Mathematics

Authors and titles for April 2004

[501] arXiv:math/0404421 [pdf, other]

Title: On squares of spaces and Fsigma-sets

Arnold W. Miller

Comments: 6 pages

Subjects: Logic (math.LO); General Topology (math.GN)

[502] arXiv:math/0404422 [pdf, other]

Title: Stable and singular solutions of the equation $\Delta u = 1/u$

Alexander M. Meadows

Comments: 20 pages, no figures

Subjects: Analysis of PDEs (math.AP)

[503] arXiv:math/0404423 [pdf, other]

Title: Non-minimal scalar-flat Kaehler surfaces and parabolic stability

Yann Rollin (MIT), Michael A. Singer (University of Edinburgh)

Comments: Final version, 30 pages, the appendix has been suppressed and will appear elsewhere, to be published in Inventiones Mathematicae

Journal-ref: Inventiones Mathematicae, vol 162 (2005) p237-270

Subjects: Differential Geometry (math.DG); Algebraic Geometry (math.AG)

[504] arXiv:math/0404424 [pdf, other]

Title: Convergence of Rothe's method for fully nonlinear parabolic equations

I. Blank, P. Smith

Comments: 13 pages, 1 figure, latex

Subjects: Analysis of PDEs (math.AP); Numerical Analysis (math.NA)

[505] arXiv:math/0404425 [pdf, other]

Title: Weil-etale cohomology over finite fields

Thomas H. Geisser

Comments: Revised version

Subjects: Number Theory (math.NT); Algebraic Geometry (math.AG)

[506] arXiv:math/0404426 [pdf, other]

Title: Isometry groups of Lobachevskian spaces, similarity transformation groups of Euclidean spaces and Lorentzian holonomy groups

Anton S. Galaev

Comments: 12 pages

Journal-ref: Rend. Circ. Mat. Palermo (2) Suppl. No. 79 (2006) 87--97

Subjects: Differential Geometry (math.DG)

[507] arXiv:math/0404427 [pdf, other]

Title: Infinite products in number theory and geometry

Jan Hendrik Bruinier

Comments: 34 pages, to appear in Jahresber. Dtsch. Math. Ver

Subjects: Number Theory (math.NT); Algebraic Geometry (math.AG)

[508] arXiv:math/0404428 [pdf, other]

Title: Common fixed points of commutative semigroups of nonexpansive mappings

T. Suzuki

Comments: 18 pages

Subjects: Functional Analysis (math.FA)

[509] arXiv:math/0404429 [pdf, other]

Title: Moduli Stacks of Vector Bundles and Frobenius Morphisms

Frank Neumann, Ulrich Stuhler

Comments: 19 pages

Subjects: Algebraic Geometry (math.AG); Number Theory (math.NT)

[510] arXiv:math/0404430 [pdf, other]

Title: Shelling and triangulating the (extra)ordinary polytope

Margaret M. Bayer

Comments: 27 pages

Subjects: Combinatorics (math.CO)

[511] arXiv:math/0404431 [pdf, other]

Title: Generalised Euler characteristics of Selmer groups

Sarah Livia Zerbes

Comments: 23 pages, much updated and reorganised

Journal-ref: Proc. London Math. Soc. 98(3), 2009, p. 775-796

Subjects: Number Theory (math.NT)

[512] arXiv:math/0404432 [pdf, other]

Title: On the Tweety Penguin Triangle Problem

Jean Dezert, Florentin Smarandache

Comments: 16 pages

Subjects: General Mathematics (math.GM)

[513] arXiv:math/0404433 [pdf, other]

Title: Hausdorff dimension of the set of nonergodic directions (with an appendix by M. Boshernitzan)

Yitwah Cheung

Comments: 18 pages published version

Journal-ref: Ann. of Math. (2), Vol. 158 (2003), no. 2, 661--678

Subjects: Dynamical Systems (math.DS); Number Theory (math.NT)

[514] arXiv:math/0404434 [pdf, other]

Title: Conformal de Rham decomposition of Riemannian manifolds

Ruy Tojeiro

Comments: 17 pages

Subjects: Differential Geometry (math.DG)

[515] arXiv:math/0404435 [pdf, other]

Title: Modified Rayleigh Conjecture for scattering by periodic structures

A.G.Ramm, S.Gutman

Subjects: Numerical Analysis (math.NA)

[516] arXiv:math/0404436 [pdf, other]

Title: Dynamical systems method (DSM) for unbounded operators

A.G.Ramm

Subjects: Functional Analysis (math.FA)

[517] arXiv:math/0404437 [pdf, other]

Title: Dynamical systems method for solving nonlinear equations with non-smooth monotone operators

A.G.Ramm

Subjects: Functional Analysis (math.FA)

[518] arXiv:math/0404438 [pdf, other]

Title: Shuffling by semi-random transpositions

Elchanan Mossel, Yuval Peres, Alistair Sinclair

Subjects: Probability (math.PR); Combinatorics (math.CO)

[519] arXiv:math/0404439 [pdf, other]

