Markov operators, classical orthogonal polynomial ensembles, and random matrices
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- Archibald McLaughlin
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1 Markov operators, classical orthogonal polynomial ensembles, and random matrices M. Ledoux, Institut de Mathématiques de Toulouse, France 5ecm Amsterdam, July 2008
2 recent study of random matrix and random growth models
3 recent study of random matrix and random growth models new asymptotics common, non central, rate (mean) 1/3 universal limiting Tracy-Widom distribution
4 recent study of random matrix and random growth models new asymptotics common, non central, rate (mean) 1/3 universal limiting Tracy-Widom distribution random matrices, longest increasing subsequence, random growth models, last passage percolation... P. Forrester, C. Tracy, H. Widom, J. Baik, P. Deift, K. Johansson
5 invariant random matrix models
6 invariant random matrix models P(dX ) = 1 Z exp ( Tr ( v(x ) )) dx, v : R R X = X N real symmetric or Hermitian N N matrix
7 invariant random matrix models P(dX ) = 1 Z exp ( Tr ( v(x ) )) dx, v : R R X = X N real symmetric or Hermitian N N matrix v(x) = β x 2 /4 Gaussian Orthogonal (β = 1) Unitary (β = 2) Ensembles
8 invariant random matrix models P(dX ) = 1 Z exp ( Tr ( v(x ) )) dx, v : R R X = X N real symmetric or Hermitian N N matrix v(x) = β x 2 /4 Gaussian Orthogonal (β = 1) Unitary (β = 2) Ensembles joint law of the eigenvalues (λ N 1 λn N ) of X N
9 invariant random matrix models P(dX ) = 1 Z exp ( Tr ( v(x ) )) dx, v : R R X = X N real symmetric or Hermitian N N matrix v(x) = β x 2 /4 Gaussian Orthogonal (β = 1) Unitary (β = 2) Ensembles joint law of the eigenvalues (λ N 1 λn N ) of X N P N (dx) = 1 Z N (x) β N i=1 dµ(x i ), x = (x 1,..., x N ) R N N (x) = i<j (x i x j ), dµ(x) = e v(x) dx
10 random growth models directed last passage percolation
11 random growth models directed last passage percolation w ij, 1 i, j N, iid geometric random variables
12 random growth models directed last passage percolation w ij, 1 i, j N, iid geometric random variables W N = max π (i,j) π w ij π up/right paths from (1, 1) to (N, N)
13 random growth models directed last passage percolation w ij, 1 i, j N, iid geometric random variables W N = max π (i,j) π w ij π up/right paths from (1, 1) to (N, N) K. Johansson (2000)
14 random growth models directed last passage percolation w ij, 1 i, j N, iid geometric random variables W N = max π (i,j) π w ij π up/right paths from (1, 1) to (N, N) P ( W N t) = K. Johansson (2000) {max x i t+n 1} 1 Z N(x) 2 N dµ(x i ) i=1
15 random growth models directed last passage percolation w ij, 1 i, j N, iid geometric random variables W N = max π (i,j) π w ij π up/right paths from (1, 1) to (N, N) P ( W N t) = K. Johansson (2000) {max x i t+n 1} 1 Z N(x) 2 N dµ(x i ) i=1 µ({x}) = (1 q)q x, x N geometric distribution
16 law of (λ N 1,..., λ N N ) : PN (dx) = 1 Z N (x) β N i=1 dµ(x i )
17 law of (λ N 1,..., λ N N ) : PN (dx) = 1 Z N (x) β global regime : spectral measure N i=1 dµ(x i )
18 law of (λ N 1,..., λ N N ) : PN (dx) = 1 Z N (x) β global regime : spectral measure N i=1 dµ(x i ) large deviation asymptotics (every β)
19 law of (λ N 1,..., λ N N ) : PN (dx) = 1 Z N (x) β global regime : spectral measure N i=1 dµ(x i ) P N (dx) = 1 Z exp ( N v(x i ) + β i<j i=1 ) log x i x j dx
