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Apr
14
comment Examples of mathematical results discovered “late”
To wit, you may be interested to learn that in early 20th century, most of the literature follows Noether in studying "groups of operators" (what we now refer to as "group actions") rather than groups in the abstract. Even Galois was mostly concerned about the action of groups on polynomials, and spent comparatively little time developing groups abstractly.
Apr
14
comment Examples of mathematical results discovered “late”
@mistermarko ...I'm not sure quite how to respond to that. The English language synonym of the word "group" obviously has no effect on when group theory was developed. Do you think groups would have been discovered earlier if they were named differently?
Apr
3
revised Examples of finite nonabelian groups.
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Mar
27
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Mar
27
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Mar
21
revised Motivation for spectral graph theory.
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Mar
2
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Feb
28
reviewed Leave Open show by calculation that the derivative of the fermi function (logistic function) can be expressed by the function itself
Feb
28
reviewed Leave Open Newton's Method and Julia sets and the Douady rabbit. What's the relation?
Feb
28
reviewed Leave Open Compressing permutations
Feb
19
reviewed Leave Open Probability of winning dice roll-off with a re-roll
Feb
19
reviewed Close Solve the system of equation with answers as x=___+___s
Feb
19
reviewed Close How would you solve this system if linear equations in 3 variables?
Feb
18
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Feb
18
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Feb
17
reviewed Looks OK Equations of motion into Binet's equation
Feb
17
reviewed Leave Open where is the function derivable?
Feb
17
reviewed Leave Open Solution of an equation with polynomial and exponential terms
Feb
17
reviewed Leave Open Limit of complex exponential
Feb
17
reviewed Close Explain $\tan^2(\tan^{-1}(x))$ becoming $x^2$