Title: Paley-Wiener theorems for the Dunkl transform

Marcel de Jeu

Comments: LaTeX, 26 pages, no figures. References updated and minor changes, mathematically identical to the first version. To appear in Trans. Amer. Math. Soc

Journal-ref: Trans. Amer. Math. Soc. 358 (2006), 4225--4250

Subjects: Classical Analysis and ODEs (math.CA); Representation Theory (math.RT)

[520] arXiv:math/0404440 [pdf, other]

Title: Limits of (certain) CAT(0) groups, I: Compactification

Daniel Groves

Comments: Published by Algebraic and Geometric Topology at this http URL

Journal-ref: Algebr. Geom. Topol. 5 (2005) 1325-1364

Subjects: Group Theory (math.GR)

[521] arXiv:math/0404441 [pdf, other]

Title: Ascending Chain Conditions in Free Baxter Algebras

Li Guo

Comments: 22 pages. No figures

Journal-ref: International Journal of Algebra and Computation. 12 (2002), no. 4, 601-622

Subjects: Commutative Algebra (math.AC); Combinatorics (math.CO); Rings and Algebras (math.RA)

[522] arXiv:math/0404442 [pdf, other]

Title: Singular value decomposition for the 2D fan-beam Radon transform of tensor fields

Sergey G. Kazantsev, Alexandre A. Bukhgeim

Comments: LaTeX, 37 pages with 5 figures

Journal-ref: Journal of Inverse and Ill-Posed Problems, 2004, Vol. 12, No.3, pp. 245-278.

Subjects: Complex Variables (math.CV); Mathematical Physics (math-ph)

[523] arXiv:math/0404443 [pdf, other]

Title: The discrete Gelfand transform and its dual

V. Buchstaber, A.Lazarev

Subjects: Commutative Algebra (math.AC); Algebraic Topology (math.AT)

[524] arXiv:math/0404444 [pdf, other]

Title: Unbounded operators on Banach spaces over the quaternion field

S.V. Ludkovsky

Comments: 20 pages

Journal-ref: 2007, Hypercomplex Numbers in Geometry and Physics, V. 4: 1 (7)

Subjects: Operator Algebras (math.OA); Spectral Theory (math.SP)

[525] arXiv:math/0404445 [pdf, other]

Title: Commensurations of the Johnson kernel

Tara E Brendle, Dan Margalit

Comments: Published by Geometry and Topology at this http URL

Journal-ref: Geom. Topol. 8 (2004) 1361-1384

Subjects: Geometric Topology (math.GT); Group Theory (math.GR)

[526] arXiv:math/0404446 [pdf, other]

Title: Quantum cluster algebras

Arkady Berenstein, Andrei Zelevinsky

Comments: Minor corrections; final version, to appear in Advances in Mathematics; 41 pages

Subjects: Quantum Algebra (math.QA); Algebraic Geometry (math.AG); Representation Theory (math.RT)

[527] arXiv:math/0404447 [pdf, other]

Title: Indifference pricing and hedging in stochastic volatility models

M. R. Grasselli, T. R. Hurd

Subjects: Probability (math.PR); Optimization and Control (math.OC); Pricing of Securities (q-fin.PR)

[528] arXiv:math/0404448 [pdf, other]

Title: Singular cubic fourfolds containing a plane

Paolo Stellari

Comments: 19 pages. Exposition improved but no new results added to the previous version. Final version to appear in Le Matematiche

Subjects: Algebraic Geometry (math.AG)

[529] arXiv:math/0404449 [pdf, other]

Title: Principal bundles with groupoid structure: local vs. global theory and nonabelian \u{c}ech cohomology

C. A. Rossi

Comments: 97 pages; mostly a review, but up to Section 4 there are some (as far as I know) new results, which I personally did not find anywhere else, or I found in a different shape

Subjects: Differential Geometry (math.DG); Mathematical Physics (math-ph)

[530] arXiv:math/0404450 [pdf, other]

Title: Periodic nonlinear Schr\"odinger equation with application to photonic crystals

A. Pankov

Subjects: Analysis of PDEs (math.AP); Mathematical Physics (math-ph)

[531] arXiv:math/0404451 [pdf, other]

Title: Generalized complex structures on nilmanifolds

Gil R. Cavalcanti, Marco Gualtieri

Comments: 16 pages

Journal-ref: J. Symplectic Geom. 2 (2004), no. 3, 393--410

Subjects: Differential Geometry (math.DG); Symplectic Geometry (math.SG)

[532] arXiv:math/0404452 [pdf, other]

Title: Sextic Double Solids

Ivan Cheltsov, Jihun Park

Comments: 53 pages

Subjects: Algebraic Geometry (math.AG); Number Theory (math.NT)

[533] arXiv:math/0404453 [pdf, other]

Title: Symplectic desingularization of moduli space of sheaves on a K3 surface

Young-Hoon Kiem

Subjects: Algebraic Geometry (math.AG)

[534] arXiv:math/0404454 [pdf, other]

