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Geodesic


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Forum of Mathematics, Sigma
Tome 9 (2021)
Précédent Suivant


Strichartz estimates for orthonormal families of initial data and weighted oscillatory integral estimates
Neal Bez ; Sanghyuk Lee ; Shohei Nakamura

On exceptional Lie geometries
Anneleen De Schepper ; Jeroen Schillewaert ; Hendrik Van Maldeghem ; Magali Victoor

Log $\mathscr{D}$-modules and index theorems
Lei Wu ; Peng Zhou

Maps from Feigin and Odesskii's elliptic algebras to twisted homogeneous coordinate rings
Alex Chirvasitu ; Ryo Kanda ; S. Paul Smith

Verlinde formulae on complex surfaces: K-theoretic invariants
L. Göttsche ; M. Kool ; R. A. Williams

A class of continuous non-associative algebras arising from algebraic groups including $E_8$
Maurice Chayet ; Skip Garibaldi

Minimal definable graphs of definable chromatic number at least three
Raphaël Carroy ; Benjamin D. Miller ; David Schrittesser ; Zoltán Vidnyánszky

A structure theorem for stochastic processes indexed by the discrete hypercube
Pandelis Dodos ; Konstantinos Tyros

Curves on K3 surfaces in divisibility 2
Younghan Bae ; Tim-Henrik Buelles

The symplectic geometry of higher Auslander algebras: Symmetric products of disks
Tobias Dyckerhoff ; Gustavo Jasso ; Yankι Lekili

Nonspecial varieties and generalised Lang–Vojta conjectures
Erwan Rousseau ; Amos Turchet ; Julie Tzu-Yueh Wang

Smoothness of solutions of a convolution equation of restricted type on the sphere
Diogo Oliveira e Silva ; René Quilodrán

Continuous Maps from Spheres Converging to Boundaries of Convex Hulls
Joseph Malkoun ; Peter J. Olver

Global boundedness of a class of multilinear Fourier integral operators
Salvador Rodríguez-López ; David Rule ; Wolfgang Staubach

Higher rank K-theoretic Donaldson-Thomas Theory of points
Nadir Fasola ; Sergej Monavari ; Andrea T. Ricolfi

Transformations of the transfinite plane
Assaf Rinot ; Jing Zhang

Overconvergent modular forms are highest-weight vectors in the Hodge-Tate weight zero part of completed cohomology
Sean Howe

Uniqueness of optimal symplectic connections
Ruadhaí Dervan ; Lars Martin Sektnan

High-entropy dual functions over finite fields and locally decodable codes
Jop Briët ; Farrokh Labib

Extending tamely ramified strict 1-motives into két log 1-motives
Heer Zhao

The construction problem for Hodge numbers modulo an integer in positive characteristic—ERRATUM
Remy van Dobben de Bruyn ; Matthias Paulsen

Uniformly factoring weakly compact operators and parametrised dualisation
L. Antunes ; K. Beanland ; B. M. Braga

Rigid automorphisms of linking systems
George Glauberman ; Justin Lynd

The Kodaira Problem for Kähler Spaces with Vanishing First Chern Class
Patrick Graf ; Martin Schwald

The classification of symmetry protected topological phases of one-dimensional fermion systems
Chris Bourne ; Yoshiko Ogata

Fukaya categories of surfaces, spherical objects and mapping class groups
Denis Auroux ; Ivan Smith

Banach spaces for which the space of operators has 2c closed ideals
Daniel Freeman ; Thomas Schlumprecht ; András Zsák

Asymptotic expansion of low-energy excitations for weakly interacting bosons
Lea Boßmann ; Sören Petrat ; Robert Seiringer

CM liftings of $K3$ surfaces over finite fields and their applications to the Tate conjecture
Kazuhiro Ito ; Tetsushi Ito ; Teruhisa Koshikawa

The Plectic Weight Filtration on Cohomology of Shimura Varieties and Partial Frobenius
Zhiyou Wu

Pencils on Surfaces with Normal Crossings and the Kodaira Dimension of $\overline {\mathcal {M}}_{g,n}$
Daniele Agostini ; Ignacio Barros

Quasimaps and stable pairs
Henry Liu

Hodge decomposition of string topology
Yuri Berest ; Ajay C. Ramadoss ; Yining Zhang

Maximal indexes of flag varieties for spin groups
Rostislav A. Devyatov ; Nikita A. Karpenko ; Alexander S. Merkurjev

A Symmetric Function of Increasing Forests
Alex Abreu ; Antonio Nigro

Unicorn paths and hyperfiniteness for the mapping class group
Piotr Przytycki ; Marcin Sabok

Automorphic vector bundles on the stack of G-zips
Naoki Imai ; Jean-Stefan Koskivirta

On n-dependent groups and fields II
Artem Chernikov ; Nadja Hempel

The effective Shafarevich conjecture for abelian varieties of ${\text {GL}_{2}}$-type
Rafael von Känel

Hyperbolic tessellations and generators of ${K}_{\textbf {3}}$ for imaginary quadratic fields
David Burns ; Rob de Jeu ; Herbert Gangl ; Alexander D. Rahm ; Dan Yasaki

