Johanna Franklin
@johannamath.bsky.social
Math prof at Hofstra. Logician, fan of the laws of probability & randomness, & mathematical crafter. All opinions my own. She/her/hers.
Hi #MathSky, I know an Iowa State master's student who needs us! She's exploring how university researchers are/were using Bluesky and Twitter/X.
Her survey only takes 5-10 minutes with an optional follow-up interview. Please share!
uiowa.qualtrics.com/jfe/form/SV_...
Her survey only takes 5-10 minutes with an optional follow-up interview. Please share!
uiowa.qualtrics.com/jfe/form/SV_...
Qualtrics Survey | Qualtrics Experience Management
The most powerful, simple and trusted way to gather experience data. Start your journey to experience management and try a free account today.
uiowa.qualtrics.com
November 10, 2025 at 2:47 PM
Hi #MathSky, I know an Iowa State master's student who needs us! She's exploring how university researchers are/were using Bluesky and Twitter/X.
Her survey only takes 5-10 minutes with an optional follow-up interview. Please share!
uiowa.qualtrics.com/jfe/form/SV_...
Her survey only takes 5-10 minutes with an optional follow-up interview. Please share!
uiowa.qualtrics.com/jfe/form/SV_...
Reposted by Johanna Franklin
We are excited to announce the next talk in the seminar series "Women in Logic Online" by @elainepimentel.bsky.social!
TITLE: Classical Versus Constructive: An Ecumenical Approach
Date: Wed, November 26, 2025, 17:00 CEST
Venue: Zoom
You can register for free at tuwien.zoom.us/webinar/regi....
TITLE: Classical Versus Constructive: An Ecumenical Approach
Date: Wed, November 26, 2025, 17:00 CEST
Venue: Zoom
You can register for free at tuwien.zoom.us/webinar/regi....
Welcome! You are invited to join a webinar: Women in Logic Online with Elaine Pimentel. After registering, you will receive a confirmation email about joining the webinar.
Classical versus Constructive: An Ecumenical Approach
tuwien.zoom.us
November 10, 2025 at 10:45 AM
We are excited to announce the next talk in the seminar series "Women in Logic Online" by @elainepimentel.bsky.social!
TITLE: Classical Versus Constructive: An Ecumenical Approach
Date: Wed, November 26, 2025, 17:00 CEST
Venue: Zoom
You can register for free at tuwien.zoom.us/webinar/regi....
TITLE: Classical Versus Constructive: An Ecumenical Approach
Date: Wed, November 26, 2025, 17:00 CEST
Venue: Zoom
You can register for free at tuwien.zoom.us/webinar/regi....
Look what's got its own page on the Springer Monographs in Mathematics series website! #MathSky
link.springer.com/book/9783032...
link.springer.com/book/9783032...
Effective Metric Structure Theory
Book discusses the increasingly popular topic of computable metric structure theory which unifies methods from effective analysis and computable algebra.
link.springer.com
November 8, 2025 at 4:01 PM
Look what's got its own page on the Springer Monographs in Mathematics series website! #MathSky
link.springer.com/book/9783032...
link.springer.com/book/9783032...
Reposted by Johanna Franklin
Here is the Ravelry link for my free #AbolishICE beanie. Extensive notes cover all aspects of #knitting and refer to video tutorials; versions in cotton/wool fingering/sport. I appreciate any favorites there/here to boost the pattern! #knitsky #AbolishICE #NoKings 🧶
www.ravelry.com/patterns/lib...
www.ravelry.com/patterns/lib...
Abolish ICE Beanie pattern by Daniel Drennan ElAwar
My patterns are free. If you like my patterns and wish to further support my work, please visit my ko-fi: https://ko-fi.com/ddelawar
www.ravelry.com
October 20, 2025 at 4:34 PM
Here is the Ravelry link for my free #AbolishICE beanie. Extensive notes cover all aspects of #knitting and refer to video tutorials; versions in cotton/wool fingering/sport. I appreciate any favorites there/here to boost the pattern! #knitsky #AbolishICE #NoKings 🧶
www.ravelry.com/patterns/lib...
www.ravelry.com/patterns/lib...
Reposted by Johanna Franklin
Hello, NYC, I am in you!
I will be at Knitty City tomorrow, Saturday the 8th, from 12-6pm. I’m so delighted to be doing a trunk show!!
#KSQShop
Knitty City is one of my favorite yarn stores anywhere—an amazing variety of yarns 🧶, and a helpful and knowledgeable staff!
I will be at Knitty City tomorrow, Saturday the 8th, from 12-6pm. I’m so delighted to be doing a trunk show!!
#KSQShop
Knitty City is one of my favorite yarn stores anywhere—an amazing variety of yarns 🧶, and a helpful and knowledgeable staff!
November 7, 2025 at 8:18 PM
Hello, NYC, I am in you!
