying a chair. One man walking behind a woman with her children (possibly his partner and children) realised the danger they were in and turned around and attempted blocking the way to protect the three. Instead of running towards the man, Cauchi dodged him and ran into a different direction.

The NSW police officer, Amy Scott, who was the only police officer on site at the time who ran towards Cauchi and shot and killed him and saved more lives in doing so.

            The perpetrator was known to police and had mental health issues. It was said that he had no police record but there are rumours online that he had been previously arrested for DV and assault - however, this is all heresay.

            There was a woman, 36, who was stabbed on Bondi Beach on Friday, 12 April - the day before the Westfield stabbings. The perpetrator of that attack hasn’t been arrested and was still under investigation when the Westfield stabbing took place. Some believe that the Bondi Beach stabbing may have been linked to Cauchi or perhaps it was just a coincidence?

            Some commenters believe he was a drug addict, we don’t know if that is true or not. One man who knew him up in QLD told the media that Cauchi owned knives which he named his ‘everyday knives’. On his Facebook account he described himself as ‘single’. He was known to go to nudist beaches, strip clubs as well as listing himself on an escort website in Sydney in June last year.

            Criminal psychologist Dr Watson-Munro stated that Cauchi ‘knew what he was doing’ and that he was ‘bad not mad’ and ‘there’s clearly planning attached to this’. He stated, “But here was somebody who was on a mission, he knew what he wanted to do and he did it with deadly affect.”

            He came down from QLD to Sydney only a month ago, rented a small storage facility and went to Bondi to learn how to surf. He went surfing at Bondi 6-days ago. In 2010, he was an online English tutor. There is still a lot of information we don’t know as yet as the investigation continues.

#2024bondijunctionstabbings #bondijunction #bondijunctionstabbings #joelcauchi #bondijunctionwestfield #westfieldbondijunction

[mysticlustre]

art nouveau house maison cauchie (1905) by architect paul cauchie, in Bruxelles Belgium

[detournementsmineurs]

"Sgraffites" dans le salon de la Maison Cauchie construite par Paul Cauchie pour sa famille (1905), Bruxelles, mai 2023.

[ozu-teapot]

Bob le Flambeur | Jean-Pierre Melville | 1956

Isabelle Corey, Daniel Cauchy

[scenephile]

No one’s forcing you

[teabutmakeitazure]

professor last thursday: the quiz will cover what we did only till today

professor today: so that was a fucking lie-

[deememm]

A Cauchy Sequence by @luvrsreprise (moon2saturn)

“Your lil cherry earrings,” his eyes flicker up, then back down, “They match your nails.” And your lips.

“Yeah?” She could lean in now, close the space that was excruciatingly big and small. A tilt forwards and their noses would bump.

“Yeah. It’s,” he swallows, hard, “45.” Acute.

Had to do one of my ABSOLUTE FAVOURITE Fexi one-shots!! From beginning to end, I was completely enamored with this Fez and Lexi. The thought of them being academic mathlete rivals, being total geeks over math, and then falling in love during the process. My love for this fic is exponential. 🥺

[ungrandvide]

Georges Cauchy

vu au musée Trinkhall

[klavierpanda]

3 exams down, 5 to go