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Journal of Physics A: Mathematical and Theoretical
All articles published within the last 30 days

As a service to our authors, papers published in our journals are free for 30 days from online publication. Further information is available.

Atom–wall dispersive forces: a microscopic approach
F Cornu and Ph A Martin 2009 J. Phys. A: Math. Theor. 42 495001 (24pp)   doi: 10.1088/1751-8113/42/49/495001

Abstract  |  References Full text:  Acrobat PDF (338 KB)
Cross-correlation enhanced stability in a tumor cell growth model with immune surveillance driven by cross-correlated noises
Chunhua Zeng, Xiaofeng Zhou and Shufen Tao 2009 J. Phys. A: Math. Theor. 42 495002 (8pp)   doi: 10.1088/1751-8113/42/49/495002

Abstract  |  References Full text:  Acrobat PDF (610 KB)
Exact solution of the discrete (1+1)-dimensional RSOS model with field and surface interactions
A L Owczarek and T Prellberg 2009 J. Phys. A: Math. Theor. 42 495003 (9pp)   doi: 10.1088/1751-8113/42/49/495003

Abstract  |  References Full text:  Acrobat PDF (145 KB)
Deterministic reaction models with power-law forces
Daniel ben-Avraham, Oleksandr Gromenko and Paolo Politi 2009 J. Phys. A: Math. Theor. 42 495004 (13pp)   doi: 10.1088/1751-8113/42/49/495004

Abstract  |  References Full text:  Acrobat PDF (441 KB)
Semiclassical theory for universality in quantum chaos with symmetry crossover
Keiji Saito, Taro Nagao, Sebastian Müller and Petr Braun 2009 J. Phys. A: Math. Theor. 42 495101 (22pp)   doi: 10.1088/1751-8113/42/49/495101

Abstract  |  References Full text:  Acrobat PDF (433 KB)
Grand antiprism and quaternions
Mehmet Koca, Mudhahir Al Ajmi and Nazife Ozdes Koca 2009 J. Phys. A: Math. Theor. 42 495201 (16pp)   doi: 10.1088/1751-8113/42/49/495201

Abstract  |  References Full text:  Acrobat PDF (374 KB)
Parafermions for higher order extensions of the Poincaré algebra and their associated superspace
Rutwig Campoamor-Stursberg and Michel Rausch de Traubenberg 2009 J. Phys. A: Math. Theor. 42 495202 (18pp)   doi: 10.1088/1751-8113/42/49/495202

Abstract  |  References Full text:  Acrobat PDF (268 KB)
The {\cal N}=1 supersymmetric Landau problem and its supersymmetric Landau level projections: the {\cal N}=1 supersymmetric Moyal–Voros superplane
Joseph Ben Geloun, Jan Govaerts and Frederik G Scholtz 2009 J. Phys. A: Math. Theor. 42 495203 (18pp)   doi: 10.1088/1751-8113/42/49/495203

Abstract  |  References Full text:  Acrobat PDF (205 KB)
Finite propagation speed and causal free quantum fields on networks
Robert Schrader 2009 J. Phys. A: Math. Theor. 42 495401 (39pp)   doi: 10.1088/1751-8113/42/49/495401

Abstract  |  References Full text:  Acrobat PDF (475 KB)
Special issue on Current Trends in Integrability and Nonlinear Phenomena
D Gómez-Ullate, S Lombardo, M Mañas, M Mazzocco, F Nijhoff and M Sommacal (Guest Editors) 2009 J. Phys. A: Math. Theor. 42 480201 (2p)   doi: 10.1088/1751-8121/42/48/480201

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Skyrmion multi-walls
J Silva Lobo and R S Ward 2009 J. Phys. A: Math. Theor. 42 482001 (5pp)   doi: 10.1088/1751-8113/42/48/482001

Abstract  |  References Full text:  Acrobat PDF (243 KB)  |  HTML
A mathematical model for generating bipartite graphs and its application to protein networks
J C Nacher, T Ochiai, M Hayashida and T Akutsu 2009 J. Phys. A: Math. Theor. 42 485005 (10pp)   doi: 10.1088/1751-8113/42/48/485005

Abstract  |  References Full text:  Acrobat PDF (359 KB)
Appearance of vertices of infinite order in a model of random trees
Thordur Jonsson and Sigurður Örn Stefánsson 2009 J. Phys. A: Math. Theor. 42 485006 (15pp)   doi: 10.1088/1751-8113/42/48/485006

