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Justin Curry

@currying.bsky.social

Associate Professor of Math and Statistics at UAlbany

543 Followers  |  424 Following  |  17 Posts  |  Joined: 21.11.2024  |  1.886

Latest posts by currying.bsky.social on Bluesky

Starter Pack: Max Planck scientists on Bluesky

Starter Pack: Max Planck scientists on Bluesky

Many Max Planck scientists have started sharing their #research findings on #BlueSky. Follow their posts and join the conversation! πŸ‘‹ go.bsky.app/BYcBy6R #StarterPack

17.11.2025 11:15 β€” πŸ‘ 116    πŸ” 41    πŸ’¬ 5    πŸ“Œ 2

I am sorry to say that AIs absolutely are going to replace regular office workers.

22.11.2025 23:34 β€” πŸ‘ 17    πŸ” 4    πŸ’¬ 1    πŸ“Œ 0
It's an artistic representation of a circulatory system walking through a kitchen, as drawn by Dave Gibbons and written about by Alan Moore.
It happens a lot 'round here.

It's an artistic representation of a circulatory system walking through a kitchen, as drawn by Dave Gibbons and written about by Alan Moore. It happens a lot 'round here.

Happy There Is A Circulatory System Walking Through The Kitchen Day to all who celebrate.

10.11.2025 10:54 β€” πŸ‘ 17950    πŸ” 6955    πŸ’¬ 122    πŸ“Œ 207

Sadly, winning an election has always been more important to the Dems. We are terrible governors and this is why the Rs have been so frighteningly good at breaking things. I don’t think the Dems could do the same if they tried.

10.11.2025 12:19 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

No health care, no deal.

10.11.2025 01:33 β€” πŸ‘ 28145    πŸ” 4330    πŸ’¬ 1159    πŸ“Œ 263

arxiv.org/abs/2511.01272
/Design and Fabrication of Origami-Inspired Knitted Fabrics for Soft Robotics/
Sehui Jeong, Magaly C. Aviles, Athena X. Naylor, Cynthia Sung, Allison M. Okamura

10.11.2025 02:50 β€” πŸ‘ 1    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0
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Why can't we just say 0/0=1?

I showed one way why this would break math. What's another way?

09.11.2025 15:17 β€” πŸ‘ 20    πŸ” 5    πŸ’¬ 2    πŸ“Œ 0
Preview
James Watson, dead at 97, was a scientific legend and a pariah among his peers James Watson, the co-discoverer of the structure of DNA who died Thursday at 97, was a scientific legend and a pariah among his peers.

A Sharon Begley byline, almost 5 years after her death.

Upon hearing the news James Watson had died, a STAT reporter said in our Slack, "I wish I could read what Sharon would have written."

Incredible news: Sharon in fact did pre-write a Watson obit. And it is masterful and excoriating.
πŸ§ͺ🧬🧫

08.11.2025 13:39 β€” πŸ‘ 6044    πŸ” 1984    πŸ’¬ 112    πŸ“Œ 341

😭

02.04.2025 23:21 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
Meet Sayan Mukherjee
YouTube video by Rhodes Information Initiative at Duke Meet Sayan Mukherjee

RIP Sayan Mukherjee. You were a fantastic mentor, collaborator, and friend.

youtu.be/XF8B5afS1DI?...

02.04.2025 22:50 β€” πŸ‘ 7    πŸ” 2    πŸ’¬ 1    πŸ“Œ 0
From p.1 of https://math.jhu.edu/~eriehl/context.pdf:

In 1941, Saunders Mac Lane gave a lecture at the University of Michigan in which
he computed for a prime p that Ext(Z[
1
p
]/Z, Z)  Zp, the group of p-adic integers, where
Z[
1
p
]/Z is the PrΓΌfer p-group. When he explained this result to Samuel Eilenberg, who had
missed the lecture, Eilenberg recognized the calculation as the homology of the 3-sphere
complement of the p-adic solenoid, a space formed as the infinite intersection of a sequence
of solid tori, each wound around p times inside the preceding torus. In teasing apart this
connection, the pair of them discovered what is now known as the universal coefficient
theorem in algebraic topology, which relates the homology Hβˆ— and cohomology groups H
βˆ—
associated to a space X via a group extension [ML05]:
(1.0.1) 0 β†’ Ext(Hnβˆ’1(X),G) β†’ H
n
(X,G) β†’ Hom(Hn(X),G) β†’ 0 .
To obtain a more general form of the universal coefficient theorem, Eilenberg and Mac
Lane needed to show that certain isomorphisms of abelian groups expressed by this group
extension extend to spaces constructed via direct or inverse limits. And indeed this is the
case, precisely because the homomorphisms in the diagram (1.0.1) are natural with respect
to continuous maps between topological spaces.

