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littmath

littmath

Mastodon @littmath@mathstodon.xyz
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Followers
1.8K
Account age
4 yrs
🧰 Free analysis for littmath
🕵️ Fake follower check 📊 Engagement rate 💰 What they charge

Known for

New project: problemsilike.com, a website collecting open problems that I, personally, like, with comments on their context, difficulty, and interest. The goal is to track progress on mathematical questions that I think are important, and to measure human understanding of these questions, as well as the usefulness of AI tools in helping to resolve them. It is also a step for me towards thinking a54 views New project: problemsilike.com, a website collecting open problems that I, personally, like, with comments on their context, difficulty, and interest. The goal is to track progress on mathematical questions that I think are important, and to measure human understanding of these questions, as well as the usefulness of AI tools in helping to resolve them. It is also a step for me towards thinking a New paper just dropped, joint with Thomas Krämer and Marco Maculan. It's about a (somewhat mysterious, to me) connection between cubic threefolds and the exceptional Lie group E_6. arxiv.org/abs/2604.2097017 views New paper just dropped, joint with Thomas Krämer and Marco Maculan. It's about a (somewhat mysterious, to me) connection between cubic threefolds and the exceptional Lie group E_6. arxiv.org/abs/2604.20970 One of the crown jewels of 19th century mathematics is the classification (by Killing and Cartan) of compact Lie groups--groups that are also compact manifolds. Dynkin later interpreted this classification in terms of the finite graphs below. Loosely speaking, every compact Lie group is built out of simple pieces: the circle group, the (infinite families of) special unitary groups, special orthog6 views One of the crown jewels of 19th century mathematics is the classification (by Killing and Cartan) of compact Lie groups--groups that are also compact manifolds. Dynkin later interpreted this classification in terms of the finite graphs below. Loosely speaking, every compact Lie group is built out of simple pieces: the circle group, the (infinite families of) special unitary groups, special orthog I'll finish with a little mystery. The starting point for this work was the classical connection between E_6 and cubic surfaces. There are also surfaces famously connected to E_7 and E_8: del Pezzo surfaces of degree 2 and 1. So it is natural to look for threefolds generalizing the story here, i.e. where one can find E_7 or E_8 local systems/motives in the cohomology of some natural auxiliary con5 views I'll finish with a little mystery. The starting point for this work was the classical connection between E_6 and cubic surfaces. There are also surfaces famously connected to E_7 and E_8: del Pezzo surfaces of degree 2 and 1. So it is natural to look for threefolds generalizing the story here, i.e. where one can find E_7 or E_8 local systems/motives in the cohomology of some natural auxiliary con

📊 Post engagement

10
Avg engagement / post
0.6%
Engagement vs followers
Apr 2022
On Mastodon since

🔥 Top post: New project: problemsilike.com, a website collecting open proble · 54 likes + reposts

📊 Activity & format

Posting cadence
2.4 / week
Posts several times a week.
Content mix
Mostly images
Recent: 4 text · 7 image · 1 video.
Follower / following
13×
Follows 141 back. A strong ratio — an audience that follows them, not a follow-for-follow network.

Recent posts

View on Mastodon ↗
🔥 Top post New project: problemsilike.com, a website collecting open problems that I, personally, like, with comments on their context, difficulty, and interest. The goal is to track progress on mathematical questions that I think are important, and to measure human understanding of these … ★ 54
Just added a 15th problem to https://www.problemsilike.com! This one is a "non-abelian" analogue of the variational Hodge or Tate conjectures. ★ 3 Link here: https://www.problemsilike.com ★ 2 I think this last is especially important: I’m committing in advance to a position on the interest of these problems, to prevent goalpost-moving. And I’m trying to say something about their difficulty, to help non-experts understand what i… ★ 8 I'll finish with a little mystery. The starting point for this work was the classical connection between E_6 and cubic surfaces. There are also surfaces famously connected to E_7 and E_8: del Pezzo surfaces of degree 2 and 1. So it is nat… ★ 5 Assuming the Hodge or Tate conjecture, the geometry of any variety is controlled by some group: its motivic Galois group. Serre's question is to, given a group, find a variety with that as its Galois group. It's a fancy version of the inve… ★ 5 One pleasant consequence is that it gives a new (and in my view, particularly beautiful) answer to a question of Serre, originally answered by Boxer, Calegari, Emerton, Levin, Madapusi Pera, and Patrikis. Namely, Serre asked if there exis… ★ 4 The main result of this paper is that the geometry of covers of this surface is controlled by the 27-dimensional representation of the group E_6. The proof involves a lot of the beautiful, classical geometry of cubic threefolds. For the e… ★ 3 ▶ The lines on a cubic threefold are parametrized by a (complex) surface, whose real points are pictured below in the case where the cubic threefold is cut out by the equation x_0^3+x_1^3+x_2^3+x_3^3+x_4^3=0. You can play with it yourself h… ★ 5 It has long been known that there is some connection between cubic *surfaces* and E_6: loosely speaking, the combinatorics of the 27 lines on a cubic surface are controlled by the Dynkin diagram for E_6. The point of this paper is to expla… ★ 3 One of the crown jewels of 19th century mathematics is the classification (by Killing and Cartan) of compact Lie groups--groups that are also compact manifolds. Dynkin later interpreted this classification in terms of the finite graphs bel… ★ 6 New paper just dropped, joint with Thomas Krämer and Marco Maculan. It's about a (somewhat mysterious, to me) connection between cubic threefolds and the exceptional Lie group E_6. arxiv.org/abs/2604.20970 ★ 17