Title: Le lemme fondamental pour les groupes unitaires

G. Laumon, B. C. Ngo

Comments: 99 pages, Plain TeX file. New propositions 2.5.2 and 2.8.4. New lemma 3.2.5. Section (3.4) completely rewritten. Argument on pages 84-85 corrected. Chapter 3 simplified by restricting to the case I={1,2}. References [Fal], [F-G-S] and [Hal] added. Minor additional changes

Subjects: Algebraic Geometry (math.AG); Representation Theory (math.RT)

[535] arXiv:math/0404455 [pdf, other]

Title: Volume renormalization for complete Einstein--K\"ahler metrics

Neil Seshadri

Comments: Minor corrections to the statements and proofs of the main theorem and corollary. Included the example of the Bergman metric on the ball. To appear in Differential Geometry and Its Applications

Journal-ref: Diff. Geom. Appl. 25 (2007) 356--379

Subjects: Differential Geometry (math.DG)

[536] arXiv:math/0404456 [pdf, other]

Title: Counting rational points on hypersurfaces

T.D. Browning, D.R. Heath-Brown

Comments: 30 pages

Subjects: Number Theory (math.NT)

[537] arXiv:math/0404457 [pdf, other]

Title: On the Lie envelopping algebra of a pre-Lie algebra

Jean-Michel Oudom, Daniel Guin

Subjects: Quantum Algebra (math.QA)

[538] arXiv:math/0404458 [pdf, other]

Title: A non-commutative, analytic version of Hilbert's 17-th problem in type II$_1$ von Neumann algebras

Florin Radulescu

Comments: Some minor misprints were corrected

Subjects: Operator Algebras (math.OA)

[539] arXiv:math/0404459 [pdf, other]

Title: The Coxeter quotient of the fundamental group of a Galois cover of T \times T

Amram Meirav, Mina Teicher, Uzi Vishne

Comments: 25 pp

Subjects: Algebraic Geometry (math.AG); Group Theory (math.GR)

[540] arXiv:math/0404460 [pdf, other]

Title: Logarithmic Sobolev Inequality for Zero-Range Dynamics: independence of the number of particles

Paolo Dai Pra, Gustavo Posta

Journal-ref: Electron. J. Probab. 10 (2005), no. 15, 525-576

Subjects: Probability (math.PR); Mathematical Physics (math-ph)

[541] arXiv:math/0404461 [pdf, other]

Title: A combinatorial approach to the set-theoretic solutions of the Yang-Baxter equation

Tatiana Gateva-Ivanova

Comments: 34 pages

Subjects: Quantum Algebra (math.QA); Representation Theory (math.RT)

[542] arXiv:math/0404462 [pdf, other]

Title: Asymptotic and Lyapunov stability of Poisson equilibria

Juan-Pablo Ortega, Víctor Planas-Bielsa, Tudor S. Ratiu

Comments: 23 pages, 2 figures

Subjects: Dynamical Systems (math.DS); Symplectic Geometry (math.SG)

[543] arXiv:math/0404463 [pdf, other]

Title: Transcendental submanifolds of RP^n

Selman Akbulut, Henry King

Comments: 5 pages, 1 figure

Subjects: Algebraic Geometry (math.AG); Geometric Topology (math.GT)

[544] arXiv:math/0404464 [pdf, other]

Title: On arithmetical and dynamical properties of Lorentz maps of the torus

S.Aranson, E.Zhuzhoma

Subjects: Dynamical Systems (math.DS)

[545] arXiv:math/0404465 [pdf, other]

Title: Triangulated Manifolds with Few Vertices: Centrally Symmetric Spheres and Products of Spheres

Frank H. Lutz

Comments: 26 pages, 8 figures

Subjects: Metric Geometry (math.MG); Combinatorics (math.CO)

[546] arXiv:math/0404466 [pdf, other]

Title: Universal operator algebras of directed graphs

Benton L. Duncan

Comments: 19 pages, uses xypic, submitted to Houston Journal of Mathematics

Journal-ref: Houston J. Math, Vol.31 (2005), no. 4, 1179-1198.

Subjects: Operator Algebras (math.OA); Commutative Algebra (math.AC)

[547] arXiv:math/0404467 [pdf, other]

Title: Generating Functions of Random Walks on Graphs

Vadim Kostrykin, Robert Schrader

Comments: Uses epic and eepic styles

Subjects: Combinatorics (math.CO); Mathematical Physics (math-ph)

[548] arXiv:math/0404468 [pdf, other]

Title: Reflection positivity, rank connectivity, and homomorphism of graphs

M. Freedman (Microsoft Research), L. Lovasz (Microsoft Research), A. Schrijver (CWI Amsterdam)

Comments: 17 pages Latex

Subjects: Combinatorics (math.CO); Mathematical Physics (math-ph)

[549] arXiv:math/0404469 [pdf, other]

Title: Monodromy of a family of hypersurfaces containing a given subvariety

Ania Otwinowska, Morihiko Saito

Comments: 23 pages, minor changes

Subjects: Algebraic Geometry (math.AG)

[550] arXiv:math/0404470 [pdf, other]

Title: Cofree coalgebras over operads II Homology invariance

Justin R. Smith

Subjects: Algebraic Topology (math.AT); Category Theory (math.CT)