Skew characters and cyclic sieving
Per Alexandersson ; Stephan Pfannerer ; Martin Rubey ; Joakim Uhlin

Beilinson–Drinfeld Schubert varieties and global Demazure modules
Ilya Dumanski ; Evgeny Feigin ; Michael Finkelberg

The moduli space of Harnack curves in toric surfaces
Jorge Alberto Olarte

Equipartition principle for Wigner matrices
Zhigang Bao ; László Erdős ; Kevin Schnelli

Noncommutative strong maximals and almost uniform convergence in several directions – Addendum
José M. Conde-Alonso ; Adrián M. González-Pérez ; Javier Parcet

More on zeros and approximation of the Ising partition function
Alexander Barvinok ; Nicholas Barvinok

An orthogonality relation for $\mathrm {GL}(4, \mathbb R) $ (with an appendix by Bingrong Huang)
Dorian Goldfeld ; Eric Stade ; Michael Woodbury

An approach to Quillen’s conjecture via centralisers of simple groups
Kevin Iván Piterman

Counterexamples to Hochschild-Kostant-Rosenberg in characteristic p
Benjamin Antieau ; Bhargav Bhatt ; Akhil Mathew

P = W for Lagrangian fibrations and degenerations of hyper-Kähler manifolds
Andrew Harder ; Zhiyuan Li ; Junliang Shen ; Qizheng Yin

Inverse K-Chevalley formulas for semi-infinite flag manifolds, I: minuscule weights in ADE type
Takafumi Kouno ; Satoshi Naito ; Daniel Orr ; Daisuke Sagaki

Annihilator varieties of distinguished modules of reductive Lie algebras
Dmitry Gourevitch ; Eitan Sayag ; Ido Karshon

Symmetry of Narayana Numbers and Rowvacuation of Root Posets
Colin Defant ; Sam Hopkins

Fano-type surfaces with large cyclic automorphisms
Joaquín Moraga

All finite sets are Ramsey in the maximum norm
Andrey Kupavskii ; Arsenii Sagdeev

Quasimaps to GIT fibre bundles and applications
Jeongseok Oh

Primary decomposition in the smooth concordance group of topologically slice knots
Jae Choon Cha

Non-existence of bi-infinite geodesics in the exponential corner growth model – Corrigendum
Márton Balázs ; Ofer Busani ; Timo Seppäläinen

Zarankiewicz’s problem for semilinear hypergraphs
Abdul Basit ; Artem Chernikov ; Sergei Starchenko ; Terence Tao ; Chieu-Minh Tran

Soliton Decomposition of the Box-Ball System
Pablo A. Ferrari ; Chi Nguyen ; Leonardo T. Rolla ; Minmin Wang

Hilbert’s 17th problem in free skew fields
Jurij Volčič

An incompressibility theorem for automatic complexity
Bjørn Kjos-Hanssen

Extensions of homomorphisms between localities
Ellen Henke

Brauer groups of moduli of hyperelliptic curves via cohomological invariants
Andrea Di Lorenzo ; Roberto Pirisi

Three candidate plurality is stablest for small correlations
Steven Heilman ; Alex Tarter

Cluster Structures on Double Bott–Samelson Cells
Linhui Shen ; Daping Weng

Defining relations of quantum symmetric pair coideal subalgebras
Stefan Kolb ; Milen Yakimov

An algebraic treatment of the Askey biorthogonal polynomials on the unit circle
Luc Vinet ; Alexei Zhedanov

Nonvanishing for cubic L-functions
Chantal David ; Alexandra Florea ; Matilde Lalin

Geometric vertex decomposition and liaison
Patricia Klein ; Jenna Rajchgot

A homotopy exact sequence for overconvergent isocrystals
Christopher Lazda ; Ambrus Pál

Squarefree Integers in Arithmetic Progressions to Smooth Moduli
Alexander P. Mangerel

Spaces of Lorentzian and real stable polynomials are Euclidean balls
Petter Brändén

A new second-order upper bound for the ground state energy of dilute Bose gases
Giulia Basti ; Serena Cenatiempo ; Benjamin Schlein

On the Tits–Weiss conjecture and the Kneser–Tits conjecture for $\mathrm {E}^{78}_{7,1}$ and $\mathrm {E}^{78}_{8,2}$ (With an Appendix by R. M. Weiss)
Seidon Alsaody ; Vladimir Chernousov ; Arturo Pianzola

Topology of random $2$-dimensional cubical complexes
Matthew Kahle ; Elliot Paquette ; Érika Roldán

From curves to currents
Dídac Martínez-Granado ; Dylan P. Thurston

Arquile Varieties – Varieties Consisting of Power Series in a Single Variable
Herwig Hauser ; Sebastian Woblistin

The commutative nonassociative algebra of metric curvature tensors
Daniel J. F. Fox

Finiteness properties of the category of mod p representations of ${\textrm {GL}}_2 (\mathbb {Q}_{p})$
Vytautas Paškūnas ; Shen-Ning Tung

Dieudonné theory via cohomology of classifying stacks
Shubhodip Mondal
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