Abstract  |  References Full text:  Acrobat PDF (257 KB)
Evolution profiles and functional equations
Thomas Curtright and Cosmas Zachos 2009 J. Phys. A: Math. Theor. 42 485208 (16pp)   doi: 10.1088/1751-8113/42/48/485208

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Variations on the planar Landau problem: canonical transformations, a purely linear potential and the half-plane
Jan Govaerts, M Norbert Hounkonnou and Habatwa V Mweene 2009 J. Phys. A: Math. Theor. 42 485209 (19pp)   doi: 10.1088/1751-8113/42/48/485209

Abstract  |  References Full text:  Acrobat PDF (219 KB)
Discrete repulsive oscillator wavefunctions
Carlos A Muñoz, Juvenal Rueda-Paz and Kurt Bernardo Wolf 2009 J. Phys. A: Math. Theor. 42 485210 (12pp)   doi: 10.1088/1751-8113/42/48/485210

Abstract  |  References Full text:  Acrobat PDF (1.01 MB)
New solutions for the quantum drift–diffusion model of semiconductors
J Ramírez and R Tracinà 2009 J. Phys. A: Math. Theor. 42 485211 (17pp)   doi: 10.1088/1751-8113/42/48/485211

Abstract  |  References Full text:  Acrobat PDF (453 KB)
Effects of differential rotation on the eigenfrequencies of small adiabatic barotropic modes of oscillations of polytropic models of stars
A K Lal, Ankush Pathania, Alka Bhalla and C Mohan 2009 J. Phys. A: Math. Theor. 42 485212 (24pp)   doi: 10.1088/1751-8113/42/48/485212

Abstract  |  References Full text:  Acrobat PDF (324 KB)
On the electromagnetic properties of matter in collapse models
Angelo Bassi and Detlef Dürr 2009 J. Phys. A: Math. Theor. 42 485302 (14pp)   doi: 10.1088/1751-8113/42/48/485302

Abstract  |  References Full text:  Acrobat PDF (191 KB)
Non-universal finite-size scaling of rough surfaces
Pradipta Kumar Mandal and Debnarayan Jana 2009 J. Phys. A: Math. Theor. 42 485004 (15pp)   doi: 10.1088/1751-8113/42/48/485004

Abstract  |  References Full text:  Acrobat PDF (530 KB)
Real simple n-Lie algebras admitting metric structures
Yidong Jin, Wenli Liu and Zhixue Zhang 2009 J. Phys. A: Math. Theor. 42 485206 (9pp)   doi: 10.1088/1751-8113/42/48/485206

Abstract  |  References Full text:  Acrobat PDF (129 KB)
Deautonomizing integrable non-QRT mappings
A S Carstea, B Grammaticos and A Ramani 2009 J. Phys. A: Math. Theor. 42 485207 (10pp)   doi: 10.1088/1751-8113/42/48/485207

Abstract  |  References Full text:  Acrobat PDF (134 KB)
Non-Markovian dynamics of an interacting qubit pair coupled to two independent bosonic baths
I Sinayskiy, E Ferraro, A Napoli, A Messina and F Petruccione 2009 J. Phys. A: Math. Theor. 42 485301 (12pp)   doi: 10.1088/1751-8113/42/48/485301

Abstract  |  References Full text:  Acrobat PDF (385 KB)
Special issue on Current Trends in Integrability and Nonlinear Phenomena
D Gómez-Ullate, S Lombardo, M Mañas, M Mazzocco, F Nijhoff and M Sommacal (Guest Editors) 2009 J. Phys. A: Math. Theor. 42 470201 (2p)   doi: 10.1088/1751-8121/42/47/470201

Full text Full text:  Acrobat PDF (98.9 KB)
Tailored graph ensembles as proxies or null models for real networks I: tools for quantifying structure
A Annibale, A C C Coolen, L P Fernandes, F Fraternali and J Kleinjung 2009 J. Phys. A: Math. Theor. 42 485001 (25pp)   doi: 10.1088/1751-8113/42/48/485001

Abstract  |  References Full text:  Acrobat PDF (1.65 MB)
The robustness of spontaneous symmetry breaking in a bridge model
Shamik Gupta, David Mukamel and Gunter M Schütz 2009 J. Phys. A: Math. Theor. 42 485002 (21pp)   doi: 10.1088/1751-8113/42/48/485002

