Álvaro Lozano-Robledo
@mathandcobb.bsky.social
Professor of Mathematics, number theorist (arithmetic geometry), author, Hagoromo chalk ambassador, bonsai amateur.
Views expressed are my own.
Views expressed are my own.
Pinned
I am on a mission to publish/post as much math as I can, aimed at a variety of mathematical levels and backgrounds. Here "math" is broadly construed: actual mathematics, meta mathematics, advice about academia, etc. To that end, let me write a thread here about the many ways I share math:
Reposted by Álvaro Lozano-Robledo
back in my 2^n - 2*n era
for the first time since n=10
for the first time since n=10
December 21, 2025 at 2:24 AM
back in my 2^n - 2*n era
for the first time since n=10
for the first time since n=10
2026 = 2^11 -2*11
December 26, 2025 at 7:33 PM
2026 = 2^11 -2*11
Reposted by Álvaro Lozano-Robledo
This is the @mathandcobb.bsky.social way and I admire him for it. I even made a TikTok account to follow him there. I wish I was even one tenth as good as he is at making videos (or even one tenth as good at writing posts as he is at making videos, honestly that would already be cool).
i have said this before but if you are actually interested in influencing people beyond a narrow circle of too-online journalists you will be making direct to camera videos on tiktok, instagram and youtube. if you primarily post on text-based social media then you're just dicking around.
December 15, 2025 at 10:52 PM
This is the @mathandcobb.bsky.social way and I admire him for it. I even made a TikTok account to follow him there. I wish I was even one tenth as good as he is at making videos (or even one tenth as good at writing posts as he is at making videos, honestly that would already be cool).
Reposted by Álvaro Lozano-Robledo
Mathematicians discount the power of social media tech to communicate our work at our own peril. 😮 Looking forward to seeing @mathandcobb.bsky.social share about Math in the Age of Social Media this Monday at 3pm Eastern!
Join the conversation on our Zulip! code4math.zulipchat.com#narrow/chann...
Join the conversation on our Zulip! code4math.zulipchat.com#narrow/chann...
November 8, 2025 at 10:25 PM
Mathematicians discount the power of social media tech to communicate our work at our own peril. 😮 Looking forward to seeing @mathandcobb.bsky.social share about Math in the Age of Social Media this Monday at 3pm Eastern!
Join the conversation on our Zulip! code4math.zulipchat.com#narrow/chann...
Join the conversation on our Zulip! code4math.zulipchat.com#narrow/chann...
Reposted by Álvaro Lozano-Robledo
Tell your friends! Warn your enemies! @mathandcobb.bsky.social will be sharing his take on Math in the Age of Social Media on Monday at the next @code4math.org Convening! Join the conversation on our Zulip:
code4math.zulipchat.com#narrow/chann...
code4math.zulipchat.com#narrow/chann...
November 6, 2025 at 4:57 PM
Tell your friends! Warn your enemies! @mathandcobb.bsky.social will be sharing his take on Math in the Age of Social Media on Monday at the next @code4math.org Convening! Join the conversation on our Zulip:
code4math.zulipchat.com#narrow/chann...
code4math.zulipchat.com#narrow/chann...
Hashtag proud dad things
October 24, 2025 at 11:51 AM
Hashtag proud dad things
Reposted by Álvaro Lozano-Robledo
Save the date! @mathandcobb.bsky.social will share with our community his take on "Math in the Age of Social Media" during our November 2025 Zoom convening held on November 10 at 3pm Eastern:
scholarlattice.org/events/b332b...
scholarlattice.org/events/b332b...
October 21, 2025 at 1:27 PM
Save the date! @mathandcobb.bsky.social will share with our community his take on "Math in the Age of Social Media" during our November 2025 Zoom convening held on November 10 at 3pm Eastern:
scholarlattice.org/events/b332b...
scholarlattice.org/events/b332b...
It cracks me up that if I go to my Google authenticator app, I have codes for TikTok, Fortnite, and NSF, among others.