20 law of (λ N 1,..., λ N N ) : PN (dx) = 1 Z N (x) β global regime : spectral measure N i=1 dµ(x i ) P N (dx) = 1 Z exp ( N v(x i ) + β i<j i=1 ) log x i x j dx spectral measure : λn i = λ N i suitably normalized N µ N = 1 N i=1 δ bλ N i
21 law of (λ N 1,..., λ N N ) : PN (dx) = 1 Z N (x) β global regime : spectral measure N i=1 dµ(x i ) P N (dx) = 1 Z exp ( N v(x i ) + β i<j i=1 ) log x i x j dx spectral measure : λn i = λ N i suitably normalized µ N = 1 N N i=1 δ bλ N i equilibrium measure
22 law of (λ N 1,..., λ N N ) : PN (dx) = 1 Z N (x) β global regime : spectral measure N i=1 dµ(x i ) P N (dx) = 1 Z exp ( N v(x i ) + β i<j i=1 ) log x i x j dx spectral measure : λn i = λ N i suitably normalized µ N = 1 N δ bλ N N i i=1 equilibrium measure minimizer of 2 v dν β log x y dν(x)dν(y) weighted logarithmic potential theory
23 local regime : individual behavior (spacings, extreme values)
24 local regime : individual behavior (spacings, extreme values) β = 2 orthogonal polynomial method
25 local regime : individual behavior (spacings, extreme values) β = 2 orthogonal polynomial method P l, l N orthogonal polynomials for µ
26 local regime : individual behavior (spacings, extreme values) β = 2 orthogonal polynomial method P l, l N orthogonal polynomials for µ N (x) = C n det ( P l 1 (x k ) ) 1 k,l N
27 local regime : individual behavior (spacings, extreme values) β = 2 orthogonal polynomial method P l, l N orthogonal polynomials for µ N (x) 2 = C 2 n det 2( P l 1 (x k ) ) 1 k,l N
28 local regime : individual behavior (spacings, extreme values) β = 2 orthogonal polynomial method P l, l N orthogonal polynomials for µ N (x) 2 = C 2 n det 2( P l 1 (x k ) ) 1 k,l N P N (dx) = 1 Z N(x) 2 N i=1 dµ(x i)
29 local regime : individual behavior (spacings, extreme values) β = 2 orthogonal polynomial method P l, l N orthogonal polynomials for µ N (x) 2 = C 2 n det 2( P l 1 (x k ) ) 1 k,l N P N determinantal random point field structure
30 local regime : individual behavior (spacings, extreme values) β = 2 orthogonal polynomial method P l, l N orthogonal polynomials for µ N (x) 2 = C 2 n det 2( P l 1 (x k ) ) 1 k,l N P N determinantal random point field structure marginals of P N : determinants of the kernel K N (x, y) = N 1 l=0 P l (x)p l (y)
31 local regime : individual behavior (spacings, extreme values) β = 2 orthogonal polynomial method P l, l N orthogonal polynomials for µ N (x) 2 = C 2 n det 2( P l 1 (x k ) ) 1 k,l N P N determinantal random point field structure marginals of P N : determinants of the kernel K N (x, y) = N 1 l=0 P l (x)p l (y) orthogonal polynomial ensemble
32 (common) asymptotics of orthogonal polynomials universal local regime : spacings and edge behavior
33 (common) asymptotics of orthogonal polynomials universal local regime : spacings and edge behavior top edge behavior largest eigenvalue (particle) fluctuates at the rate (mean) 1/3 limiting Tracy-Widom distribution F TW
34 (common) asymptotics of orthogonal polynomials universal local regime : spacings and edge behavior top edge behavior largest eigenvalue (particle) fluctuates at the rate (mean) 1/3 limiting Tracy-Widom distribution F TW C. Tracy, H. Widom, P. Deift, X. Zhou, J. Baik, K. Johansson,. Kriecherbauer, K. McLaughlin, P. Miller, S. Venakides, M. Vanlessen, D. Gioev, P. Bleher, A. Its, A. Kuijlaars, M. Shcherbina, L. Pastur...
