Welcome to Laurent
Saloff-Coste's web
page (last updated December 2008)
Bienvenue!
Laurent
Saloff-Coste
Professor and Chair, Department of Mathematics, Cornell University
mail address: Department of Mathematics,
Cornell University, Malott Hall, Ithaca, NY, 14853-4201, USA
email: lsc (at) math.cornell.edu
phone: (607) 255 7241
fax: (607) 255 7149
office: 567, Malott Hall
Rollo Davidson award,
1994
Guggenheim fellow, 2006/07
Berlin-SPA July
2009: Merging and stability for time
inhomogeneous Markov chains (joint work with J. Zuniga) : extended
version in pdf here
Nice June
2009: Analysis on compact groups, text
to appear in Colloquium Mathematicum (volune in Honor of A.
Hulanicki) click here
First MSJ-SI,
August 2008, Kyoto: The text of my talks, in pdf
format is available here
CMS 2008 Winter
Meeting, Ottawa: The slides of my talk, in pdf
format are available here
travel
Editorial
activities:
Teaching:
Research interests:
- Random walks on groups.
- Analysis and potential theory on
manifolds. Heat equation, heat diffusion and heat kernel.
- Analysis and potential
theory on Lie groups and locally compact groups.
Convolution semigroups.
- Dirichlet forms. Associated Markov
processes and geometries.
- Finite Markov chains. Quantitative
analysis of ergodic Markov chains.
Research supported in part by NSF
grant DMS-0603886
Selected surveys:
- Probability on groups: Random walks and
invariant diffusions, Notices of the American Mathematical
Society. pdf-file
- Random walks on finite
groups.
Probability on discrete structures, 263--346, Encyclopaedia
Math. Sci., 110, Springer, Berlin, 2004. Harry Kesten,
Editor. pdf file
- Analysis on Riemannian
co-compact covers. Surveys in differential geometry. Vol.
IX, 351--384, Surv.
Differ. Geom., IX, Int. Press, pdf file
- The heat kernel and its
estimates. (1st MJS-SI) Advanced Studies in Pure Mathematics,
2009. pdf file
- Sobolev Inequalities in
Familiar and Unfamilar settings. Sobolev Spaces in
Matehmatics I, International
Series in Mathematics , Springer, Berlin 2009, Vladimir
Maz'ya, Editor. pdf file
- Central Gaussian
convolution semigroups on compact groups: asurveys. Infinite Dimensional
Analysis, Quantum Probability and Related Topics 6, 2003. With A.
Bendikov. pdf file
- Brownian motion on
compact groups in infinite diomension. Heat
kernels and
analysis on manifolds, graphs, and metric
spaces (Paris, 2002), 41--63, Contemp.
Math., 338, Amer. Math. Soc., Providence, RI, 2003. With
A. Bendikov. pdf.file
Selected
recent Publications:
Analysis on locally compact groups
and homogeneous spaces
- Spaces of smooth
functions and distributions on infinite-dimensional compact groups.
J. Funct. Anal. 218 (2005), 168--218, with A. Bendikov.
- Transition
operators on co-compact $G$-spaces. Revista Matematica
Iberoamericana 22 (2006), 747--799. With W. Woess. pdf file
- Connected
Lie groups and property RD. Duke
Mathematical Journal 137 (2007), 511--536. With I. Chatterji and C.
Pittet. pdf file
- Computations of spectral
radii on G-spaces. Contemporary Mathematics
(Conference on the occasion
of Prof. Sunada's 60th birthday , Nagoya 2007). With W.
Woess. pdf file
- Holomorphic functions and
subelliptic heat kernels over Lie groups. To appear in J. Europ. Math. Soc. With B.
Driver and L. Gross. pdf file
- Surjectivity of the
Taylor map for complex nilpotent Lie groups. Math. Proc. Camb.