Abstract  |  References Full text:  Acrobat PDF (677 KB)
Two generalizations of column-convex polygons
Svjetlan Feretić and Anthony J Guttmann 2009 J. Phys. A: Math. Theor. 42 485003 (17pp)   doi: 10.1088/1751-8113/42/48/485003

Abstract  |  References Full text:  Acrobat PDF (388 KB)
A very effective density classifier two-dimensional cellular automaton with memory
Ramón Alonso-Sanz and Larry Bull 2009 J. Phys. A: Math. Theor. 42 485101 (14pp)   doi: 10.1088/1751-8113/42/48/485101

Abstract  |  References Full text:  Acrobat PDF (2.28 MB)
Spacing distributions for real symmetric 2 × 2 generalized Gaussian ensembles
M V Berry and P Shukla 2009 J. Phys. A: Math. Theor. 42 485102 (13pp)   doi: 10.1088/1751-8113/42/48/485102

Abstract  |  References Full text:  Acrobat PDF (431 KB)
Quaternionic soliton equations from Hamiltonian curve flows in {\bb H}{\bb P}^n
Stephen C Anco and Esmaeel Asadi 2009 J. Phys. A: Math. Theor. 42 485201 (25pp)   doi: 10.1088/1751-8113/42/48/485201

Abstract  |  References Full text:  Acrobat PDF (328 KB)
Conformal mappings versus other power series methods for solving ordinary differential equations: illustration on anharmonic oscillators
C Bervillier 2009 J. Phys. A: Math. Theor. 42 485202 (17pp)   doi: 10.1088/1751-8113/42/48/485202

Abstract  |  References Full text:  Acrobat PDF (366 KB)
Branching rules for the Weyl group orbits of the Lie algebra An
M Larouche, M Nesterenko and J Patera 2009 J. Phys. A: Math. Theor. 42 485203 (15pp)   doi: 10.1088/1751-8113/42/48/485203

Abstract  |  References Full text:  Acrobat PDF (158 KB)
Superpotentials for superconformal Chern–Simons theories from representation theory
Paul de Medeiros, José Figueroa-O'Farrill and Elena Méndez-Escobar 2009 J. Phys. A: Math. Theor. 42 485204 (56pp)   doi: 10.1088/1751-8113/42/48/485204

Abstract  |  References Full text:  Acrobat PDF (825 KB)
Area distribution of an elastic Brownian motion
M A Rajabpour 2009 J. Phys. A: Math. Theor. 42 485205 (14pp)   doi: 10.1088/1751-8113/42/48/485205

Abstract  |  References Full text:  Acrobat PDF (249 KB)
Zero width resonance (spectral singularity) in a complex PT-symmetric potential
Zafar Ahmed 2009 J. Phys. A: Math. Theor. 42 472005 (3pp)   doi: 10.1088/1751-8113/42/47/472005

Abstract  |  References Full text:  Acrobat PDF (101 KB)  |  HTML
Bounds for the minimum step number of knots in the simple cubic lattice
R Scharein, K Ishihara, J Arsuaga, Y Diao, K Shimokawa and M Vazquez 2009 J. Phys. A: Math. Theor. 42 475006 (24pp)   doi: 10.1088/1751-8113/42/47/475006

Abstract  |  References Full text:  Acrobat PDF (873 KB)
Statistical properties of two-particle transmission at an Anderson transition
Cécile Monthus and Thomas Garel 2009 J. Phys. A: Math. Theor. 42 475007 (10pp)   doi: 10.1088/1751-8113/42/47/475007

Abstract  |  References Full text:  Acrobat PDF (242 KB)
Mapping between generalized nonlinear Schrödinger equations and neutral scalar field theories and new solutions of the cubic–quintic NLS equation
Avinash Khare, Avadh Saxena and Kody J H Law 2009 J. Phys. A: Math. Theor. 42 475404 (23pp)   doi: 10.1088/1751-8113/42/47/475404

Abstract  |  References Full text:  Acrobat PDF (841 KB)
On the generation of anomalous diffusion
Iddo Eliazar and Joseph Klafter 2009 J. Phys. A: Math. Theor. 42 472003 (7pp)   doi: 10.1088/1751-8113/42/47/472003