35 example : Gaussian Unitary Ensemble (GUE)
36 example : Gaussian Unitary Ensemble (GUE) dµ(x) = e x2 /2 dx 2π, K N Hermite kernel, λn i = λ N i / N
37 example : Gaussian Unitary Ensemble (GUE) dµ(x) = e x2 /2 dx 2π, K N Hermite kernel, λn i = λ N i / N spectral measure µ N = 1 N N i=1 δ bλ N 1 4 x i 2π 2 dx on ( 2, +2) Wigner semi-circle law
38 example : Gaussian Unitary Ensemble (GUE) dµ(x) = e x2 /2 dx 2π, K N Hermite kernel, λn i = λ N i / N spectral measure µ N = 1 N N i=1 δ bλ N 1 4 x i 2π 2 dx on ( 2, +2) Wigner semi-circle law largest eigenvalue λ N N
39 example : Gaussian Unitary Ensemble (GUE) dµ(x) = e x2 /2 dx 2π, K N Hermite kernel, λn i = λ N i / N spectral measure µ N = 1 N N i=1 δ bλ N 1 4 x i 2π 2 dx on ( 2, +2) Wigner semi-circle law largest eigenvalue λ N N / N 2
40 example : Gaussian Unitary Ensemble (GUE) dµ(x) = e x2 /2 dx 2π, K N Hermite kernel, λn i = λ N i / N spectral measure µ N = 1 N N i=1 δ bλ N 1 4 x i 2π 2 dx on ( 2, +2) Wigner semi-circle law largest eigenvalue λ N N / N 2 N 1/6[ λ N N 2 N ] F TW Tracy-Widom distribution
41 example : Gaussian Unitary Ensemble (GUE) dµ(x) = e x2 /2 dx 2π, K N Hermite kernel, λn i = λ N i / N spectral measure µ N = 1 N N i=1 δ bλ N 1 4 x i 2π 2 dx on ( 2, +2) Wigner semi-circle law largest eigenvalue λ N N / N 2 N 1/6[ λ N N 2 N ] F TW Tracy-Widom distribution ( F TW (s) = exp u = 2u 3 + xu s (x s)u(x) 2 dx Painlevé II equation ), s R
42 example : last passage percolation W N = max π (i,j) π w ij
43 example : last passage percolation W N = max π (i,j) π w ij µ geometric, K N Meixner kernel, λn i = λ N i /N
44 example : last passage percolation W N = max π (i,j) π w ij µ geometric, K N Meixner kernel, λn i = λ N i /N spectral measure µ N = 1 N N δ bλ N equilibrium measure on (a, b) i i=1
45 example : last passage percolation W N = max π (i,j) π w ij µ geometric, K N Meixner kernel, λn i = λ N i /N spectral measure µ N = 1 N N δ bλ N equilibrium measure on (a, b) i i=1 largest particle λ N N W N
46 example : last passage percolation W N = max π (i,j) π w ij µ geometric, K N Meixner kernel, λn i = λ N i /N spectral measure µ N = 1 N N δ bλ N equilibrium measure on (a, b) i i=1 largest particle λ N N W N/N b
47 example : last passage percolation W N = max π (i,j) π w ij µ geometric, K N Meixner kernel, λn i = λ N i /N spectral measure µ N = 1 N N δ bλ N equilibrium measure on (a, b) i i=1 largest particle λ N N W N/N b N 1/3[ W N bn ] F TW Tracy-Widom distribution K. Johansson (2000)
48 Markov operator tools
49 Markov operator tools for classical orthogonal polynomial ensembles of random matrix and random growth models
50 Markov operator tools for classical orthogonal polynomial ensembles of random matrix and random growth models non asymptotic results
51 Markov operator tools for classical orthogonal polynomial ensembles of random matrix and random growth models non asymptotic results spectral description (universal arcsine law)
52 Markov operator tools for classical orthogonal polynomial ensembles of random matrix and random growth models non asymptotic results spectral description (universal arcsine law) recurrence equations for moments (map enumeration)
53 Markov operator tools for classical orthogonal polynomial ensembles of random matrix and random growth models non asymptotic results spectral description (universal arcsine law) recurrence equations for moments (map enumeration) recurrence equations for real symmetric models (Gaussian Orthogonal Ensemble)
