The Work of Robert Langlands


Introduction

Robert P. Langlands was born in New Westminster, British Columbia, in 1936. He graduated from the University of British Columbia with an undergraduate degree in 1957 and an M.Sc. in 1958, and from Yale University with a Ph.D. in 1960. He has held faculty positions at Princeton University and Yale University, and is currently a Professor at the Institute for Advanced Study in Princeton New Jersey. He has won several awards recognizing his outstanding contributions to the theory of automorphic forms, among them an honorary degree from the University of British Columbia in 1985.

Looking forward to eventual publication of his collected works, Professor Langlands is cooperating with us in providing on our site a large selection from his professional correspondence and previously unpublished work, as well as an almost complete collection of all of his published work.

This material is being put into TeX at the Institute for Advanced Study in Princeton New Jersey and will appear here as it becomes ready. We would like to thank Alice Garber, Dorothea Phares, Marietta Chiorello, Elly Gustafsson, Michelle Huguenin, and Carol Warfield of the staff at the Institute, as well as Mark Goresky, for helping with this project.

The material

Inevitably, the topics into which we have organized material overlap somewhat.

Ph.D. thesis

Semi-groups and representation theory
Mathematics Department, Yale University 1960
[pdf] [ps]
Some holomorphic semi-groups
Proceedings of the National Academy of Sciences 46 1960
[pdf] [ps]
On Lie semi-groups
Canadian Journal of Mathematics 12 1960
[pdf] [ps]

Early work on the trace formula

Dimension of spaces of automorphic forms
American Journal of Mathematics 85 1963
[pdf] [ps]

Representation theory of real groups

Dimension of spaces of automorphic forms
Proceedings of the AMS Symposium at Boulder, Colorado 1965
[pdf] [ps]
On unitary representations of the Virasoro algebra
Infinite-dimensional Lie algebras and their applications, World Scientific 1988
[pdf] [ps]
The factorization of a polynomial defined by partitions
Commun. Math. Phys. 124 1989
[pdf] [ps]

Eisenstein series and automorphic forms

The volume of the fundamental domain for some arithmetical subgroups of Chevalley groups
Proceedings of the AMS Symposium at Boulder, Colorado 1965
[pdf] [ps]
Eisenstein series
Proceedings of the AMS Symposium at Boulder, Colorado 1965
[pdf] [ps]
Euler Products
Yale Mathematical Monographs 1967
[pdf] [ps]
Eisenstein series
Springer Lecture Notes 544 1965
[pdf] [ps]
On the notion of an automorphic representation
Proceedings of Symposia in Pure Mathematics XXXIII, AMS 1979
[pdf] [ps]
Rank-one residues of Eisenstein series
Israel Mathematical Conference Proceedings 3 1990
[pdf] [ps]

Functoriality

Letter to Roger Howe
1974
[pdf] [ps]
Letter to Roger Howe
1975
[pdf] [ps]
Problems in the Theory of Automorphic Forms
Lectures in modern analysis and applications III, Lecture Notes in Mathematics 170 1970
[pdf] [ps]
The representation theory of abelian algebraic groups
Pacific Journal of Mathematics 61pp231-250 1998
[pdf] [ps]
Representation theory - its rise and its role in number theory
Proceedings of the Gibbs symposium 1989
[pdf] [ps]
Where stands functoriality today?
Edinburgh conference on automorphic forms, AMS 1997
[pdf] [ps]

First tests and first consequences of functoriality

A second letter to Weil
1967
[pdf] [ps]
A long letter to Jacquet
1967
[pdf] [ps]
A collection of short letters to Jacquet
1967
[pdf] [ps]
A letter to Deligne
1967
A letter to Harish-Chandra
1967
[pdf] [ps]
A second letter to Harish-Chandra
1967
[pdf] [ps]
GL(2)
Springer 1970
[pdf] [ps]
Langlands' Notes on Artin L-functions
1970
[pdf] [ps]
On Artin's L-functions
Rice University Studies 56 1970
[pdf] [ps]
Automorphic forms on GL(2)
Actes du Congrès International des Mathématiciens 1971
[pdf] [ps]

Base change

Base change for GL(2)
Annals of Mathematics 96 1980
[pdf] [ps]
L-functions and Automorphic Representations
Proceedings of the International Congress of Mathematicians, Helsinki 1978
[pdf] [ps]

