Mathematics

Authors and titles for March 2007

[601] arXiv:math/0703471 [pdf, other]

Title: Bicrossed products for finite groups

A.L. Agore, A. Chirvasitu, B. Ion, G. Militaru

Comments: Final version: to appear in Algebras and Representation Theory

Journal-ref: Algebras and Representation Theory, 12(2009), 481-488

Subjects: Group Theory (math.GR); Rings and Algebras (math.RA)

[602] arXiv:math/0703472 [pdf, other]

Title: Einstein solvmanifolds are standard

Jorge Lauret

Comments: 15 pages, final version to appear in Ann. of Math

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

[603] arXiv:math/0703473 [pdf, other]

Title: Exceptional points in the elliptic-hyperelliptic locus

Ewa Tyszkowska, Anthony Weaver

Comments: 23 pages; shortened for publication

Journal-ref: Journal of Pure and Applied Algebra 212 (2008) 1415-1426

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

[604] arXiv:math/0703474 [pdf, other]

Title: Distance of Heegaard splittings of knot complements

Maggy Tomova

Comments: References added, exposition slightly improved, 17 pages, 3 figures

Subjects: Geometric Topology (math.GT)

[605] arXiv:math/0703475 [pdf, other]

Title: Constructing subdivision rules from rational maps

J.W. Cannon, W. J. Floyd, W. R. Parry

Comments: 10 pages

Subjects: Dynamical Systems (math.DS)

[606] arXiv:math/0703476 [pdf, other]

Title: A note on the q-Genocchi numbers and polynomials

Taekyun Kim

Comments: 8 pages

Subjects: Number Theory (math.NT)

[607] arXiv:math/0703477 [pdf, other]

Title: Theories with EF-Equivalent Non-Isomorphic Models

Saharon Shelah

Subjects: Logic (math.LO)

[608] arXiv:math/0703478 [pdf, other]

Title: On a new approach to the dual symmetric inverse monoid $I*_X$

Victor Maltcev

Comments: 29 pages, 4 figures

Subjects: Group Theory (math.GR)

[609] arXiv:math/0703479 [pdf, other]

Title: Bimahonian distributions

Helene Barcelo, Victor Reiner, Dennis Stanton

Comments: Final version to appear in J. London Math. Soc

Subjects: Combinatorics (math.CO)

[610] arXiv:math/0703480 [pdf, other]

Title: Constructing infinitely many smooth structures on small 4-manifolds

Anar Akhmedov, R. Inanc Baykur, B. Doug Park

Comments: 23 pages, 3 figures

Subjects: Geometric Topology (math.GT); Symplectic Geometry (math.SG)

[611] arXiv:math/0703481 [pdf, other]

Title: On discrete time hedging in d-dimensional option pricing models

Mika Hujo

Subjects: Probability (math.PR)

[612] arXiv:math/0703482 [pdf, other]

Title: Fixed points of zircon automorphisms

Axel Hultman

Comments: 5 pages

Subjects: Combinatorics (math.CO)

[613] arXiv:math/0703483 [pdf, other]

Title: Automatic Discovery of Geometry Theorems Using Minimal Canonical Comprehensive Groebner Systems

Antonio Montes, Tomas Recio

Comments: 25 pages, 8 figures

Subjects: Algebraic Geometry (math.AG)

[614] arXiv:math/0703484 [pdf, other]

Title: Solvability of Backward Stochastic Differential Equations with Quadratic Growth

Revaz Tevzadze

Comments: 15 pages

Subjects: Probability (math.PR)

[615] arXiv:math/0703485 [pdf, other]

Title: Large Cyclic Subgroups of Jacobians of Hyperelliptic Curves

Christian Robenhagen Ravnshoj

Comments: 8 pages, 1 figure

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

[616] arXiv:math/0703486 [pdf, other]

Title: K\"ahler-Ricci flow on a toric manifold with positive first Chern class

Xiaohua Zhu

Subjects: Differential Geometry (math.DG); Analysis of PDEs (math.AP)

[617] arXiv:math/0703487 [pdf, other]

Title: A positivity conjecture for Jack polynomials

Michel Lassalle (CNRS, Marne la Vallee, France)

Comments: 24 pages, LaTeX

Journal-ref: Mathematical Research Letters 15 (2008), 661-681.