🐘 Community & instance

Home server
mathstodon.xyz
Their home server on the fediverse — the instance a creator picks signals the community they belong to.
On Mastodon since
Apr 2022
An established account with real history on the platform.

💡 Facts

🗓️Joined Mastodon in 2022 — 4 years ago.
👁️Averages 10 views per post.
📤Posts about 2.4× per week.

🕵️ Fake follower check

Estimated
66/100
Good Credibility score
89%
Real Real audience
Low Fake-follower risk
High Data confidence
  • Est. 89% real, active audience · Low fake-follower risk.
  • Engagement (~0.6% of followers engage each post) is around typical for Mastodon.
  • Established account (4+ years old).

Heuristic estimate from engagement, follower ratios, account age & growth — a screening signal, not a guarantee.

About

Assistant professor at University of Toronto. Mathematics, algebraic geometry, number theory, eternally confused. He/him

📸 Gallery

Just added a 15th problem to https://www.problemsilike.com! This one is a "non-abelian" analogue of the variational Hodge or Tate conjectures. New project: problemsilike.com, a website collecting open problems that I, personally, like, with comments on their context, difficulty, and interest. The goal is to track progress on mathematical questions that I think are important, and to measure human understanding of these questions, as well as the usefulness of AI tools in helping to resolve them. It is also a step for me towards thinking a I'll finish with a little mystery. The starting point for this work was the classical connection between E_6 and cubic surfaces. There are also surfaces famously connected to E_7 and E_8: del Pezzo surfaces of degree 2 and 1. So it is natural to look for threefolds generalizing the story here, i.e. where one can find E_7 or E_8 local systems/motives in the cohomology of some natural auxiliary con One pleasant consequence is that it gives a new (and in my view, particularly beautiful) answer to a question of Serre, originally answered by Boxer, Calegari, Emerton, Levin, Madapusi Pera, and Patrikis. Namely, Serre asked if there exist motives with exceptional Galois group; he qualified this question as "hasardeuse." (Serre asked specifically about G_2 and E_8, but later authors have generall The lines on a cubic threefold are parametrized by a (complex) surface, whose real points are pictured below in the case where the cubic threefold is cut out by the equation x_0^3+x_1^3+x_2^3+x_3^3+x_4^3=0. You can play with it yourself here: https://chocolitt.github.io/fermat_fano_real_mesh_web.html It has long been known that there is some connection between cubic *surfaces* and E_6: loosely speaking, the combinatorics of the 27 lines on a cubic surface are controlled by the Dynkin diagram for E_6. The point of this paper is to explain that there also seems to be a connection between cubic *threefolds* and E_6. One of the crown jewels of 19th century mathematics is the classification (by Killing and Cartan) of compact Lie groups--groups that are also compact manifolds. Dynkin later interpreted this classification in terms of the finite graphs below. Loosely speaking, every compact Lie group is built out of simple pieces: the circle group, the (infinite families of) special unitary groups, special orthog New paper just dropped, joint with Thomas Krämer and Marco Maculan. It's about a (somewhat mysterious, to me) connection between cubic threefolds and the exceptional Lie group E_6. arxiv.org/abs/2604.20970

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