Just published my first paper on arXiv and I'm already getting spam emails from predatory journals. "Dear Prof. Dr." when I'm neither a professor nor a PhD, lmao I can't 🤣🤣🤣 #AcademicSky #MathSky

is this a good score for the graph isomorphism game (link in alt text)

Is arXiv down or am I the only one who can't login right now?

Disquastung

Ok ngl this looks over for Alireza. I don't see how black can keep pieces on the board without self-destructing. It looks like a dead draw, but then again what do I know about chess.

Arjun with the exchange sac 🔥🍿 #chess #chesspunks

The final round of the Grand Swiss #chess tournament is always an insane game-theoretic battle. I remember Nakamura offering a draw to Arjun literally seconds after Giri beat Esipenko in 2023... this is so scuffed but it makes for a great viewing experience #chesspunks

I'm about to publish my first coauthored paper soon. I only contributed 3-4 pages out of ~20, but it still feels surreal. Just a year ago I didn't think any mathematician would've seen something in me to give me this opportunity, especially considering my undergrad grades. (1/4)

guys literally only want one thing (to overfull her hbox with a shape that's 26.85894pt too wide) and it's fucking disgusting #MathSky

So this is how I found out that my institution affiliation expired on overleaf. Crazy how it took a whole year before overleaf figured out that I'm no longer at Cambridge lol

My hundreds of cold emails are finally paying off. Managed to impress some mathematicians with my knowledge of their field's literature and now we're collaborating on a paper on equal terms 😊 This might finally be the beginning of my academic redemption...

So you're telling me that I've been drawing commutative diagrams in tikzcd manually this whole time when I could've used tikzcd.yichuanshen.de instead? How have I not found this earlier... Absolutely mindblown. #MathSky

Ever just wonder what it's like for a set to experience getting acted on by a group? Or, conversely, for an abstract group to experience manifesting as a permutation group through acting on a set? Imagine if mathematical objects had feelings... #MathSky

I had 38 seconds on the clock when I got to this position in a bullet game. Can you find the forced checkmate within this time? (I didn't - chat, am I cooked?) #chesspunks

#MathSky #AcademicSky Does anyone have a SCMP subscription? I want to see the rest of this article: www.scmp.com/news/china/s...

#MathSky The legendary mathematician Peter J. Cameron shares a heartfelt blog post about his retirement, reflecting on his career and mathematical family. A great read for both mathematicians and non-mathematicians alike: cameroncounts.wordpress.com/2025/08/08/m...

How did those "words" make it to the Cambridge dictionary before "clopen", "octonion", "anabelian", "permutahedron", etc. Massive Cambridge L imo #MathSky

Found an interesting MSE question (link in alt text) #MathSky

Found an interesting MSE question (link in alt text) #MathSky

How to say "thank you" in Spanish #MathSky

Every few days my parents would bring up my lack of accomplishments and start accusing each other for being responsible for my failures. It always turns into a violent fight, and I feel helpless. I wish I could succeed in life so that they'd stop fighting for once and for all.

I don't understand the intuition behind comultiplication in (co/bi)algebras. Yes I'm aware that it's the dual of multiplication, but categorical duality means nothing to me in terms of intuition. Is there a better explanation of how to find an expression for Δ(x) given μ? #mathsky

"wlog sps A diag bc evecs of A lin indep" bro icl ts pmo sm rn 💔

#MathSky I created a math stack exchange account just to ask this question. I might start posting there regularly so feel free to check out my page math.stackexchange.com/questions/50...

#MathSky I created a math stack exchange account just to ask this question. I might start posting there regularly so feel free to check out my page math.stackexchange.com/questions/50...

