# Theories, processes, solutions, etc. named for 2 people

**URL:** <https://boards.straightdope.com/t/theories-processes-solutions-etc-named-for-2-people/835610>\
**Category:** In My Humble Opinion\
**Created:** [June 16, 2019, 3:27pm UTC](https://boards.straightdope.com/t/theories-processes-solutions-etc-named-for-2-people/835610 "2019-06-16T15:27:58Z")\
**Posts on this page:** 20\
**Page:** 2

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**Author:** ![peccavi](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/peccavi/32/388_2.png) [@peccavi](https://boards.straightdope.com/u/peccavi)\
**Post date:** [June 17, 2019, 12:01am UTC](https://boards.straightdope.com/t/theories-processes-solutions-etc-named-for-2-people/835610/21 "2019-06-17T00:01:20Z")

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The [Aharonov-Bohm](https://en.wikipedia.org/wiki/Aharonov%E2%80%93Bohm_effect) effect. One of those “quantum trumps classical electromagnetics” items.

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**Author:** ![Peter\_Morris](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/peter_morris/32/359_2.png) [@Peter\_Morris](https://boards.straightdope.com/u/Peter_Morris)\
**Post date:** [June 17, 2019, 12:32am UTC](https://boards.straightdope.com/t/theories-processes-solutions-etc-named-for-2-people/835610/22 "2019-06-17T00:32:19Z")

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> [@markn\_1](#):
>
> There’s even an [Erdős number](https://en.wikipedia.org/wiki/Erd%C5%91s_number) for mathematicians, similar to the Bacon number for actors.

Also an [Erdős–Bacon number](https://en.wikipedia.org/wiki/Erd%C5%91s%E2%80%93Bacon_number), which fits this thread.

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**Author:** ![Chingon](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/chingon/32/17645_2.png) [@Chingon](https://boards.straightdope.com/u/Chingon)\
**Post date:** [June 17, 2019, 12:37am UTC](https://boards.straightdope.com/t/theories-processes-solutions-etc-named-for-2-people/835610/23 "2019-06-17T00:37:53Z")

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Wentzel–Kramers–Brillouin

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**Author:** ![Chingon](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/chingon/32/17645_2.png) [@Chingon](https://boards.straightdope.com/u/Chingon)\
**Post date:** [June 17, 2019, 12:40am UTC](https://boards.straightdope.com/t/theories-processes-solutions-etc-named-for-2-people/835610/24 "2019-06-17T00:40:28Z")

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Hartree–Fock

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**Author:** ![Chronos](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/chronos/32/134_2.png) [@Chronos](https://boards.straightdope.com/u/Chronos)\
**Post date:** [June 17, 2019, 12:48am UTC](https://boards.straightdope.com/t/theories-processes-solutions-etc-named-for-2-people/835610/25 "2019-06-17T00:48:38Z")

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Speaking of theories of gravity, Kaluza-Klein is a model of electromagnetism based on curved space like gravity, and a conceptual ancestor of the string models.

**markn+** , how the heck do you produce that character, then?

EDIT: And of course, that character was invented by Lawrence Acute and Mordecai Double, at the University of Budapest.

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**Author:** ![Mean\_Mr.Mustard](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/mean_mr.mustard/32/3865_2.png) [@Mean\_Mr.Mustard](https://boards.straightdope.com/u/Mean_Mr.Mustard)\
**Post date:** [June 17, 2019, 1:03am UTC](https://boards.straightdope.com/t/theories-processes-solutions-etc-named-for-2-people/835610/26 "2019-06-17T01:03:50Z")

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There are hundreds and hundreds of medical examples.

Here are a few I can think of:

\*\*Wolff-Parkinson-White syndrome \*\*(something to do with cardiac rhythm)

**Sturge-Weber sydrome** (something neurological, seizures)

**Guillain-Barre syndrome** (autoimmune disease involving nervous system)  
mmm

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**Author:** ![blondebear](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/blondebear/32/1022_2.png) [@blondebear](https://boards.straightdope.com/u/blondebear)\
**Post date:** [June 17, 2019, 1:09am UTC](https://boards.straightdope.com/t/theories-processes-solutions-etc-named-for-2-people/835610/27 "2019-06-17T01:09:45Z")

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Myers–Briggs

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**Author:** ![HMS\_Irruncible](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/hms_irruncible/32/7394_2.png) [@HMS\_Irruncible](https://boards.straightdope.com/u/HMS_Irruncible)\
**Post date:** [June 17, 2019, 1:16am UTC](https://boards.straightdope.com/t/theories-processes-solutions-etc-named-for-2-people/835610/28 "2019-06-17T01:16:35Z")

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The Wesley Willis Fiasco.

