HTTP/2 301
server: nginx
date: Tue, 30 Dec 2025 11:59:27 GMT
content-type: application/rss+xml; charset=UTF-8
location: https://igorpak.wordpress.com/comments/feed/
x-hacker: Want root? Visit join.a8c.com/hacker and mention this header.
host-header: WordPress.com
vary: accept, content-type, cookie
last-modified: Tue, 30 Dec 2025 11:59:27 GMT
etag: "b9a237d278e0aedd78ae5256836bee5e"
x-redirect-by: WordPress
x-ac: 2.bom _dca MISS
alt-svc: h3=":443"; ma=86400
strict-transport-security: max-age=31536000
server-timing: a8c-cdn, dc;desc=bom, cache;desc=MISS;dur=334.0
HTTP/2 200
server: nginx
date: Tue, 30 Dec 2025 11:59:27 GMT
content-type: application/rss+xml; charset=UTF-8
vary: Accept-Encoding
x-hacker: Want root? Visit join.a8c.com/hacker and mention this header.
host-header: WordPress.com
vary: accept, content-type, cookie
last-modified: Tue, 30 Dec 2025 11:59:27 GMT
etag: W/"b9a237d278e0aedd78ae5256836bee5e"
content-encoding: gzip
x-ac: 1.bom _dca MISS
alt-svc: h3=":443"; ma=86400
strict-transport-security: max-age=31536000
server-timing: a8c-cdn, dc;desc=bom, cache;desc=MISS;dur=374.0
Comments for Igor Pak's blog
https://igorpak.wordpress.com
Views on life and mathSun, 07 Dec 2025 20:39:45 +0000
hourly
1 https://wordpress.com/
Comment on Princeton President to Princeton Jews: For the sake of free speech please shut up! by ryeguy10
https://igorpak.wordpress.com/2024/10/19/princeton-president-to-princeton-jews-for-the-sake-of-free-speech-please-shut-up/#comment-2371
Sun, 07 Dec 2025 20:39:45 +0000https://igorpak.wordpress.com/?p=3297#comment-2371Right, if someone got up and said that Ashkenazi Jews have higher average levels of intelligence than other groups at least partly because of genetics, and that similarly Palestinian Arabs and African-Americans have lower levels of intelligence on average at least partly because of genetics, you have to wonder how Eisgruber would react. Would he respond by talking about the values of free speech, the same way he responds to calls for the destruction of Israel and calls for violence against Jews?
]]>
Comment on We deserve better journals by The Prestige Treadmill: How Major Results Appear Outside Top Journals (and Why They Often Get Snubbed) – Henry Shin
https://igorpak.wordpress.com/2024/05/11/we-deserve-better-journals/#comment-2325
Sun, 13 Apr 2025 01:49:30 +0000https://igorpak.wordpress.com/?p=3098#comment-2325[…] Pak, I. “We deserve better journals.” (May 11, 2024)https://igorpak.wordpress.com/2024/05/11/we-deserve-better-journals […]
]]>
Comment on Innovation anxiety by The Prestige Treadmill: How Major Results Appear Outside Top Journals (and Why They Often Get Snubbed) – Henry Shin
https://igorpak.wordpress.com/2022/12/28/innovation-anxiety/#comment-2324
Sun, 13 Apr 2025 01:49:27 +0000https://igorpak.wordpress.com/?p=2707#comment-2324[…] Pak, I. “Innovation anxiety.” (December 28, 2022)https://igorpak.wordpress.com/2022/12/28/innovation-anxiety […]
]]>
Comment on The journal hall of shame by The Prestige Treadmill: How Major Results Appear Outside Top Journals (and Why They Often Get Snubbed) – Henry Shin
https://igorpak.wordpress.com/2023/04/12/the-journal-hall-of-shame/#comment-2323
Sun, 13 Apr 2025 01:49:24 +0000https://igorpak.wordpress.com/?p=2857#comment-2323[…] Pak, I. “The journal hall of shame.” (April 12, 2023)https://igorpak.wordpress.com/2023/04/12/the-journal-hall-of-shame […]
]]>
Comment on The insidious corruption of open access publishers by Dima
https://igorpak.wordpress.com/2022/01/09/the-insidious-corruption-of-open-access-publishers/#comment-2314
Fri, 24 Jan 2025 03:20:07 +0000https://igorpak.wordpress.com/?p=2365#comment-2314I lately had a rather bad experience with a De Gruyter journal. De Gruyter apparently decided to “streamline” their production process, in particular by not updating their standard journal LaTeX style, since, like 2017 (and requiring LaTeX from 2014) – and outsorcing typesetting to some generic SE Asian firm which has no idea about TeX, beyond basics.
