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@matematico314@social.linux.pizza
2026-07-07 04:49:11
Content warning: Contém matemštica (agora coloco CW pra não traumatizar rs)

Nunca tinha parado para pensar que um subanel de um anel com unidade pode ter uma unidade diferente da unidade do anel mãe, pois pode ter um elemento que funcione como neutro multiplicativo apenas para elementos deste subanel. Por exemplo, considere o conjunto S das matrizes reais 2 x 2 em que todos os coeficientes, que não o superior esquerdo, sejam nulos. S é obviamente um subanel do anel das matrizes reais 2 x 2. Mas a sua unidade não é a matriz identidade, e sim o elemento de S cujo coef…

@mxp@mastodon.acm.org‬
2026-08-04 11:19:26

I agree that discoverability is important, but ACM is a learned society first. Thus, traffic to the DL shouldn’t be the sole metric. I’m not paying membership dues and (outrageous) conference fees on top of it just for the publishing.
It’s a part, for sure, but more importantly, it’s a community that upholds certain academic and professional principles (notably the Code). Or at least it should be.

‪@mxp@mastodon.acm.org‬
2026-08-04 11:19:26

I agree that discoverability is important, but ACM is a learned society first. Thus, traffic to the DL shouldn’t be the sole metric. I’m not paying membership dues and (outrageous) conference fees on top of it just for the publishing.
It’s a part, for sure, but more importantly, it’s a community that upholds certain academic and professional principles (notably the Code). Or at least it should be.

@arXiv_csCR_bot@mastoxiv.page
2026-07-24 08:37:09

Crosslisted article(s) found for cs.CR. arxiv.org/list/cs.CR/new
[1/1]:
- TopoGuard: Graph Theory Based Defenses Against Split-Knowledge Attacks on RAG
Chahana Dahal, Zuobin Xiong
arxiv.org/abs/2607.20437 mastoxiv.page/@arXiv_csCL_bot/
- Isolating LLM Alignment from Regex: Zero Coverage and Metric-Dependent Divergence Under Adversari...
Alexandre Cristov\~ao Maiorano
arxiv.org/abs/2607.20494 mastoxiv.page/@arXiv_csAI_bot/
- Edit-Neighboring Data Streams and Privacy under Continual Observation
Joel Daniel Andersson, Anamay Chaturvedi, Monika Henzinger, Roodabeh Safavi
arxiv.org/abs/2607.20727 mastoxiv.page/@arXiv_csDS_bot/
- Beyond Heavy Log Curation: Perplexity-Based APT Detection via Unsupervised, Context-Augmented Lan...
Shoya Otsu, Kei Suzuki, Toshiaki Koike-Akino, Jing Liu, Ye Wang
arxiv.org/abs/2607.20832 mastoxiv.page/@arXiv_csLG_bot/
- The Consensus Number of Untraceable Cryptocurrencies
Christian Cachin, David Lehnherr, Juan Villacis, Fran\c{c}ois-Xavier Wicht
arxiv.org/abs/2607.20929 mastoxiv.page/@arXiv_csDC_bot/
- Weak Private Information Retrieval for Graph-based Storage
Shodasakshari Vidya, Chandan Anand, Prasad Krishnan
arxiv.org/abs/2607.21014 mastoxiv.page/@arXiv_csIT_bot/
- Risk-Limiting Audits for Parliamentary Majorities
Jack Freestone, Dennis Leung, Damjan Vukcevic
arxiv.org/abs/2607.21082 mastoxiv.page/@arXiv_statAP_bo
- Agree on the Model, Verify the Inference: GKR Protocols for HND-Based Transformer Inference
Xiaolong Liang, Juanjuan Li, Rui Qin, Yisheng Lv
arxiv.org/abs/2607.21162 mastoxiv.page/@arXiv_csLG_bot/
- Advances in STV Margin Computation
Michelle Blom, Alexander Ek, Peter J. Stuckey, Vanessa Teague, Damjan Vukcevic
arxiv.org/abs/2607.21178 mastoxiv.page/@arXiv_csGT_bot/
- Unconditional Unclonable Encryption
Prabhanjan Ananth, Amit Sahai
arxiv.org/abs/2607.21551 mastoxiv.page/@arXiv_quantph_b
toXiv_bot_toot

@Dragofix@veganism.social
2026-08-03 22:12:09

In Michoacšn, Mexico, drying soil threatens water supplies and avocados, says study news.mongabay.com/2026/07/in-m

@memeorandum@universeodon.com
2026-08-13 19:05:50

Steve Bannon and former Trump DHS adviser Todd Bensman agree ICE should be present at polling places (Media Matters for America)
mediamatters.org/election-deni
memeorandum.com/260813/p70#a26

@matematico314@social.linux.pizza
2026-08-29 04:06:42

Fico imaginando meus alunos na night aí numa madrugada de sexta-feira e recebendo um monte de notificações do sistema de coisas que eu coloquei no classroom deles agora hš pouco rs.

@matematico314@social.linux.pizza
2026-08-29 05:01:55

Vou largar o celular agora e indo pra cama. Jš era para eu estar deitado hš séculos, mas fiquei obcecado tentando terminar o trabalho e perdi a noção da hora. Boa madrugada a quem fica.