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**Author:** ![Sefton](https://avatars.discourse-cdn.com/v4/letter/s/5daacb/32.png) [@Sefton](https://boards.straightdope.com/u/Sefton)\
**Post date:** [June 17, 2019, 1:22am UTC](https://boards.straightdope.com/t/theories-processes-solutions-etc-named-for-2-people/835610/29 "2019-06-17T01:22:05Z")

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Heckscher–Ohlin model for economics

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**Author:** ![markn\_1](https://avatars.discourse-cdn.com/v4/letter/m/f9ae1b/32.png) [@markn\_1](https://boards.straightdope.com/u/markn_1)\
**Post date:** [June 17, 2019, 1:46am UTC](https://boards.straightdope.com/t/theories-processes-solutions-etc-named-for-2-people/835610/30 "2019-06-17T01:46:26Z")

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> [@Chronos](#):
>
> **markn+** , how the heck do you produce that character, then?

The Unicode value is U+0151 (or U+0150 for upper case). How you actually enter it depends on what OS you’re using. Sometimes there’s a key sequence to enter the Unicode value directly. Or you can do what I do, just find it somewhere, like in the wiki article, and copy/paste it.

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**Author:** ![septimus](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/septimus/32/410_2.png) [@septimus](https://boards.straightdope.com/u/septimus)\
**Post date:** [June 17, 2019, 11:37am UTC](https://boards.straightdope.com/t/theories-processes-solutions-etc-named-for-2-people/835610/31 "2019-06-17T11:37:00Z")

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Don’t forget the Roth-Stone and Kaplan-Sheinwold Systems of bidding for contract bridge. They introduced important conventions like Weak Twos, Negative Doubles, Weak No Trump.

Obviously there are still dozens of important math theorems not yet mentioned. I’ll just throw in three famous paradoxes — Banach-Tarski Paradox, Borel-Kolmogorov Paradox, Cramer-Euler Paradox — and an Identity named after two ancients: the Brahmagupta-Fibonacci Identity.

> [@Chronos](#):
>
> In quantum mechanics, Bose-Einstein statistics describe the behavior of one sort of particles (called “bosons”), and Fermi-Dirac statistics describe the behavior of the other sort (called “fermions”).

Don’t forget Maxwell-Boltzmann statistics, presented first and IIUC still useful as an approximation to both B-E and F-D statistics at highish temperatures and lowish densities.

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**Author:** ![mcgato](https://avatars.discourse-cdn.com/v4/letter/m/ac8455/32.png) [@mcgato](https://boards.straightdope.com/u/mcgato)\
**Post date:** [June 17, 2019, 12:06pm UTC](https://boards.straightdope.com/t/theories-processes-solutions-etc-named-for-2-people/835610/32 "2019-06-17T12:06:05Z")

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[Saffir-Simpson scale](https://en.wikipedia.org/wiki/Saffir%E2%80%93Simpson_scale) for hurricane strength.

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**Author:** ![Telemark](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/telemark/32/372_2.png) [@Telemark](https://boards.straightdope.com/u/Telemark)\
**Post date:** [June 17, 2019, 12:32pm UTC](https://boards.straightdope.com/t/theories-processes-solutions-etc-named-for-2-people/835610/33 "2019-06-17T12:32:54Z")

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How about the [Gell-Mann-Okubo mass formula](https://en.wikipedia.org/wiki/Gell-Mann%E2%80%93Okubo_mass_formula), which looks like it shouldn’t meet the criteria in the OP but does.

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**Author:** ![Colibri](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/colibri/32/1841_2.png) [@Colibri](https://boards.straightdope.com/u/Colibri)\
**Post date:** [June 17, 2019, 12:38pm UTC](https://boards.straightdope.com/t/theories-processes-solutions-etc-named-for-2-people/835610/34 "2019-06-17T12:38:05Z")

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The Darwin-Wallace Theory of Evolution by Natural Selection, although Wallace is often left out.