Shower thought: Consider a compact, simply-connected S⊂ℝ². Given a fixed L<<|∂S| and the function f:∂S→[0,∞) where f(x) is the signed area (-ve if outside ∂S) enclosed by the segment of ∂S of length L centered at x & the chord joining said segment's endpoints, can we deduce S's shape? #MathSky

"Abelian" and "commutative" mean the same thing, yet you always hear mathematicians saying "abelian group" and "commutative ring" but not "abelian ring" or "commutative group". We should start doing the latter tbh #MathSky

Why is so little known about the representation theory of the symmetric group over positive-characteristic fields? #mathsky

What's the difference between an alcoholic mathmo and a nocturnal emission? The former does sheets between shots, while the latter involves unloading shots between sheets. #MathSky

Society needs to learn how to deal with this. Helping out others is great, them interpreting it differently is less great but after clarification should be forgiven. If after clarification they still are mad then they need to grow up

An acquaintance keeps on asking me the same questions every few days, so today I sent him a document containing the answers to most of the FAQs I could think of, telling him that he could refer to this from now on. I was met with anger. Why are people like this?

An acquaintance keeps on asking me the same questions every few days, so today I sent him a document containing the answers to most of the FAQs I could think of, telling him that he could refer to this from now on. I was met with anger. Why are people like this?

What's the difference between an alcoholic mathmo and a nocturnal emission? The former does sheets between shots, while the latter involves unloading shots between sheets. #MathSky

What did the algebraic combinatorialist say to the representation theorist upon receiving a collaboration request? "Schur! Weyl we're at it, check out this new family of pseudoquasisymmetric polynomials indexed by weakly semi-substandard six-dimensional Young multi-tableaux!" #MathSky

SageMath is actually goated at algebraic combinatorics fr #MathSky

Why does it take FOREVER to create a recovery drive and perform a bare metal recovery (full factory reset) for a windows laptop. It's been nearly a whole day and I'm still waiting...

Board game: Chess Card/party game: Avalon / One Night Ultimate Werewolf Video game: Bloons Tower Defense (the entire series including BMC & Battles)

This trend has been going viral on tw*tter so I'll cross-post my entry here as well. Four math books that had a big influence on my mathematical thinking. Your turn. #MathSky #AlgComb

This trend has been going viral on tw*tter so I'll cross-post my entry here as well. Four math books that had a big influence on my mathematical thinking. Your turn. #MathSky #AlgComb

Oh well, the 20% happened. Not surprised tbh, should've anticipated a higher likelihood for this. Basically what happened is that an interview went really well, they offered me to join asap and then changed their mind as soon as they found out about my undergrad grades.

Life update soon... I'm 80% sure at this point that good news is about to come in the next few days :D

Hey babe, are you the type of conjugate-partition symmetry exhibited by Macdonald polynomials? Cuz damn, you're a (q,t)! #mathsky #algcomb

Yes I have considered other paths; in fact I'm currently applying for many careers in parallel, but at the same time I'm not giving up on math. Why? Because I like it (it's weird imagining myself doing something that isn't math), and it's not a sport where only the top few hundred players (1/5)

I guess I should clarify. I haven't *confirmed* that I'm going into industry; I'm just saying that it's an extra option I've started considering in parallel to my attempts to get into grad school. As to what type of company/role(s) I'm setting my sights on, R&D in tech.

Symmetric function theorists: Since the plethystic substitution & evaluation maps don't commute in general due to an extra factor of (-1)^n involved when evaluating the plethysm of a negation (a problem when n is odd), would a characteristic 2 setting solve this problem? #MathSky #AlgComb

Alright, since you asked, I composed a chess puzzle just for this occasion. See below:

Symmetric function theorists: Since the plethystic substitution & evaluation maps don't commute in general due to an extra factor of (-1)^n involved when evaluating the plethysm of a negation (a problem when n is odd), would a characteristic 2 setting solve this problem? #MathSky #AlgComb

I guess I should clarify. I haven't *confirmed* that I'm going into industry; I'm just saying that it's an extra option I've started considering in parallel to my attempts to get into grad school. As to what type of company/role(s) I'm setting my sights on, R&D in tech.

Yes I have considered other paths; in fact I'm currently applying for many careers in parallel, but at the same time I'm not giving up on math. Why? Because I like it (it's weird imagining myself doing something that isn't math), and it's not a sport where only the top few hundred players (1/5)

ik bluesky isn't the best place for this but I really wanna find this earworm. All I know is that it's probably mando/canto/J-pop, in B♭ major, and notoriously repeats the chord progression Ia-Vb-via-Ic-IVa-Ib-ii7a-Va with these exact inversions throughout the whole song. Ideas?