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José Carlos Santos's user avatar
José Carlos Santos's user avatar
José Carlos Santos's user avatar
José Carlos Santos
  • Member for 7 years, 3 months
  • Last seen this week
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About

I am a mathematician who works at the University of Porto (Portugal). My PhD, on Representation Theory, was obtained at the Université Paris — Denis Diderot, in 1996.

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Top posts
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question
47
Why were the Allies so much better cryptanalysts?
Nov 22, 2020
question
31
Could a German insult Hitler without being arrested?
Dec 15, 2019
answer
31
What is the context for Napoleon's quote "[the Austrians] did not know the value of five minutes"?
Jun 13, 2019
answer
31
Who was the last leader of a country to call himself a dictator, or the last regime that called itself a dictatorship?
Nov 8, 2021
question
30
In what way were Renaissance battles like chess matches?
Oct 29, 2019
question
26
How likely it is that a nobleman of the eighteenth century would give written instructions to his maids?
Jan 24, 2021
answer
23
Have any astronauts or cosmonauts died in space?
Feb 20, 2019
answer
23
Why did Europeans (and not people in other regions) dominate oceans?
Jun 8, 2018
answer
19
Has there ever been a peaceful overthrow of a dictator or monarch?
Sep 21, 2018
question
18
Did Emanuel Lasker write a book declaring that Germany had to win World War I if civilization were to be saved?
Sep 12, 2018
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187
Why not include as a requirement that all functions must be continuous to be differentiable?
182
Why was "An Update to our Community and an Apology" deleted?
137
Unexpected examples of natural logarithm
93
How can a "proper" function have a vertical slope?
91
Does an increasing sequence of reals converge if the difference of consecutive terms approaches zero?