In ecology, there’s the Janzen-Connell hypothesis about what maintains species diversity in tropical forests and coral reefs.

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**Author:** ![Hari\_Seldon](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/hari_seldon/32/5173_2.png) [@Hari\_Seldon](https://boards.straightdope.com/u/Hari_Seldon)\
**Post date:** [June 17, 2019, 1:15pm UTC](https://boards.straightdope.com/t/theories-processes-solutions-etc-named-for-2-people/835610/35 "2019-06-17T13:15:49Z")

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There are loads of them in math. Here’s a few.  
Stone-Weierstrass theorem.  
Stone-Cech compactification.  
Yank-Mills equation.  
Eilenberg-Steenrod axioms for homology.  
Eilenberg-Mac Lane cohomology.  
Zermelo-Frankel axioms for set theory.

I could go on–but won’t.

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**Author:** ![HeyHomie](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/heyhomie/32/207_2.png) [@HeyHomie](https://boards.straightdope.com/u/HeyHomie)\
**Post date:** [June 17, 2019, 1:43pm UTC](https://boards.straightdope.com/t/theories-processes-solutions-etc-named-for-2-people/835610/36 "2019-06-17T13:43:16Z")

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[The Cooper-Nowitzki Theorem](https://www.imdb.com/title/tt1256037/).

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**Author:** ![psychonaut](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/psychonaut/32/4655_2.png) [@psychonaut](https://boards.straightdope.com/u/psychonaut)\
**Post date:** [June 17, 2019, 1:55pm UTC](https://boards.straightdope.com/t/theories-processes-solutions-etc-named-for-2-people/835610/37 "2019-06-17T13:55:21Z")

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> [@ftg](#):
>
> Richard Feynman is a well-hyphenated person.

Technically they’re not hyphens but en dashes, which are used for noun–noun compounds in English. (For some reason, the SDMB replaces en dashes with hyphens when viewing a thread, which sets off my typographical OCD something fierce.)

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**Author:** ![Great\_Antibob](https://avatars.discourse-cdn.com/v4/letter/g/e47c2d/32.png) [@Great\_Antibob](https://boards.straightdope.com/u/Great_Antibob)\
**Post date:** [June 17, 2019, 2:12pm UTC](https://boards.straightdope.com/t/theories-processes-solutions-etc-named-for-2-people/835610/38 "2019-06-17T14:12:36Z")

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[Runge-Kutta](https://en.wikipedia.org/wiki/Runge%E2%80%93Kutta_methods) methods in numerical analysis, which most people with STEM degrees were probably exposed to in college.

[Cooley-Tukey](https://en.wikipedia.org/wiki/Cooley%E2%80%93Tukey_FFT_algorithm) algorithm - the first modern FFT algorithm and basis for a vast amount of modern computation.

The [Parks-McClellan algorithm](https://en.wikipedia.org/wiki/Parks%E2%80%93McClellan_filter_design_algorithm) for designing finite impulse response filters - though both Parks and McClellan instead preferred calling it a variation of the Remez exchange algorithm, which is how it is documented in Matlab.

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**Author:** ![dtilque](https://avatars.discourse-cdn.com/v4/letter/d/d6d6ee/32.png) [@dtilque](https://boards.straightdope.com/u/dtilque)\
**Post date:** [June 17, 2019, 3:48pm UTC](https://boards.straightdope.com/t/theories-processes-solutions-etc-named-for-2-people/835610/39 "2019-06-17T15:48:48Z")

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[Haber-Bosch](https://en.wikipedia.org/wiki/Haber_process) process for making ammonia (often shortened to just the Haber process). And that page provided two more:

[Frank-Caro process](https://en.wikipedia.org/wiki/Frank%E2%80%93Caro_process) for making calcium cyanamide.

[Birkeland-Eyde process](https://en.wikipedia.org/wiki/Birkeland%E2%80%93Eyde_process) for making nitric acid.

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**Author:** ![QuickSilver](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/quicksilver/32/7832_2.png) [@QuickSilver](https://boards.straightdope.com/u/QuickSilver)\
**Post date:** [June 17, 2019, 3:59pm UTC](https://boards.straightdope.com/t/theories-processes-solutions-etc-named-for-2-people/835610/40 "2019-06-17T15:59:00Z")

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[Beavis-Butthead apple/tree genetic model.](https://imgflip.com/i/1scw3c)

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