I will be at Knitty City tomorrow, Saturday the 8th, from 12-6pm. I’m so delighted to be doing a trunk show!!
#KSQShop
Knitty City is one of my favorite yarn stores anywhere—an amazing variety of yarns 🧶, and a helpful and knowledgeable staff!
I will be at Knitty City tomorrow, Saturday the 8th, from 12-6pm. I’m so delighted to be doing a trunk show!!
#KSQShop
Knitty City is one of my favorite yarn stores anywhere—an amazing variety of yarns 🧶, and a helpful and knowledgeable staff!
Reposted by Johanna Franklin
Rosalind Franklin was born #OTD in 1920. Her X-ray diffraction work was critical for establishing the helical nature of DNA. 👩🔬 🧪
Work carried out by Franklin (with doctoral student Raymond Gosling) was given to Watson and Crick without her consent.
Image: Vittorio Luzzati / Jewish Women’s Archive
Work carried out by Franklin (with doctoral student Raymond Gosling) was given to Watson and Crick without her consent.
Image: Vittorio Luzzati / Jewish Women’s Archive
July 25, 2024 at 2:13 PM
Rosalind Franklin was born #OTD in 1920. Her X-ray diffraction work was critical for establishing the helical nature of DNA. 👩🔬 🧪
Work carried out by Franklin (with doctoral student Raymond Gosling) was given to Watson and Crick without her consent.
Image: Vittorio Luzzati / Jewish Women’s Archive
Work carried out by Franklin (with doctoral student Raymond Gosling) was given to Watson and Crick without her consent.
Image: Vittorio Luzzati / Jewish Women’s Archive
Reposted by Johanna Franklin
Jason Block, Russell Miller
Computability for tree presentations of continuum-size structures
https://arxiv.org/abs/2511.04152
Computability for tree presentations of continuum-size structures
https://arxiv.org/abs/2511.04152
November 7, 2025 at 6:30 AM
Jason Block, Russell Miller
Computability for tree presentations of continuum-size structures
https://arxiv.org/abs/2511.04152
Computability for tree presentations of continuum-size structures
https://arxiv.org/abs/2511.04152
Happy My Car Clock Is Right Again Day to all who celebrate! 🚗 🕙
November 2, 2025 at 2:59 PM
Happy My Car Clock Is Right Again Day to all who celebrate! 🚗 🕙
Hey, #MathSky! We are already accepting essays for the AWM/MfA Essay Contest, so help the students you know participate!
November 1, 2025 at 6:06 PM
Hey, #MathSky! We are already accepting essays for the AWM/MfA Essay Contest, so help the students you know participate!
Reposted by Johanna Franklin
People three hops away in your social network are people you don't know
- Your friends' friends' parents
- Your partner's parents' friends
- Your boss's kid's teachers
- Your friend's doctor's parents
- Your ex's partner's colleague
List goes on and on for why this is terrible criteria
- Your friends' friends' parents
- Your partner's parents' friends
- Your boss's kid's teachers
- Your friend's doctor's parents
- Your ex's partner's colleague
List goes on and on for why this is terrible criteria
This three-hops theory is especially insane. Even if you assume each person is connected to only 100 other people, there are 1m people within three hops of every suspected drug trafficker—and remember that even *known* drug traffickers aren’t legitimate targets. www.nytimes.com/2025/10/30/u...
October 31, 2025 at 12:24 PM
People three hops away in your social network are people you don't know
- Your friends' friends' parents
- Your partner's parents' friends
- Your boss's kid's teachers
- Your friend's doctor's parents
- Your ex's partner's colleague
List goes on and on for why this is terrible criteria
- Your friends' friends' parents
- Your partner's parents' friends
- Your boss's kid's teachers
- Your friend's doctor's parents
- Your ex's partner's colleague
List goes on and on for why this is terrible criteria
A paper on Martin Davis's work has just been published in "Philosophia Mathematica":
Martin Davis: An Overview of his Work in Logic, Computer Science, and Philosophy
By L De Mol, Y V Matiyasevich, E G Omodeo, A Policriti, W Sieg and E J Weyuker.
doi.org/10.1093/phil...
Martin Davis: An Overview of his Work in Logic, Computer Science, and Philosophy
By L De Mol, Y V Matiyasevich, E G Omodeo, A Policriti, W Sieg and E J Weyuker.
doi.org/10.1093/phil...
Martin Davis: An Overview of his Work in Logic, Computer Science, and Philosophy
Abstract. In his autobiographical essay written in 1999, ‘From logic to computer science and back’, Martin David Davis (1928 3 8–2023 1 1) indicated that h
doi.org
October 29, 2025 at 11:34 PM
Got all my Vote Forward letters for Prop 50 in CA sent out! @votefwd.bsky.social
October 28, 2025 at 5:30 PM
Got all my Vote Forward letters for Prop 50 in CA sent out! @votefwd.bsky.social
Working on the TRIUMPHS project on Abel and Cauchy's approaches to infinite series with my real analysis honors student. We have decided that Abel is totally a hater. #MathSky
digitalcommons.ursinus.edu/triumphs_ana...
digitalcommons.ursinus.edu/triumphs_ana...