54 Markov operator tools for classical orthogonal polynomial ensembles of random matrix and random growth models non asymptotic results spectral description (universal arcsine law) recurrence equations for moments (map enumeration) recurrence equations for real symmetric models (Gaussian Orthogonal Ensemble) non asymptotic tail inequalities for largest eigenvalues (optimal rate)
55 classical orthogonal polynomial ensembles Hermite, Laguerre, Jacobi, Charlier, Meixner, Krawtchouk, Hahn
56 classical orthogonal polynomial ensembles Hermite, Laguerre, Jacobi, Charlier, Meixner, Krawtchouk, Hahn differential equations and operators
57 classical orthogonal polynomial ensembles Hermite, Laguerre, Jacobi, Charlier, Meixner, Krawtchouk, Hahn differential equations and operators mean spectral measure µ N = E ( 1 N i=1 δ λ N ) i
58 classical orthogonal polynomial ensembles Hermite, Laguerre, Jacobi, Charlier, Meixner, Krawtchouk, Hahn differential equations and operators mean spectral measure µ N = E ( 1 N i=1 δ λ N ) i f, µ N = f (x) 1 N K N(x, x) dµ(x) = f N 1 1 Pl 2 N dµ l=0
59 classical orthogonal polynomial ensembles Hermite, Laguerre, Jacobi, Charlier, Meixner, Krawtchouk, Hahn differential equations and operators mean spectral measure µ N = E ( 1 N i=1 δ λ N ) i f, µ N = f (x) 1 N K N(x, x) dµ(x) = f N 1 1 Pl 2 N dµ l=0 example : Gaussian Unitary Ensemble (GUE)
60 classical orthogonal polynomial ensembles Hermite, Laguerre, Jacobi, Charlier, Meixner, Krawtchouk, Hahn differential equations and operators mean spectral measure µ N = E ( 1 N i=1 δ λ N ) i f, µ N = f (x) 1 N K N(x, x) dµ(x) = f N 1 1 Pl 2 N dµ l=0 example : Gaussian Unitary Ensemble (GUE) P l, l N Hermite polynomials for dµ(x) = e x2 /2 dx 2π normalized in L 2 (µ)
61 f, µ N = f N 1 1 Pl 2 N dµ l=0
62 f, µ N = f N 1 1 Pl 2 N dµ l=0 preliminary investigation : measure P 2 N dµ
63 f, µ N = f N 1 1 Pl 2 N dµ l=0 preliminary investigation : measure P 2 N dµ Laplace transform : ϕ(t) = e tx P 2 N dµ, t R
64 f, µ N = f N 1 1 Pl 2 N dµ l=0 preliminary investigation : measure P 2 N dµ Laplace transform : ϕ(t) = e tx P 2 N dµ, t R Hermite operator : Lf = f x f
65 f, µ N = f N 1 1 Pl 2 N dµ l=0 preliminary investigation : measure P 2 N dµ Laplace transform : ϕ(t) = e tx P 2 N dµ, t R Hermite operator : Lf = f x f Gaussian integration by parts : f ( Lg)dµ = f g dµ
66 f, µ N = f N 1 1 Pl 2 N dµ l=0 preliminary investigation : measure P 2 N dµ Laplace transform : ϕ(t) = e tx P 2 N dµ, t R Hermite operator : Lf = f x f Gaussian integration by parts : f ( Lg)dµ = f g dµ LP N = N P N eigenvectors
67 Laplace transform : ϕ(t) = e tx P 2 N dµ second order differential equation tϕ + ϕ t(t 2 + 4N + 2)ϕ = 0
68 Laplace transform : ϕ(t) = e tx P 2 N dµ second order differential equation tϕ + ϕ t(t 2 + 4N + 2)ϕ = 0 under the GUE scaling : t t/ N ( λ N i = λ N i / N)
69 Laplace transform : ϕ(t) = e tx P 2 N dµ second order differential equation tϕ + ϕ t(t 2 + 4N + 2)ϕ = 0 under the GUE scaling : t t/ N ( λ N i = λ N i / N) limiting differential equation t Φ + Φ 4t Φ = 0
70 Laplace transform : ϕ(t) = e tx P 2 N dµ second order differential equation tϕ + ϕ t(t 2 + 4N + 2)ϕ = 0 under the GUE scaling : t t/ N ( λ N i = λ N i / N) limiting differential equation t Φ + Φ 4t Φ = 0 Φ Laplace transform of the arcsine law dx π 4 x 2 on ( 2, +2)