Endoscopy

L-indistinguishability for SL(2)
Canadian Journal of Mathematics 31 1979
[pdf] [ps]
Stable conjugacy-definitions and lemmas
Canadian Journal of Mathematics 31 1979
[pdf] [ps]
Les débuts d'une formule des traces stable
Publications mathématiques de l'Université Paris VII 1979
[pdf] [ps]
Orbital integrals on forms of SL(3) I
American Journal of Mathematics 105pp465-506 1983
[pdf] [ps]
On principal values on p-adic manifolds
Lie group representations II, Lecture Notes in Mathematics 41 1984
[pdf] [ps]
Orbital integrals on forms of SL(3) II
Canadian Journal of Mathematics 41pp480-507 1989
[pdf] [ps]
On the definition of transfer factors
Mathematischen Annalen 278pp219-271 1987
[ps]
Descent for transfer factors
The Grothendieck Festschrift 2pp486-563 1990
[pdf] [ps]
Remarks on Igusa theory and real orbital integrals
The zeta functions of Picard modular surfaces, Centre de Recherches Mathématiques, Montréal 1992
[pdf] [ps]
Eisenstein series, the trace formula, and the modern theory of automorphic forms
Number theory, trace formulas, and discrete groups 1987
[pdf] [ps]
Beyond endoscopy
Shalika volume, Johns Hopkins University Press 2004
[pdf] [ps]

Shimura varieties

Modular forms and l-adic representations
Modular functions of one variable II, Lecture Notes in Mathematics 349 1973
[pdf] [ps]
Some contemporary problems with origins in the Jugendtraum
Mathematical developments arising from Hilbert's problems, Proceedings of Symposia in Pure Mathematics 28 1974
[pdf] [ps]
Shimura varieties and the Selberg trace formula
Canadian Journal of Mathematics 29 1977
[pdf] [ps]
Comments on Shimura varieties and the Selberg trace formula
Canadian Mathematical Society Selecta 2 1995
[pdf] [ps]
On the zeta-functions of some simple Shimura varieties
Canadian Journal of Mathematics 31 1979
[pdf] [ps]
Automorphic representations, motives, and Shimura varieties. Ein Märchen
Proceedings of the 1977 A.M.S. conference on L functions and automorphic representations 1977
[pdf] [ps]
Sur la mauvaise réduction d'une variété de Shimura
Journées de Géométrie Algébrique de Rennes, Astérisques 65 1979
[pdf] [ps]
Algebraische Zyklen auf Hilbert-Blumenthal Flächen
Journal für die reine und angewandte Mathematik 366 1986
[pdf] [ps]
Shimuravarietäten und Gerben
Journal für die reine und angewandte Mathematik 378 1987
[pdf] [ps]
Representation theory and arithmetic
The mathematical heritage of Hermann Weyl, Proceedings of Symposia in Pure Mathematics, AMS 48 1987
[pdf] [ps]

Percolation

On the universality of crossing probabilities in two-dimensional percolation
Journal of Statistical Physics 67 1992
[pdf] [ps]
Finite Models for Percolation
Contemporary Mathematics 177 1991
[pdf] [ps]
Conformal invariance for two-dimensional percolation
Bulletin of the AMS 30 1994
[pdf] [ps]
Dualität bei endlichen Modellen der Perkolation
Mathematische Nachrichten 169 1993
[pdf] [ps]

Mathematical physics

The Dirac monopole and induced representations
Pacific Journal of Mathematics 126 1987
An essay on the dynamics and statistics of critical field theories
Canadian Mathematical Society Selecta 3 1995
[pdf] [ps]
Algebro-geometric aspects of the Bethe equations
Strings and Symmetries, Proceedings of Gürsey Memorial Conference, Istanbul 1995
Aspects combinatoires des équations de Bethe
Advances in Mathematical Sciences: CRM's 25 years 1997
Universality and conformal invariance for the Ising model in domains with boundary
Journal of Statistical Physics 98pp131-244 2000

Miscellaneous

Harish-Chandra 1923-1983
Biographical Memoirs of Fellows of the Royal Society 31 1985
Commencement address at the University of Toronto, June 1993
1993
Laudatio
on the occasion of an award to Günter Harder
Review of SL2(R) by Serge Lang
Bulletin of the American Mathematical Society 82 1976
Review of The theory of Eisenstein system by M. Scott Osborne and Garth Warner
Bulletin of the American Mathematical Society 9 1983
Review of Harish-Chandra's Collected Works
Bulletin of the London Mathematical Society 17 1985
Review of Elliptic Curves by Anthony Knapp
Bulletin of the American Mathematical Society 30 1994
Benim tanıdığım Cahit Arf (recollections of a year in Turkey with Cahit Arf)
Matematik Dünyası 2003
Descartes ile Fermat
Matematik Dünyası 2pp54-61 2005
A review of Haruzo Hida's p-adic automorphic forms on Shimura varieties,...
Bulletin of the American Mathematical Society 2006
Shaw Prize Material
    A succinct biography
   
    [pdf]
    Mathematical retrospections
   
    [pdf]
    Reflexions on receiving the Shaw prize
   
    [pdf]

Informal material


Visual material