Abstract  |  References Full text:  Acrobat PDF (182 KB)  |  HTML
Non-skew-symmetric classical r-matrices and integrable cases of the reduced BCS model
T Skrypnyk 2009 J. Phys. A: Math. Theor. 42 472004 (10pp)   doi: 10.1088/1751-8113/42/47/472004

Abstract  |  References Full text:  Acrobat PDF (197 KB)  |  HTML
Stochastic resonance of a subdiffusive bistable system driven by Lévy noise based on the subordination process
Lei Zhang, Aiguo Song and Jun He 2009 J. Phys. A: Math. Theor. 42 475003 (12pp)   doi: 10.1088/1751-8113/42/47/475003

Abstract  |  References Full text:  Acrobat PDF (481 KB)
Heat distribution function for motion in a general potential at low temperature
Hans C Fogedby and Alberto Imparato 2009 J. Phys. A: Math. Theor. 42 475004 (8pp)   doi: 10.1088/1751-8113/42/47/475004

Abstract  |  References Full text:  Acrobat PDF (177 KB)
Properties of the solvation force of a two-dimensional Ising strip in scaling regimes
Piotr Nowakowski and Marek Napiórkowski 2009 J. Phys. A: Math. Theor. 42 475005 (18pp)   doi: 10.1088/1751-8113/42/47/475005

Abstract  |  References Full text:  Acrobat PDF (486 KB)
Scaling symmetries, conservation laws and action principles in one-dimensional gas dynamics
G M Webb and G P Zank 2009 J. Phys. A: Math. Theor. 42 475205 (23pp)   doi: 10.1088/1751-8113/42/47/475205

Abstract  |  References Full text:  Acrobat PDF (323 KB)
Exponential decay of eigenfunctions of Brown–Ravenhall operators
Sergey Morozov 2009 J. Phys. A: Math. Theor. 42 475206 (16pp)   doi: 10.1088/1751-8113/42/47/475206

Abstract  |  References Full text:  Acrobat PDF (220 KB)
Unambiguous formalism for higher order Lagrangian field theories
Cédric M Campos, Manuel de León, David Martín de Diego and Joris Vankerschaver 2009 J. Phys. A: Math. Theor. 42 475207 (24pp)   doi: 10.1088/1751-8113/42/47/475207

Abstract  |  References Full text:  Acrobat PDF (436 KB)
The exactly solvable quasi-Hermitian transverse Ising model
Tetsuo Deguchi and Pijush K Ghosh 2009 J. Phys. A: Math. Theor. 42 475208 (10pp)   doi: 10.1088/1751-8113/42/47/475208

Abstract  |  References Full text:  Acrobat PDF (132 KB)
Ternutator identities
Chandrashekar Devchand, David Fairlie, Jean Nuyts and Gregor Weingart 2009 J. Phys. A: Math. Theor. 42 475209 (8pp)   doi: 10.1088/1751-8113/42/47/475209

Abstract  |  References Full text:  Acrobat PDF (127 KB)
Star products: a group-theoretical point of view
Paolo Aniello 2009 J. Phys. A: Math. Theor. 42 475210 (29pp)   doi: 10.1088/1751-8113/42/47/475210

Abstract  |  References Full text:  Acrobat PDF (389 KB)
Analytic propagators for spin–orbit interactions
Bailey C Hsu and Jean-François S Van Huele 2009 J. Phys. A: Math. Theor. 42 475304 (17pp)   doi: 10.1088/1751-8113/42/47/475304

Abstract  |  References Full text:  Acrobat PDF (627 KB)
Quantum state transfer in a q-deformed chain
Sonia L'Innocente, Cosmo Lupo and Stefano Mancini 2009 J. Phys. A: Math. Theor. 42 475305 (12pp)   doi: 10.1088/1751-8113/42/47/475305

Abstract  |  References Full text:  Acrobat PDF (249 KB)
Generalized Huygens principle with pulsed-beam wavelets
Thorkild Hansen and Gerald Kaiser 2009 J. Phys. A: Math. Theor. 42 475403 (33pp)   doi: 10.1088/1751-8113/42/47/475403

Abstract  |  References Full text:  Acrobat PDF (1.19 MB)
Singularity avoidance in quantum FRW cosmologies in the presence of barotropic perfect fluids
Emilio Elizalde and Jaume Haro 2009 J. Phys. A: Math. Theor. 42 472001 (9pp)   doi: 10.1088/1751-8113/42/47/472001