From p.1 of https://math.jhu.edu/~eriehl/context.pdf: In 1941, Saunders Mac Lane gave a lecture at the University of Michigan in which he computed for a prime p that Ext(Z[ 1 p ]/Z, Z)  Zp, the group of p-adic integers, where Z[ 1 p ]/Z is the PrΓΌfer p-group. When he explained this result to Samuel Eilenberg, who had missed the lecture, Eilenberg recognized the calculation as the homology of the 3-sphere complement of the p-adic solenoid, a space formed as the infinite intersection of a sequence of solid tori, each wound around p times inside the preceding torus. In teasing apart this connection, the pair of them discovered what is now known as the universal coefficient theorem in algebraic topology, which relates the homology Hβˆ— and cohomology groups H βˆ— associated to a space X via a group extension [ML05]: (1.0.1) 0 β†’ Ext(Hnβˆ’1(X),G) β†’ H n (X,G) β†’ Hom(Hn(X),G) β†’ 0 . To obtain a more general form of the universal coefficient theorem, Eilenberg and Mac Lane needed to show that certain isomorphisms of abelian groups expressed by this group extension extend to spaces constructed via direct or inverse limits. And indeed this is the case, precisely because the homomorphisms in the diagram (1.0.1) are natural with respect to continuous maps between topological spaces.

So Mac Lane and Eilenberg invented category theory so they could prove the universal coefficient theorem, which they discovered because Saunders showed an algebra computation to Sammy and Sammy went "Huh. That's how I compute the complement of the p-adic solenoid inside a 3-sphere."

21.03.2025 03:46 β€” πŸ‘ 36    πŸ” 7    πŸ’¬ 3    πŸ“Œ 0
Preview
The State of LLM Reasoning Models Part 1: Inference-Time Compute Scaling Methods

I just shared a new article, "The State of Reasoning Models", where I am exploring 12 new research articles on improving the reasoning capabilities of LLMs (all published after the release of DeepSeek R1): magazine.sebastianraschka.com/p/state-of-l...

Happy reading!

08.03.2025 14:37 β€” πŸ‘ 61    πŸ” 14    πŸ’¬ 1    πŸ“Œ 1
Preview
Neurosymbolic artificial intelligence via large language models and coherence-driven inference We devise an algorithm to generate sets of propositions that objectively instantiate graphs that support coherence-driven inference. We then benchmark the ability of large language models (LLMs) to re...

LLMs may be good for something new. Some of them are good at β€œfast thinking” that sets up β€œslow thinking” by combinatorial optimization. This flavor of β€œcoherence” has deep roots in cognitive science. We made an algorithmic benchmark: o1, Sonnet, and QwQ do very wellβ€”apparently superhuman, even.

20.02.2025 10:29 β€” πŸ‘ 2    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0

Maybe a hot take, but what about the following advice to the next gen:
Don't get an AI degree; the curriculum will be outdated before you graduate. Instead, study math, stats, or physics as your foundation, and stay current with AI through code-focused books, blogs, and papers.

09.02.2025 15:36 β€” πŸ‘ 147    πŸ” 22    πŸ’¬ 12    πŸ“Œ 7
Post image 02.02.2025 03:56 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0
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β€œThe essence of tyranny is the denial of complexity.”
― Jacob Burckhardt
.
.
.
.
.

Made with #python #mlx #matplotlib
#particlelenia #alife

11.01.2025 16:02 β€” πŸ‘ 53    πŸ” 6    πŸ’¬ 2    πŸ“Œ 1

Sweet! Let’s catch up while we’re there

01.01.2025 22:17 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
A mathematical visualization of polynomial roots creating a soft, organic shape against an off-white background. The image has a delicate, watercolor-like quality with translucent layers in pale blue and dusty rose. The structure has four-fold symmetry with rounded lobes at each corner containing subtle circular patterns. The center features a teardrop-shaped void. The entire composition is rendered with a grainy, textured effect that enhances the watercolor appearance. The overall effect is minimalist and ethereal, resembling a sophisticated botanical illustration.

A mathematical visualization of polynomial roots creating a soft, organic shape against an off-white background. The image has a delicate, watercolor-like quality with translucent layers in pale blue and dusty rose. The structure has four-fold symmetry with rounded lobes at each corner containing subtle circular patterns. The center features a teardrop-shaped void. The entire composition is rendered with a grainy, textured effect that enhances the watercolor appearance. The overall effect is minimalist and ethereal, resembling a sophisticated botanical illustration.

Polynomial roots mist.
#MathArt #Mathematics
Made with #python #matplotlib #numpy #sympy

01.01.2025 21:19 β€” πŸ‘ 86    πŸ” 13    πŸ’¬ 2    πŸ“Œ 2

*hugs* See you at JMM?

01.01.2025 20:40 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0
The final Calvin and Hobbes cartoon. The entire page is mostly white as they're in the winter snow. The pair is walking with a sledge, nicely duffled in in scarves, hats, gloves. Calvin delightedly exclaims 'wow, it really snowed las night! Isn't it wonderful?'. Hobbes follows up with 'Everything familiar has disappeared! The world looks brand-new!' -- A new year... a fresh, clean start!' adds Calvin. As they look over the landscape, Hobbes observes 'it's like having a big white sheet of paper to draw on!' -- 'A day full of possibilities!' Calvin affirms. They get ready on their sledge and Calvin tells his friend 'it's a magical world, Hobbes, ol' buddy... let's go exploring!', and the pair sledges off into the wintery landscape.