Once the paper was accepted and APCs paid by my former employer, it was time to put the paper under their style file, which proved hard without a lot of silly work. So I decided to tell them I can’t make my paper compile with their old template, so they have to do something themselves, for instance, modernized the template. They said well, send us the files, we’ll fix them. OK, I got galley proofs eventually, and well, they are absolute horror. I suspect them using a convertor to Word, making all the spacing and all the formulae look like total sh*t, apart from typos, typos… I said no, fix this – they replied with a corporate hogwash about fonts being just fine, etc.
I had to create a small LaTeX file using the old template to show how bad the typesetting I got in their proofs. Still waiting for a reply from them…
]]>
Comment on On faith, religion, conjectures and Schubert calculus by igorpak
https://igorpak.wordpress.com/2024/12/29/on-faith-religion-conjectures-and-schubert-calculus/#comment-2308
Wed, 08 Jan 2025 19:48:07 +0000https://igorpak.wordpress.com/?p=3396#comment-2308In reply to Sam Hopkins.
Hi Sam, thank you for paying attention to our work, and I appreciate getting the word out. I think our work speaks for itself. It’s a bit technical and is still in progress obviously, so getting a few sentence summary suitable for MO is difficult I am afraid.
]]>
Comment on On faith, religion, conjectures and Schubert calculus by Sam Hopkins
https://igorpak.wordpress.com/2024/12/29/on-faith-religion-conjectures-and-schubert-calculus/#comment-2307
Wed, 08 Jan 2025 18:55:14 +0000https://igorpak.wordpress.com/?p=3396#comment-2307Hi Igor, wanted to let you know that in a MathOverflow post about Stanley’s positivity problems, I tried to include a brief description of your program regarding structure constants. See https://mathoverflow.net/questions/349406. But I think that your ideas are more sophisticated/nuanced than I initially appreciated, and maybe they evolved over time, so you might want to correct anything I’ve written there. Anyways, happy new year!
]]>
Comment on Concise functions and spanning trees by Collegamento di wonderful anno - Ingegneria
https://igorpak.wordpress.com/2024/12/09/concise-functions-and-spanning-trees/#comment-2305
Sat, 04 Jan 2025 19:24:35 +0000https://igorpak.wordpress.com/?p=3341#comment-2305[…] Funzioni concise e spanning tree ((mathbb{M})). Igor Pak descrive una recente tendenza nell’enumerazione combinatoria, ovvero nello studio dei problemi di conteggio per i quali la maggior parte o tutti i numeri naturali possono essere rappresentati in modo conciso come il numero di soluzioni di qualche istanza. Qui, “concisamente” significa che la dimensione dell’istanza è polilogaritmica nel numero dato, polinomiale nel numero di bit necessari per scrivere il numero. […]
]]>
Comment on On faith, religion, conjectures and Schubert calculus by igorpak
https://igorpak.wordpress.com/2024/12/29/on-faith-religion-conjectures-and-schubert-calculus/#comment-2302
Tue, 31 Dec 2024 06:53:12 +0000https://igorpak.wordpress.com/?p=3396#comment-2302Hi Zach, good question. It’s very easy to make a problem where positivity (non-vanishing) is in P but the counting function is not in #P. Take for example (f-g)^2+1 where f and g are numbers of Hamiltonian cycles in graphs H and G. Positivity in this case is trivial since it’s always true.
If you want a “natural” problem of this kind — I have thought about it for awhile and only have conjectural answers. In my paper “Equality cases of the Alexandrov–Fenchel inequality…” with SH Chan, for k=0 and 1 the positivity problem of the defect of the Stanley poset inequality is in P but the counting conjecturally is not in #P.
In this note with Colleen, see last paragraph of §3.1, we reference another example from a different paper with SH where the positivity is NP-complete but the counting is conjecturally not in #P. The reason I have to keep using “conjecturally” is because we don’t have (yet?) a technology to prove “not in #P” results without proving that positivity is not in PH. I am working on it…
]]>
Comment on On faith, religion, conjectures and Schubert calculus by Zachary Hamaker
https://igorpak.wordpress.com/2024/12/29/on-faith-religion-conjectures-and-schubert-calculus/#comment-2301
Tue, 31 Dec 2024 04:56:27 +0000https://igorpak.wordpress.com/?p=3396#comment-2301In representation theory, a lot of counting problems are finding the dimension of some subspace with a natural spanning set that is not linearly independent. Your solution result has a similar flavor for me – like finding one monomial belonging to a sum of polynomials without knowing which it belongs to. Do you have similar cases where non-vanishing is easy but the counting function is not in #P?
]]>