Phil. Soc. 146 (2008) 177-195. With B. Driver and L. Gross. pdf file
- Growth of Taylor coefficients over complex homogeneous spaces. Submitted. With B. Driver and L. Gross. pdf file
- Sobolev inequalities in
familiar and unfamiliar settings. In
``Sobolev Spaces in Mathematics I, International Mathematical
Series, Volume 8, Springer, (V. Maz'ya, Ed.). pdf file
- Pseudo-Poincar\'e Inequalities and
Applications to Sobolev Inequalities. Volume in honor of V. Maz'ya,
International Mathematical Series, Springer, (A. Laptev, Ed.) . pdf file
Dirichlet forms and Markov semigroups
- On the regularity of
sample paths of sub-elliptic diffusions on manifolds, Osaka J.
Math. 42 (2005), 677--722, with A. Bendikov. pdf
file
- Ultracontractivity
and embedding into $L\sp \infty$.
Mathematischen Annalen 337 (2007), 817--853. With A. Bendikov and T.
Coulhon. pdf file
- Small time heat kernel behavior on
Riemannian complexes. New York
Journal of Mathematics 4 (2008) 1-37. pdf file
Potential theory and heat
diffusion on manifolds and domains
- Stability results for Harnack
inequalities, Ann. Inst. Fourier 55 (2005), 825--890, with A.
Grigor'yan. zipped.ps-file
- Heat kernel on manifolds
with ends, Ann. Inst.
Fourier, to appear, with A.
Grigor'yan. pdf file
- Neumann and Dirichlet Heat kernels
in Inner Uniform Domains, with P.
Gyrya. pdf file
Finite Markov chains
- Cut-offs
for birth and death chains. The Annals of Applied Probability 16
(2006), 2098--2122. With P. Diaconis. pdf file
- Gibbs Sampling, Exponential Families
and Orthogonal Polynomials. Statistical
Science 23 (2008), 151-173. With P. Diaconis
and K. Khare. pdf file
- Convergence of some time
inhomogeneous Markov chains via spectral techniques, Stochastic
Processes and their Applications
Volume
117, Pages 961-979. With
J. Zuniga. pdf file
- Refined estimates for some basic
random walks on the symmetric and alternating groups. Alea 4 (2008) 359-392. pdf file
- The cutoff Phenomenon for randomized
riffle shuffles. Random Structures
and Algorithms 32 (2008) 349--374. With G.Y. Chen. pdf file
- The cutoff phenomenon
for ergodic Markov processes. Electronic
Journal of Probability 13 (2008) 26--78. With G.Y. Chen. pdf file
Other
publications: click here
List of publications:
click here
Preprints:
- A survey on the relationships between
volume growth, isoperimetry, and the behavior of simple random walk on
Cayley graphs, with examples, with C. Pittet . This is an unfinished manuscript (we still hope to
finish it!). Here is the zipped.ps-file
of the present
version. It will not be updated until the final version is ready.
Former graduate
Students:
- Andrzej Zuk (December 1996, Toulouse) Sur certaines
propriétés spectrales du Laplacien sur les graphes. webpage
- Pascal Lezaud (March 1998, Toulouse) Sur les déviations de la
moyenne empirique le long d'une trajectoire d'une chaine de
Markov. webpage
- Sandrine Roussel (June 1999, Toulouse) Marches
aléatoires sur le groupe symétrique.
- Sebastien Blachère (December 2000, Toulouse)
Agrégation limitée par diffusion interne et temps de
coupure sur les groupes discrets à coissance polynomiale. webpage
- David Revelle (June 2002, Cornell) Random walks on solvable
groups.
- Lee
Gibson (June 2005, Cornell) The number of sites visited by
a random walk on an infinite graph. webpage
- Sharad
Goel (June 2005, Cornell) Estimating mixing times: techniques
and applications. webpage
- Guan-Yu
Chen (June 2006, Cornell) The cut-off phenomenon for
finite Markov chains. webpage
- Melanie
Pivarski (July 2006, Cornell) Heat kernels on Euclidean
complexes. webpage
- Evgeniy
Klebanov (October 2006, Cornell) Asymptotic behavior of
convolutions of centered density on Lie groups of polynomial volume
growth .
- Pavel
Gyrya (June 2007, Cornell) Heat kernel estimates for inner
uniform subsets of Harnack-type Dirichlet spaces.
- Jessica
Zuniga (June 2008, Cornell) Merging of some time homogeneous and
inhomogeneous Markov chains.