The final Calvin and Hobbes cartoon. The entire page is mostly white as they're in the winter snow. The pair is walking with a sledge, nicely duffled in in scarves, hats, gloves. Calvin delightedly exclaims 'wow, it really snowed las night! Isn't it wonderful?'. Hobbes follows up with 'Everything familiar has disappeared! The world looks brand-new!' -- A new year... a fresh, clean start!' adds Calvin. As they look over the landscape, Hobbes observes 'it's like having a big white sheet of paper to draw on!' -- 'A day full of possibilities!' Calvin affirms. They get ready on their sledge and Calvin tells his friend 'it's a magical world, Hobbes, ol' buddy... let's go exploring!', and the pair sledges off into the wintery landscape.

31 December 1995. Still the perfect goodbye.

31.12.2024 12:21 β€” πŸ‘ 23619    πŸ” 5303    πŸ’¬ 290    πŸ“Œ 318
Post image 29.12.2024 03:50 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

Yessss…K_0 = Euler Calculus!

16.12.2024 14:34 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
Preview
Alternative grading in probability and statistics How we used competency-based grading for 300 computer science students at a Dutch university

Today at Grading for Growth: A guest post from two Dutch faculty on how they're using alternative grading in probability and statistics.

gradingforgrowth.com...

16.12.2024 14:06 β€” πŸ‘ 9    πŸ” 4    πŸ’¬ 0    πŸ“Œ 0
Post image Post image Post image Post image

Random autumn snapshots

06.12.2024 03:22 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
Post image 22.11.2024 04:43 β€” πŸ‘ 16935    πŸ” 2968    πŸ’¬ 137    πŸ“Œ 141

my younger brother is at the point of his undergraduate math degree (taking galois theory) where he no longer believes in the reality of the irrationals. they grow up so fast!

01.12.2024 05:43 β€” πŸ‘ 20    πŸ” 1    πŸ’¬ 2    πŸ“Œ 0
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Tropical root responses to global changes: A synthesis Responses of roots can reveal the strategies and vulnerabilities of tropical ecosystems facing present and future global changes. This analysis of 266 root trait observations from 93 studies across 2...

Are you interested in Root responses to climate change? Read our latest synthesis article about tropical root responses to global changes led by Daniella Yaffar and Laynara Lugli @laylugli.bsky.social on Global Change Biology. #fineroots #tropicalroots onlinelibrary.wiley.com/doi/10.1111/...

28.11.2024 17:32 β€” πŸ‘ 34    πŸ” 14    πŸ’¬ 0    πŸ“Œ 0
The Alignment Problem | Brian Christian

I’m liking The Alignment Problem so far…

brianchristian.org/the-alignmen...

01.12.2024 01:47 β€” πŸ‘ 3    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
A complex mathematical visualization showing a black square rotated 45 degrees, with symmetrical, flowing colored curves emanating from each corner. The curves create an elegant abstract pattern resembling a four-petaled flower or cross. Each corner features intricate swirling patterns in multiple colors including red, blue, and yellow lines that interweave and curl inward. The equation for this parametric visualization is shown at the top of the image. The artwork is displayed on a black background, creating strong contrast with the colored curves. The overall effect is both mathematically precise and artistically beautiful, demonstrating the intersection of mathematics and visual art.

A complex mathematical visualization showing a black square rotated 45 degrees, with symmetrical, flowing colored curves emanating from each corner. The curves create an elegant abstract pattern resembling a four-petaled flower or cross. Each corner features intricate swirling patterns in multiple colors including red, blue, and yellow lines that interweave and curl inward. The equation for this parametric visualization is shown at the top of the image. The artwork is displayed on a black background, creating strong contrast with the colored curves. The overall effect is both mathematically precise and artistically beautiful, demonstrating the intersection of mathematics and visual art.

Roots of parametric polynomials.
Made with #python, #matplotlib, #numpy and #sympy.

28.11.2024 21:57 β€” πŸ‘ 104    πŸ” 11    πŸ’¬ 3    πŸ“Œ 2
Hexagonal Truchet pattern 1

Hexagonal Truchet pattern 1

Hexagonal Truchet pattern 2

Hexagonal Truchet pattern 2

Hexagonal Truchet pattern 3

Hexagonal Truchet pattern 3

Hexagonal Truchet pattern 4

Hexagonal Truchet pattern 4

I'm thankful for the #MathSky community developing here! Here are some random Catalan-Truchet-Tantrix-inspired patterns as a token of appreciation.

28.11.2024 17:57 β€” πŸ‘ 47    πŸ” 5    πŸ’¬ 4    πŸ“Œ 0

@currying is following 20 prominent accounts