October 10, 2025 at 3:26 PM
It cracks me up that if I go to my Google authenticator app, I have codes for TikTok, Fortnite, and NSF, among others.
Reposted by Álvaro Lozano-Robledo
Hey @mathandcobb.bsky.social, can you ask the Hagoromo people if they'll make me an official Brand Representative if I tattoo a piece of Hagoromo on my forearm?
September 28, 2025 at 4:44 PM
Hey @mathandcobb.bsky.social, can you ask the Hagoromo people if they'll make me an official Brand Representative if I tattoo a piece of Hagoromo on my forearm?
So let me try to get a bit of a silver lining out of this mess... Do we all now agree we need more science and scientific studies?
September 25, 2025 at 12:46 PM
So let me try to get a bit of a silver lining out of this mess... Do we all now agree we need more science and scientific studies?
In this video I describe all the functions that are equal to their own n-th derivative, and also define the infinite family of "spiral trigonometric functions", which include the usual exponential, sine, and cosine functions as special cases #math #differentialequation #trigonometry #spiral
September 25, 2025 at 11:56 AM
In this video I describe all the functions that are equal to their own n-th derivative, and also define the infinite family of "spiral trigonometric functions", which include the usual exponential, sine, and cosine functions as special cases #math #differentialequation #trigonometry #spiral
September 24, 2025 at 5:35 PM
Reposted by Álvaro Lozano-Robledo
The “spiral trigonometric” functions, named coss(x) and sins(x) by @mathandcobb.bsky.social. These are solutions to the third-order differential equation y'''=y.
September 24, 2025 at 4:59 PM
The “spiral trigonometric” functions, named coss(x) and sins(x) by @mathandcobb.bsky.social. These are solutions to the third-order differential equation y'''=y.
Happy Pythagorean Theorem Day! 9+16=25, or 3^2+4^2=5^2. This is the unique date every century with this property! 🤩
youtu.be/cApa8UKUls8
youtu.be/cApa8UKUls8
🚨 Cool Math Date Alert! 🚨 (9/16/25)
YouTube video by Alvaro Lozano-Robledo
youtu.be
September 16, 2025 at 3:44 PM
Happy Pythagorean Theorem Day! 9+16=25, or 3^2+4^2=5^2. This is the unique date every century with this property! 🤩
youtu.be/cApa8UKUls8
youtu.be/cApa8UKUls8
I called it!
Give ALL the awards to the kid from "Adolescence" already.
September 15, 2025 at 10:15 AM
I called it!
Reposted by Álvaro Lozano-Robledo
ok well everything sucks but I made minor contributions to a really cool paper that we just put up on the arxiv
Hypergeometric decomposition of Delsarte K3 pencils
We study five pencils of projective quartic Delsarte K3 surfaces. Over finite fields, we give explicit formulas for the point counts of each family, written in terms of hypergeometric sums. Over the c...
arxiv.org
August 22, 2025 at 2:35 PM
ok well everything sucks but I made minor contributions to a really cool paper that we just put up on the arxiv
The University of Arkansas is hosting a lecture series by Bjorn Poonen on "Undecidability related to arithmetic geometry" and they have some NSF funding to assist with travel! Please share widely.
math.uark.edu/research/spr...
math.uark.edu/research/spr...
Spring Lecture Series
math.uark.edu
August 22, 2025 at 4:29 PM
The University of Arkansas is hosting a lecture series by Bjorn Poonen on "Undecidability related to arithmetic geometry" and they have some NSF funding to assist with travel! Please share widely.
math.uark.edu/research/spr...
math.uark.edu/research/spr...
REAL ANALYSIS IS A *SCAM* (not really, but hear me out)
(I made this video specifically for @rhymeswithspecimen.bsky.social 's amusement).
youtu.be/43uBS5BJ4Gg?...