71 common behavior, with the limiting arcsine law for the classical orthogonal polynomials of (normalized) measures P 2 N dµ
72 common behavior, with the limiting arcsine law for the classical orthogonal polynomials of (normalized) measures P 2 N dµ continuous variable : Hermite, Laguerre, Jacobi
73 common behavior, with the limiting arcsine law for the classical orthogonal polynomials of (normalized) measures P 2 N dµ continuous variable : Hermite, Laguerre, Jacobi discrete variable : Charlier, Meixner, Krawtchouk, Hahn
74 common behavior, with the limiting arcsine law for the classical orthogonal polynomials of (normalized) measures P 2 N dµ continuous variable : Hermite, Laguerre, Jacobi discrete variable : Charlier, Meixner, Krawtchouk, Hahn varying parameters (in N)
75 common behavior, with the limiting arcsine law for the classical orthogonal polynomials of (normalized) measures P 2 N dµ continuous variable : Hermite, Laguerre, Jacobi discrete variable : Charlier, Meixner, Krawtchouk, Hahn varying parameters (in N) compact case : A. Maté, P. Nevai, V. Totik (1985)
76 spectral measure : averaging procedure
77 spectral measure : averaging procedure GUE E ( f, µ N ) = 1 N N 1 l=0 ( ) l f N x Pl 2 dµ l
78 spectral measure : averaging procedure GUE E ( f, µ N ) = 1 N N 1 l=0 ( ) l f N x Pl 2 dµ l µ N = 1 N N i=1 δ bλ N i U ξ U uniform, ξ arcsine, independent
79 spectral measure : averaging procedure GUE E ( f, µ N ) = 1 N N 1 l=0 ( ) l f N x Pl 2 dµ l µ N = 1 N N i=1 δ bλ N i U ξ U uniform, ξ arcsine, independent U ξ semi-circle law on ( 2, +2)
80 spectral measure : averaging procedure GUE E ( f, µ N ) = 1 N N 1 l=0 ( ) l f N x Pl 2 dµ l µ N = 1 N N i=1 δ bλ N i U ξ U uniform, ξ arcsine, independent U ξ semi-circle law on ( 2, +2) Meixner example (µ geometric) : equilibrium measure
81 example : last passage percolation W N = max π (i,j) π w ij µ geometric, K N Meixner kernel, λn i = λ N i /N spectral measure µ N = 1 N N δ bλ N equilibrium measure on (a, b) i i=1 largest particle λ N N W N/N b N 1/3[ W N bn ] F TW Tracy-Widom distribution K. Johansson (2000)
82 spectral measure : averaging procedure GUE E ( f, µ N ) = 1 N N 1 l=0 ( ) l f N x Pl 2 dµ l µ N = 1 N N i=1 δ bλ N i U ξ U uniform, ξ arcsine, independent U ξ semi-circle law on ( 2, +2) Meixner example (µ geometric) : equilibrium measure
83 spectral measure : averaging procedure GUE E ( f, µ N ) = 1 N N 1 l=0 ( ) l f N x Pl 2 dµ l µ N = 1 N N i=1 δ bλ N i U ξ U uniform, ξ arcsine, independent U ξ semi-circle law on ( 2, +2) Meixner example (µ geometric) : equilibrium measure 1 ( [ ] ) qu(1 + U) ξ + U + q(1 + U) 1 q
84 moment recursion formula
85 moment recursion formula E ( e t Tr(X N ) ) = ψ(t) = N 1 e tx l=0 P 2 l dµ, t R differential equation
86 moment recursion formula E ( e t Tr(X N ) ) = ψ(t) = N 1 e tx l=0 P 2 l dµ, t R differential equation GUE tψ + 3ψ t(t 2 + 4N)ψ = 0 U. Haagerup, S. Thorbjørnsen (2003)
87 moment recursion formula E ( e t Tr(X N ) ) = ψ(t) = N 1 e tx l=0 P 2 l dµ, t R differential equation GUE tψ + 3ψ t(t 2 + 4N)ψ = 0 U. Haagerup, S. Thorbjørnsen (2003) recurrence equation on moments ( E Tr ( (X N ) p ) ) = N 1 x p l=0 P 2 l dµ, p N
88 ( ap N = E Tr ( (X N ) 2p ) ), X N GUE three term recurrence equation (p + 1)a N p = (4p 2)Na N p 1 + (p 1)(2p 1)(2p 3)aN p 2 J. Harer, D. Zagier (1986)
89 ( ap N = E Tr ( (X N ) 2p ) ), X N GUE three term recurrence equation (p + 1)a N p = (4p 2)Na N p 1 + (p 1)(2p 1)(2p 3)aN p 2 J. Harer, D. Zagier (1986) map enumeration (Wick products)