Abel and Cauchy on a Rigorous Approach to Infinite Series
By Dave Ruch, Published on 01/01/17
digitalcommons.ursinus.edu
October 21, 2025 at 8:20 PM
Working on the TRIUMPHS project on Abel and Cauchy's approaches to infinite series with my real analysis honors student. We have decided that Abel is totally a hater. #MathSky
digitalcommons.ursinus.edu/triumphs_ana...
digitalcommons.ursinus.edu/triumphs_ana...
I just found out that my undergrad advisor endowed a fund at my alma mater so the Activities Board can hold a petting zoo for the students every year. 😍
www.cmu.edu/mcs/news-eve...
www.cmu.edu/mcs/news-eve...
Animal Encounters Ease Exam Anxiety
Carnegie Mellon University Emeritus Professor Russell Walker endowed a fund to the university for a yearly petting zoo.
www.cmu.edu
October 16, 2025 at 12:40 AM
I just found out that my undergrad advisor endowed a fund at my alma mater so the Activities Board can hold a petting zoo for the students every year. 😍
www.cmu.edu/mcs/news-eve...
www.cmu.edu/mcs/news-eve...
Back up at UConn today for NERDS and a trip to the Dairy Bar!
October 5, 2025 at 10:41 PM
Back up at UConn today for NERDS and a trip to the Dairy Bar!
Reposted by Johanna Franklin
Submissions are now being accepted for the Exhibition of Mathematical Art to be held as part of the Joint Mathematics Meetings, Washington, DC, in January of 2026. Apply online through October 15 at gallery.bridgesmathart.org. pic.x.com/MGSEyexSzo
September 25, 2025 at 8:35 PM
Submissions are now being accepted for the Exhibition of Mathematical Art to be held as part of the Joint Mathematics Meetings, Washington, DC, in January of 2026. Apply online through October 15 at gallery.bridgesmathart.org. pic.x.com/MGSEyexSzo
JOB ALERT
The math dept. at Universidad de los Andes (Colombia) is looking to hire 2 new TT profs. Researchers in areas of geometry & topology or stats & data science given priority.
Apply by Nov. 30
www.mathjobs.org/jobs/list/26...
www.mathjobs.org/jobs/list/26...
www.mathjobs.org/jobs/list/26...
The math dept. at Universidad de los Andes (Colombia) is looking to hire 2 new TT profs. Researchers in areas of geometry & topology or stats & data science given priority.
Apply by Nov. 30
www.mathjobs.org/jobs/list/26...
www.mathjobs.org/jobs/list/26...
www.mathjobs.org/jobs/list/26...
MathJobs from the the American Mathematical Society
Mathjobs is an automated job application system sponsored by the AMS.
www.mathjobs.org
September 25, 2025 at 2:40 PM
Reposted by Johanna Franklin
Cambridge University is recruiting for a new faculty position in the area of Algorithms and Complexity:
www.cam.ac.uk/jobs/univers...
www.cam.ac.uk/jobs/univers...
University Assistant/Associate Professor in Algorithms and Complexity
The Department of Computer Science and Technology is seeking to recruit a new faculty member at the Assistant Professor/Associate Professor level who will contribute to research and teaching in
www.cam.ac.uk
September 24, 2025 at 8:07 AM
Cambridge University is recruiting for a new faculty position in the area of Algorithms and Complexity:
www.cam.ac.uk/jobs/univers...
www.cam.ac.uk/jobs/univers...
Reposted by Johanna Franklin
I am very disappointed to see that @joeldavidhamkins.bsky.social has signed on to this amicus brief, which argues that trans women should not be allowed to play in women’s sports. (1/6)
dailynous.com/wp-content/u...
dailynous.com/wp-content/u...
dailynous.com
September 24, 2025 at 1:49 AM
I am very disappointed to see that @joeldavidhamkins.bsky.social has signed on to this amicus brief, which argues that trans women should not be allowed to play in women’s sports. (1/6)
dailynous.com/wp-content/u...
dailynous.com/wp-content/u...
Achtung, Nerd-Content. Auf einer Glastür im Department Mathematik der Uni Erlangen steht diese 2x2-Determinante mit römischen Ziffern: X·I–II·IV=II. Wenn man die Tür von der anderen Seite sieht, stimmt die Gleichung auch: II=VI·II–X·I. Es ist ein Spiegel-Ambigramm.
September 21, 2025 at 9:39 PM