(I made this video specifically for @rhymeswithspecimen.bsky.social 's amusement).
youtu.be/43uBS5BJ4Gg?...
August 15, 2025 at 12:23 PM
REAL ANALYSIS IS A *SCAM* (not really, but hear me out)
(I made this video specifically for @rhymeswithspecimen.bsky.social 's amusement).
youtu.be/43uBS5BJ4Gg?...
(I made this video specifically for @rhymeswithspecimen.bsky.social 's amusement).
youtu.be/43uBS5BJ4Gg?...
Is Terry Tao the "greatest mathematician alive"? What does "greatest" even mean?
youtube.com/shorts/0X0wM...
youtube.com/shorts/0X0wM...
Is Terry Tao the "greatest mathematician alive"? #math #mathhistory #terrytao #jpserre #fieldsmedal
YouTube video by Alvaro Lozano-Robledo
youtube.com
August 13, 2025 at 8:22 PM
Is Terry Tao the "greatest mathematician alive"? What does "greatest" even mean?
youtube.com/shorts/0X0wM...
youtube.com/shorts/0X0wM...
Reposted by Álvaro Lozano-Robledo
We have just published the 2025 edition of the Team-Based Inquiry Learning (TBIL) Resource Library. This includes activity books and exercise banks for Precalculus (new!), Calculus (1 & 2), and Linear Algebra.
tbil.org/library/
tbil.org/library/
Team-Based Inquiry Learning - TBIL Resource Library
Open Resources and Research supporting Active Learning in Mathematics
tbil.org
August 4, 2025 at 5:53 PM
We have just published the 2025 edition of the Team-Based Inquiry Learning (TBIL) Resource Library. This includes activity books and exercise banks for Precalculus (new!), Calculus (1 & 2), and Linear Algebra.
tbil.org/library/
tbil.org/library/
A sketch of the graph of a hyperbolic paraboloid 🤩 (z = x^2 - y^2)
August 3, 2025 at 12:20 AM
A sketch of the graph of a hyperbolic paraboloid 🤩 (z = x^2 - y^2)
Reposted by Álvaro Lozano-Robledo
It has been the honor of my life to serve as Commissioner of BLS alongside the many dedicated civil servants tasked with measuring a vast and dynamic economy. It is vital and important work and I thank them for their service to this nation.
August 2, 2025 at 2:18 AM
It has been the honor of my life to serve as Commissioner of BLS alongside the many dedicated civil servants tasked with measuring a vast and dynamic economy. It is vital and important work and I thank them for their service to this nation.
Reposted by Álvaro Lozano-Robledo
I am advertising for 4 post-docs to come to Imperial and formalize, in Lean, *statements* of theorems from recent issues of the top generalist pure mathematics journals.
www.imperial.ac.uk/jobs/search-...
Positions are for 2 years, start date 1st Oct this year. Deadline 15th August.
www.imperial.ac.uk/jobs/search-...
Positions are for 2 years, start date 1st Oct this year. Deadline 15th August.
Description
Please note that job descriptions are not exhaustive, and you may be asked to take on additional duties that align with the key responsibilities ment...
www.imperial.ac.uk
July 28, 2025 at 12:10 PM
I am advertising for 4 post-docs to come to Imperial and formalize, in Lean, *statements* of theorems from recent issues of the top generalist pure mathematics journals.
www.imperial.ac.uk/jobs/search-...
Positions are for 2 years, start date 1st Oct this year. Deadline 15th August.
www.imperial.ac.uk/jobs/search-...
Positions are for 2 years, start date 1st Oct this year. Deadline 15th August.
Who's the better mathematician? Euler or Gauss? Only Kaia can decide:
www.facebook.com/share/r/15fK...
www.facebook.com/share/r/15fK...
Redirecting...
www.facebook.com
July 28, 2025 at 5:14 PM
Who's the better mathematician? Euler or Gauss? Only Kaia can decide:
www.facebook.com/share/r/15fK...
www.facebook.com/share/r/15fK...