90 ( ap N = E Tr ( (X N ) 2p ) ), X N GUE three term recurrence equation (p + 1)a N p = (4p 2)Na N p 1 + (p 1)(2p 1)(2p 3)aN p 2 J. Harer, D. Zagier (1986) map enumeration (Wick products) a N p = g 0 ε g (p) N p+1 2g genus series (oriented case)
91 ( ap N = E Tr ( (X N ) 2p ) ), X N GUE three term recurrence equation (p + 1)a N p = (4p 2)Na N p 1 + (p 1)(2p 1)(2p 3)aN p 2 J. Harer, D. Zagier (1986) map enumeration (Wick products) a N p = g 0 ε g (p) N p+1 2g genus series (oriented case) ε 0 (p) Catalan numbers
92 Markov operator technology similar recursion formulas for the classical orthogonal polynomial ensembles
93 Markov operator technology similar recursion formulas for the classical orthogonal polynomial ensembles continuous variable : Hermite, Laguerre, Jacobi
94 Markov operator technology similar recursion formulas for the classical orthogonal polynomial ensembles continuous variable : Hermite, Laguerre, Jacobi discrete variables : Charlier, Meixner, Krawtchouk, Hahn explicit expressions for the (factorial) moments
95 Gaussian Orthogonal Ensemble β = 1
96 Gaussian Orthogonal Ensemble β = 1 P N (dx) = 1 Z N (x) N dµ(x i ), x = (x 1,..., x N ) R N i=1 dµ(x) = e x2 /2 dx 2π
97 Gaussian Orthogonal Ensemble β = 1 P N (dx) = 1 Z N (x) N dµ(x i ), x = (x 1,..., x N ) R N i=1 dµ(x) = e x2 /2 dx 2π Pfaffian instead of determinant
98 Gaussian Orthogonal Ensemble β = 1 P N (dx) = 1 Z N (x) N dµ(x i ), x = (x 1,..., x N ) R N i=1 dµ(x) = e x2 /2 dx 2π Pfaffian instead of determinant limiting spectral distribution : Wigner semi-circle law Tracy-Widom edge asymptotics
99 moment recursion formula?
100 moment recursion formula? mean spectral measure ( E Tr ( f (X N ) )) = f (x) µ N GOE(x)dµ(x)
101 moment recursion formula? mean spectral measure ( E Tr ( f (X N ) )) = f (x) µ N GOE(x)dµ(x) P l, l N Hermite polynomials µ N GOE = N 1 Pl 2 l=0
102 moment recursion formula? mean spectral measure ( E Tr ( f (X N ) )) = f (x) µ N GOE(x)dµ(x) P l, l N Hermite polynomials µ N GOE = N 1 l=0 P 2 l + ex2 /4 P N 1 e x 2 /4 P N 1 dµ 1 N odd πn + /4 8 ex2 P N 1 sgn (x y) e x2 /4 (y)p N (y)dµ(y)
103 Markov operator tools : differential equation on the Laplace transform of the spectral measure
104 Markov operator tools : differential equation on the Laplace transform of the spectral measure b N p moment recursion formula ( = E Tr ( (X N ) 2p ) ), p N
105 Markov operator tools : differential equation on the Laplace transform of the spectral measure b N p moment recursion formula ( = E Tr ( (X N ) 2p ) ), p N recursion formula coupled with the moments a N p of the GUE b N p = (4N 2)b N p 1 + 4(2p 2)(2p 3)b N p 2 + a N p (4N 3)a N p 1 (2p 2)(2p 3)a N p 2
106 effective values a0 N = N a1 N = N 2 GUE a2 N = 2N 3 + N a3 N = 5N N 2 a N 4 = 14N N N b0 N = N b1 N = N 2 + N GOE b2 N = 2N 3 + 5N 2 + 5N b3 N = 5N N N N b4 N = 14N N N N N
107 b N p ( = E Tr ( (X N ) 2p ) ), X N GOE recursion formula coupled with the moments a N p of the GUE b N p = (4N 2)b N p 1 + 4(2p 2)(2p 3)b N p 2 + a N p (4N 3)a N p 1 (2p 2)(2p 3)a N p 2
108 b N p ( = E Tr ( (X N ) 2p ) ), X N GOE recursion formula coupled with the moments a N p of the GUE b N p = (4N 2)b N p 1 + 4(2p 2)(2p 3)b N p 2 + a N p (4N 3)a N p 1 (2p 2)(2p 3)a N p 2 b N p five term recurrence equation