Subjects: Combinatorics (math.CO)

[618] arXiv:math/0703488 [pdf, other]

Title: Stable Calabi-Yau dimension for finite type selfinjective algebras

Thorsten Holm, Peter Jorgensen

Comments: The paper has been withdrawn since the results have been incorporated into arXiv:math/0610728v2

Subjects: Representation Theory (math.RT)

[619] arXiv:math/0703489 [pdf, other]

Title: On Weighted Residual and Past Entropies

Antonio Di Crescenzo, Maria Longobardi

Comments: 13 pages; updated on June 21, 2011

Journal-ref: Sci. Math. Jpn. 64 (2006), no. 2, 255-266

Subjects: Statistics Theory (math.ST)

[620] arXiv:math/0703490 [pdf, other]

Title: On the Group of Polynomial Functions in a Group

G. Endimioni

Comments: 9 pages

Subjects: Group Theory (math.GR)

[621] arXiv:math/0703491 [pdf, other]

Title: Smoothness of Algebraic Supervarieties and Supergroups

R. Fioresi

Subjects: Rings and Algebras (math.RA); Mathematical Physics (math-ph)

[622] arXiv:math/0703492 [pdf, other]

Title: On some special directed last-passage percolation models

Kurt Johansson

Comments: 14 pages

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

[623] arXiv:math/0703493 [pdf, other]

Title: Reflexive abelian groups and measurable cardinals and saturated MAD families

Saharon Shelah

Subjects: Logic (math.LO); Group Theory (math.GR)

[624] arXiv:math/0703494 [pdf, other]

Title: A New Optimum Tuning Method of PI Controllers in First-Order Time-Delay Systems

Gianpasquale Martelli

Comments: AMS-LaTeX version 2.20, 11 pages with 4 figures; corrected typos

Subjects: Optimization and Control (math.OC)

[625] arXiv:math/0703495 [pdf, other]

Title: Continuous and discrete Clebsch variational principles

C. J. Cotter, D. D. Holm

Subjects: Dynamical Systems (math.DS); Exactly Solvable and Integrable Systems (nlin.SI)

[626] arXiv:math/0703496 [pdf, other]

Title: A global view of equivariant vector bundles and Dirac operators on some compact homogeneous spaces

Marc A. Rieffel (U. C. Berkeley)

Comments: 20 pages. An error in the proof of theorem 8.4 of the published version is corrected, resulting also in a stronger theorem. A few minor improvements elsewhere

Journal-ref: Contemporary Math. 449 (2008), 399-415

Subjects: Differential Geometry (math.DG); Operator Algebras (math.OA)

[627] arXiv:math/0703497 [pdf, other]

Title: On some nonlinear partial differential equations involving the 1-Laplacian

Mouna Kraiem (AGM)

Comments: 16pages

Subjects: Analysis of PDEs (math.AP)

[628] arXiv:math/0703498 [pdf, other]

Title: On Nichols algebras over SL(2,Fq) and GL(2,Fq)

S. Freyre, M. Graña, L. Vendramin

Comments: Major exposition revision, including referees remarks. To appear in J. Math. Phys. 13 pages

Journal-ref: J. Math. Phys. 48, 123513 (2007)

Subjects: Quantum Algebra (math.QA)

[629] arXiv:math/0703499 [pdf, other]

Title: Explicit generators for (conjectural) mixed motives (in Voevodsky's $\dmge$). The Kunneth decomposition of pure (numerical) motives

M.V. Bondarko

Comments: New very explicit mixed (conjecturally) motives in Voevodsky's $DM$!

Subjects: Algebraic Geometry (math.AG)

[630] arXiv:math/0703500 [pdf, other]

Title: Space Propagation of Instabilities in Zakharov Equations

Guy Metivier (IMB)

Comments: 39 p

Subjects: Analysis of PDEs (math.AP)

[631] arXiv:math/0703501 [pdf, other]

Title: Some examples of toric Sasaki-Einstein manifolds

Craig van Coevering

Comments: Some minor editing made. Invited contribution to "Riemannian Topology and Geometric Structures on Manifolds", Birkhäuser 2008

Journal-ref: Progress in Mathematics, vol. 271, Riemannian Topology and Geometric Structures on Manifolds, 2009

Subjects: Differential Geometry (math.DG)

[632] arXiv:math/0703502 [pdf, other]

Title: Sur la conjecture abc, version corps de fonctions d'Oesterle

Frederic Campana

Comments: this http URL already known by results of McQuillan and K. Yamanoi

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

[633] arXiv:math/0703503 [pdf, other]

Title: The Littlewood-Offord Problem and invertibility of random matrices

Mark Rudelson, Roman Vershynin

Comments: Introduction restructured, some typos and minor errors corrected

Journal-ref: Advances in Mathematics 218 (2008), 600--633

Subjects: Probability (math.PR); Functional Analysis (math.FA)

[634] arXiv:math/0703504 [pdf, other]

Title: Ubiquity of simplices in subsets of vector spaces over finite fields

Derrick Hart (University of Missouri - Columbia), Alex Iosevich (University of Missouri - Columbia)

Comments: 10 pages

Subjects: Classical Analysis and ODEs (math.CA); Combinatorics (math.CO)

