xuq01

Mathematician and theoretical computer scientist in training.

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Have "Brodal search trees" really been implemented for practical use?

scala haskell data-structures functional-programming ocaml asked Dec 27, 2018 at 12:52

stackoverflow.com

18 votes

I have a ticket for a conventional railway line. Can I take the Shinkansen instead (or vice versa)?

trains tickets japan japan-rail asked Aug 11, 2018 at 16:22

travel.stackexchange.com

17 votes

List of (unsolved) complexity problems arising from PL

cc.complexity-theory pl.programming-languages big-list open-problem asked Feb 26, 2018 at 2:47

cstheory.stackexchange.com

17 votes

Using linear logic in algebraic geometry and commutative algebra

ag.algebraic-geometry ct.category-theory lo.logic asked Aug 27, 2020 at 17:52

mathoverflow.net

13 votes

Neural networks over gadgets other than $\mathbb{R}$

ds.dynamical-systems machine-learning asked Sep 28, 2021 at 6:54

mathoverflow.net

13 votes

Reconstructing base manifold from its category of smooth vector bundles

dg.differential-geometry ct.category-theory vector-bundles asked Feb 27 at 5:44

mathoverflow.net

12 votes

Book on manifolds from a sheaf-theoretic/locally ringed space PoV

ag.algebraic-geometry reference-request dg.differential-geometry smooth-manifolds textbook-recommendation asked Feb 10, 2020 at 19:46

mathoverflow.net

12 votes

Why do some tricks in homological algebra work over the category of C*-algebras?

ct.category-theory homological-algebra oa.operator-algebras c-star-algebras abelian-categories asked Jun 18, 2020 at 11:08

mathoverflow.net

11 votes

Where does the exclamation せ〜の come from?

etymology asked Mar 12, 2017 at 2:35

japanese.stackexchange.com

11 votes

The "unification" of geometry via topos theory?

ag.algebraic-geometry dg.differential-geometry soft-question topos-theory asked Mar 25, 2021 at 12:20

mathoverflow.net

Top Answers

137

How can I convince graduate students in China to not copy/paste from the Internet into their research papers?

academia.stackexchange.com

Why is PhD GPA considered irrelevant?

academia.stackexchange.com

How does the taxi scam work at Luohu station in Shenzhen?

travel.stackexchange.com

Do many Japanese people speak Korean?

travel.stackexchange.com

Do any programming languages use general recursive functions as their basis?

cs.stackexchange.com

Persistent issues with salary pay as a postdoc in China: What can I do?

academia.stackexchange.com

May I get off in an intermediate city of my route during transfer?

travel.stackexchange.com

Am I allowed to leave airport in the USA during a 23-hour layover?

travel.stackexchange.com

Why were Red Army Officers and soldiers not prosecuted for War Crimes in WWII?

history.stackexchange.com

Travelling by plane with a stop in China - will I be quarantined?

travel.stackexchange.com

Why is there a general dislike for asian universities?

academia.stackexchange.com

Why can't だ be used after an I-adjective?

japanese.stackexchange.com

Board Chinese train at a different station (on-route)

travel.stackexchange.com

Is it possible to cycle from Kansai Airport to Central Osaka?

travel.stackexchange.com

Capitalising terms like “machine learning” and “natural language processing”

academia.stackexchange.com

I have a ticket for a conventional railway line. Can I take the Shinkansen instead (or vice versa)?

travel.stackexchange.com

Is a professor allowed to require me to give him permission to speak with my doctor before letting me make up an exam?

academia.stackexchange.com

Are there any examples of contested elections held to elect a king?

politics.stackexchange.com

Is American Express widely accepted in Hong Kong?

travel.stackexchange.com

What is the most remote airport from the center of the city it supposedly serves?

travel.stackexchange.com

Why didn't Thatcher give Hong Kong to Taiwan?

politics.stackexchange.com

Is it a good idea to go to Japan without a travel guide?

travel.stackexchange.com

Where to store passport during day trip in foreign country

travel.stackexchange.com

Where can I go to avoid planes overhead?

travel.stackexchange.com

Can a traveller use Alipay/Tenpay mobile payments in China?

travel.stackexchange.com

What laws and regulations were violated by John Oliver's critique of Chinese President Xi Jinping?

politics.stackexchange.com

How are elections conducted in China?

politics.stackexchange.com

Why do we hear so little about the German President?

politics.stackexchange.com

Why hasn't South Korea restored its monarchy?

politics.stackexchange.com

Can I write notes in my passport?

travel.stackexchange.com