Abstract  |  References Full text:  Acrobat PDF (225 KB)  |  HTML
Lagrangian multiform structure for the lattice KP system
S B Lobb, F W Nijhoff and G R W Quispel 2009 J. Phys. A: Math. Theor. 42 472002 (11pp)   doi: 10.1088/1751-8113/42/47/472002

Abstract  |  References Full text:  Acrobat PDF (7.34 MB)  |  HTML
Stratification in the preferential attachment network
E Ben-Naim and P L Krapivsky 2009 J. Phys. A: Math. Theor. 42 475001 (10pp)   doi: 10.1088/1751-8113/42/47/475001

Abstract  |  References Full text:  Acrobat PDF (224 KB)
A numerical study of the diverging probability density function of flat-top solitons in an extended Korteweg–de Vries equation
Yeojin Chung 2009 J. Phys. A: Math. Theor. 42 475002 (7pp)   doi: 10.1088/1751-8113/42/47/475002

Abstract  |  References Full text:  Acrobat PDF (200 KB)
Statistics of thermal to shot noise crossover in chaotic cavities
Vladimir Al Osipov and Eugene Kanzieper 2009 J. Phys. A: Math. Theor. 42 475101 (14pp)   doi: 10.1088/1751-8113/42/47/475101

Abstract  |  References Full text:  Acrobat PDF (302 KB)
Integrability, analyticity, isochrony, equilibria, small oscillations, and Diophantine relations: results from the stationary Burgers hierarchy
M Bruschi, F Calogero and R Droghei 2009 J. Phys. A: Math. Theor. 42 475202 (9pp)   doi: 10.1088/1751-8113/42/47/475202

Abstract  |  References Full text:  Acrobat PDF (112 KB)
A new class of integrable defects
E Corrigan and C Zambon 2009 J. Phys. A: Math. Theor. 42 475203 (20pp)   doi: 10.1088/1751-8113/42/47/475203

Abstract  |  References Full text:  Acrobat PDF (243 KB)
Contracted and expanded integrable structures
Anastasia Doikou and Konstadinos Sfetsos 2009 J. Phys. A: Math. Theor. 42 475204 (17pp)   doi: 10.1088/1751-8113/42/47/475204

Abstract  |  References Full text:  Acrobat PDF (254 KB)
Toward an understanding of entanglement for generalized n-qubit W-states
Levon Tamaryan, Hungsoo Kim, Eylee Jung, Mi-Ra Hwang, DaeKil Park and Sayatnova Tamaryan 2009 J. Phys. A: Math. Theor. 42 475303 (13pp)   doi: 10.1088/1751-8113/42/47/475303

Abstract  |  References Full text:  Acrobat PDF (330 KB)
Comment on 'Monte Carlo simulation study of the two-stage percolation transition in enhanced binary trees'
Seung Ki Baek, Petter Minnhagen and Beom Jun Kim 2009 J. Phys. A: Math. Theor. 42 478001 (4pp)   doi: 10.1088/1751-8113/42/47/478001

Abstract  |  References Full text:  Acrobat PDF (645 KB)
Reply to the comment on 'Monte Carlo simulation study of the two-stage percolation transition in enhanced binary trees'
Tomoaki Nogawa and Takehisa Hasegawa 2009 J. Phys. A: Math. Theor. 42 478002 (4pp)   doi: 10.1088/1751-8113/42/47/478002

Abstract  |  References Full text:  Acrobat PDF (213 KB)
Classification of coupled systems with two-component nonlinear diffusion equations by the invariant subspace method
Changzheng Qu and Chunrong Zhu 2009 J. Phys. A: Math. Theor. 42 475201 (27pp)   doi: 10.1088/1751-8113/42/47/475201

Abstract  |  References Full text:  Acrobat PDF (355 KB)
Quantum force induced on a partition wall in a harmonic potential
T Fülöp and I Tsutsui 2009 J. Phys. A: Math. Theor. 42 475301 (19pp)   doi: 10.1088/1751-8113/42/47/475301

Abstract  |  References Full text:  Acrobat PDF (343 KB)
Mixing and decoherence in continuous-time quantum walks on long-range interacting cycles
S Salimi and R Radgohar 2009 J. Phys. A: Math. Theor. 42 475302 (10pp)   doi: 10.1088/1751-8113/42/47/475302