[635] arXiv:math/0703505 [pdf, other]

Title: A Neumann Type Maximum Principle for the Laplace Operator on Compact Riemannian Manifolds

Guofang Wei, Rugang Ye

Comments: In Theorem A, the previous maximum estimate in terms of the isoperimetric constant is replaced by a maximum estimate in terms of the volume-normalized isoperimetric constant. The statements of Gallot's estimate for the isoperimetric constant are corrected

Subjects: Differential Geometry (math.DG)

[636] arXiv:math/0703506 [pdf, other]

Title: On the best possible remaining term in the Hardy Inequality

Nassif Ghoussoub, Amir Moradifam

Comments: 13 pages. Updated versions --if any-- of this author's papers can be downloaded at this http URL

Subjects: Analysis of PDEs (math.AP)

[637] arXiv:math/0703507 [pdf, other]

Title: Skew group algebras of piecewise hereditary algebras are piecewise hereditary

Julie Dionne, Marcelo Lanzilotta, David Smith

Comments: 13 pages, typos corrected. To appear in J. Pure Appl. Algebra

Subjects: Rings and Algebras (math.RA); Representation Theory (math.RT)

[638] arXiv:math/0703508 [pdf, other]

Title: Generalized Euler constants

Harold G. Diamond, Kevin Ford

Comments: v2. 13 pages. Minor changes suggested by the referee. To appear in Math. Proc. Cambridge Phil. Soc

Journal-ref: Math. Proc. Cambridge Phil. Soc 145 (2008), 27-41

Subjects: Number Theory (math.NT)

[639] arXiv:math/0703509 [pdf, other]

Title: Compactness for Embedded Pseudoholomorphic Curves in 3-manifolds

Chris Wendl

Comments: 32 pages, 4 figures; v.3 includes some minor improvements to the exposition suggested by the referee

Subjects: Symplectic Geometry (math.SG); Analysis of PDEs (math.AP)

[640] arXiv:math/0703510 [pdf, other]

Title: Operator-valued semicircular elements: Solving a quadratic matrix equation with positivity constraints

J. William Helton, Reza Rashidi Far, Roland Speicher

Comments: 14 pages, 2 figures

Subjects: Operator Algebras (math.OA); Complex Variables (math.CV)

[641] arXiv:math/0703511 [pdf, other]

Title: An obstacle control problem involving the p-Laplacian

Mouna Kraiem (AGM)

Subjects: Analysis of PDEs (math.AP)

[642] arXiv:math/0703512 [pdf, other]

Title: Dynamics of homogeneous scalar fields with general self-interaction potentials: cosmological and gravitational collapse models

R. Giambò, F. Giannoni, G. Magli

Subjects: Classical Analysis and ODEs (math.CA)

[643] arXiv:math/0703513 [pdf, other]

Title: Dispersion measure for symmetric, stable probability distributions

Jussi I. Tyhtila

Comments: Corrected typos, added explicit connection to the Hurst exponent

Subjects: Probability (math.PR)

[644] arXiv:math/0703514 [pdf, other]

Title: Stabilized plethysms for the classical Lie groups

Cedric Lecouvey

Subjects: Representation Theory (math.RT); Combinatorics (math.CO)

[645] arXiv:math/0703515 [pdf, other]

Title: Improvement on a Central Theory of PDEs

Elemer E Rosinger

Subjects: General Mathematics (math.GM)

[646] arXiv:math/0703516 [pdf, other]

Title: Piecewise linear homeomorphisms of the real line

Ian Short

Subjects: Dynamical Systems (math.DS)

[647] arXiv:math/0703517 [pdf, other]

Title: Convergence of Bergman geodesics on CP^1

Jian Song, Steve Zelditch

Comments: 23 pages

Journal-ref: Annales Institut Fourier, volume 57, number 6 (2007), p. 2209-2237

Subjects: Differential Geometry (math.DG)

[648] arXiv:math/0703518 [pdf, other]

Title: Rigidity of broken geodesic flow and inverse problems

Yaroslav Kurylev, Matti Lassas, Gunther Uhlmann

Subjects: Analysis of PDEs (math.AP); Differential Geometry (math.DG)

[649] arXiv:math/0703519 [pdf, other]

Title: Creepers: Real quadratic orders with large class number

Roger Patterson

Comments: PhD Thesis, Macquarie University, Sydney, November 2003

Subjects: Number Theory (math.NT)

[650] arXiv:math/0703520 [pdf, other]

Title: Limit theorems for radial random walks on pxq-matrices as p tends to infinity

Margit Rösler, Michael Voit

Comments: 24 pages

Subjects: Classical Analysis and ODEs (math.CA); Probability (math.PR)