Bohemian Eigenvalues Joint work by: Robert M. Corless Steven E. - - PowerPoint PPT Presentation

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Bohemian Eigenvalues Joint work by: Robert M. Corless Steven E. - - PowerPoint PPT Presentation

Bohemian Eigenvalues Joint work by: Robert M. Corless Steven E. Thornton Sonia Gupta Jonathan Brino-Tarasoff Venkat Balasubramanian


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Bohemian Eigenvalues

Joint work by: Robert M. Corless Steven E. Thornton Sonia Gupta Jonathan Brino-Tarasoff Venkat Balasubramanian

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SLIDE 2

⊆ ⊂ = {, }

History

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Details

≤ {−, }

  • Source: math.ucr.edu/home/baez/roots/

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SLIDE 4

Details

≤ −

Source: math.ucr.edu/home/baez/roots/

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SLIDE 5

Details

≤ {, , . . . , }

Source: crd.lbl.gov/departments/applied-mathematics/ANAG/about/ staff-and-postdocs/terry-ligocki/density-of-polynomial-roots/

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SLIDE 6

Eigenvalues of Random Matrices

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{−, , } {, , } {, , }

  • #

# # # # # #

  • Some Properties

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SLIDE 8

{, } {−, } {, }

  • #

# # # # # #

  • Some Properties

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= {, } = = ( − ) ( − ) ( − )( + ) ( − )

Repeats

8/29

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− − ! = → () () () . . .

Why Are There Repeats?

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Besides, We Hate Polynomials

10/29

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SLIDE 12

{−, , }

− − −

− −

− −

− −

− −

  • 11/29
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SLIDE 13

2 ✕2 Matrices, {-1, 0, 1}

  • +

  • −+

  • −−

  • +

  • −+

  • −−

  • +
  • − +
  • − −
  • 12/29
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SLIDE 14

3 ✕3 Matrices, {-1, 0, 1}

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4 ✕4 Matrices, {-1, 0, 1}

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Sampling

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Details

× {−, , }

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Details

Source: reddit.com/r/mathpics/comments/1hxbma/ inherent_structure_of_the_algebraic_numbers_of/

  • ±. ± .

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SLIDE 19

Details

Source: reddit.com/r/mathpics/comments/1hxbma/ inherent_structure_of_the_algebraic_numbers_of/

  • 18/29
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SLIDE 20

Details

Source: reddit.com/r/mathpics/comments/1hxbma/ inherent_structure_of_the_algebraic_numbers_of/

  • 19/29
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Details

× {−, −, , , }

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Details

× {−, −/, , /, }

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Details

× {−, −/, , /, }

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Details

× {e/ | ≤ < }

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Details

× − ∼ (., .)

  • 24/29
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Details

× − ∼ (., .)

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SLIDE 27

Details

  

− − −     (−, )

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SLIDE 28

Details

 −

 (−, )

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SLIDE 29

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SLIDE 30
  • Future Work

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SLIDE 31

Thank You!

Source code with examples available at:

github.com/steventhornton/BHIME-Project