109 b N p ( = E Tr ( (X N ) 2p ) ), X N GOE recursion formula coupled with the moments a N p of the GUE b N p = (4N 2)b N p 1 + 4(2p 2)(2p 3)b N p 2 + a N p (4N 3)a N p 1 (2p 2)(2p 3)a N p 2 b N p five term recurrence equation closed form : I. Goulden, D. Jackson (1997)
110 b N p ( = E Tr ( (X N ) 2p ) ), X N GOE recursion formula coupled with the moments a N p of the GUE b N p = (4N 2)b N p 1 + 4(2p 2)(2p 3)b N p 2 + a N p (4N 3)a N p 1 (2p 2)(2p 3)a N p 2 b N p five term recurrence equation closed form : I. Goulden, D. Jackson (1997) map enumeration : unoriented case
111 b N p ( = E Tr ( (X N ) 2p ) ), X N GOE recursion formula coupled with the moments a N p of the GUE b N p = (4N 2)b N p 1 + 4(2p 2)(2p 3)b N p 2 + a N p (4N 3)a N p 1 (2p 2)(2p 3)a N p 2 b N p five term recurrence equation closed form : I. Goulden, D. Jackson (1997) map enumeration : unoriented case duality with Symplectic Ensemble (β = 4)
112 recursion formulas lead to sharp moment bounds
113 recursion formulas lead to sharp moment bounds Gaussian Unitary Ensemble (GUE) three term recurrence equation
114 recursion formulas lead to sharp moment bounds Gaussian Unitary Ensemble (GUE) three term recurrence equation ( E Tr ( (X N ) 2p)) C (4N) p e Cp3 /N 2, p 3 N 2
115 recursion formulas lead to sharp moment bounds Gaussian Unitary Ensemble (GUE) three term recurrence equation ( E Tr ( (X N ) 2p)) C (4N) p e Cp3 /N 2, p 3 N 2 similar bounds for classical orthogonal polynomial ensembles (β = 2) Gaussian Orthogonal Ensemble (GOE) (β = 1)
116 non asymptotic small deviation inequalities
117 non asymptotic small deviation inequalities P ( λ N N 2 N + s N 1/6) F TW (s), s R
118 non asymptotic small deviation inequalities P ( λ N N 2 N + s N 1/6) F TW (s), s R C 1 e C s3/2 1 F TW (s) C e s3/2 /C (s )
119 non asymptotic small deviation inequalities P ( λ N N 2 N + s N 1/6) F TW (s), s R C 1 e C s3/2 1 F TW (s) C e s3/2 /C (s ) moment bounds (GUE, GOE) P ( λ N N 2 N + ε ) C e N1/4 ε 3/2 /C, 0 < ε N
120 non asymptotic small deviation inequalities P ( λ N N 2 N + s N 1/6) F TW (s), s R C 1 e C s3/2 1 F TW (s) C e s3/2 /C (s ) moment bounds (GUE, GOE) P ( λ N N 2 N + ε ) C e N1/4 ε 3/2 /C, 0 < ε N fits the Tracy-Widom asymptotics (ε = s N 1/6 )
121 non asymptotic small deviation inequalities P ( λ N N 2 N + s N 1/6) F TW (s), s R C 1 e C s3/2 1 F TW (s) C e s3/2 /C (s ) moment bounds (GUE, GOE) P ( λ N N 2 N + ε ) C e N1/4 ε 3/2 /C, 0 < ε N fits the Tracy-Widom asymptotics (ε = s N 1/6 ) deviation inequality on last passage percolation W N K. Johansson (2000)
122 moment comparison Wigner matrices (independent entries)
123 moment comparison Wigner matrices (independent entries) example : sign matrix Y N = Y N ij = ±1
124 moment comparison Wigner matrices (independent entries) example : sign matrix Y N = Y N ij = ±1 asymptotic result : Y. Sinai, A. Soshnikov ( ) P ( λ N N (Y ) 2 N + s N 1/6) F TW (s), s R
125 moment comparison Wigner matrices (independent entries) example : sign matrix Y N = Y N ij = ±1 asymptotic result : Y. Sinai, A. Soshnikov ( ) P ( λ N N (Y ) 2 N + s N 1/6) F TW (s), s R ( E Tr ( (Y N ) 2p)) ( E Tr ( (X N ) 2p)), X N GOE
126 moment comparison Wigner matrices (independent entries) example : sign matrix Y N = Y N ij = ±1 asymptotic result : Y. Sinai, A. Soshnikov ( ) P ( λ N N (Y ) 2 N + s N 1/6) F TW (s), s R ( E Tr ( (Y N ) 2p)) ( E Tr ( (X N ) 2p)), X N GOE P ( λ N N (Y ) 2 N + ε ) C e N1/4 ε 3/2 /C, 0 < ε N
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