Abstract  |  References Full text:  Acrobat PDF (200 KB)
Smoothing of singular Legendre transforms in renormalization group flows
C Husemann and M Salmhofer 2009 J. Phys. A: Math. Theor. 42 475401 (9pp)   doi: 10.1088/1751-8113/42/47/475401

Abstract  |  References Full text:  Acrobat PDF (136 KB)
On light propagation in premetric electrodynamics: the covariant dispersion relation
Yakov Itin 2009 J. Phys. A: Math. Theor. 42 475402 (20pp)   doi: 10.1088/1751-8113/42/47/475402

Abstract  |  References Full text:  Acrobat PDF (241 KB)
Reducible correlations in Dicke states
Preeti Parashar and Swapan Rana 2009 J. Phys. A: Math. Theor. 42 462003 (11pp)   doi: 10.1088/1751-8113/42/46/462003

Abstract  |  References Full text:  Acrobat PDF (286 KB)  |  HTML
Quantum forbidden-interval theorems for stochastic resonance
Mark M Wilde and Bart Kosko 2009 J. Phys. A: Math. Theor. 42 465309 (23pp)   doi: 10.1088/1751-8113/42/46/465309

Abstract  |  References Full text:  Acrobat PDF (406 KB)
Symmetries and integrability of difference equations
Decio Levi, Peter Olver, Zora Thomova, Pavel Winternitz (Guest Editors) 2009 J. Phys. A: Math. Theor. 42 450301   doi: 10.1088/1751-8121/42/45/450301

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Darboux transformations for linear operators on two-dimensional regular lattices
Adam Doliwa and Maciej Nieszporski 2009 J. Phys. A: Math. Theor. 42 454001 (27pp)   doi: 10.1088/1751-8113/42/45/454001

Abstract  |  References Full text:  Acrobat PDF (515 KB)
How to detect the integrability of discrete systems
B Grammaticos, R G Halburd, A Ramani and C-M Viallet 2009 J. Phys. A: Math. Theor. 42 454002 (30pp)   doi: 10.1088/1751-8113/42/45/454002

Abstract  |  References Full text:  Acrobat PDF (372 KB)
Discrete integrable systems and deformations of associative algebras
B G Konopelchenko 2009 J. Phys. A: Math. Theor. 42 454003 (35pp)   doi: 10.1088/1751-8113/42/45/454003

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q-Extension of Mehta's eigenvectors of the finite Fourier transform for q, a root of unity
Mesuma K Atakishiyeva, Natig M Atakishiyev and Tom H Koornwinder 2009 J. Phys. A: Math. Theor. 42 454004 (9pp)   doi: 10.1088/1751-8113/42/45/454004

Abstract  |  References Full text:  Acrobat PDF (149 KB)
Linear quadrilateral lattice equations and multidimensional consistency
James Atkinson 2009 J. Phys. A: Math. Theor. 42 454005 (7pp)   doi: 10.1088/1751-8113/42/45/454005

Abstract  |  References Full text:  Acrobat PDF (140 KB)
Cubic string boundary value problems and Cauchy biorthogonal polynomials
M Bertola, M Gekhtman and J Szmigielski 2009 J. Phys. A: Math. Theor. 42 454006 (13pp)   doi: 10.1088/1751-8113/42/45/454006

Abstract  |  References Full text:  Acrobat PDF (167 KB)
First integrals of difference Hamiltonian equations
Vladimir Dorodnitsyn and Roman Kozlov 2009 J. Phys. A: Math. Theor. 42 454007 (17pp)   doi: 10.1088/1751-8113/42/45/454007

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Factorizations of rational matrix functions with application to discrete isomonodromic transformations and difference Painlevé equations
Anton Dzhamay 2009 J. Phys. A: Math. Theor. 42 454008 (10pp)   doi: 10.1088/1751-8113/42/45/454008

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Investigating the integrability of the Lyness mappings
B Grammaticos, A Ramani and T Tamizhmani 2009 J. Phys. A: Math. Theor. 42 454009 (7pp)   doi: 10.1088/1751-8113/42/45/454009

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The Karlin–McGregor formula for a variant of a discrete version of Walsh's spider
F Alberto Grünbaum 2009 J. Phys. A: Math. Theor. 42 454010 (10pp)   doi: 10.1088/1751-8113/42/45/454010

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Multiscale reduction of discrete nonlinear Schrödinger equations
D Levi, M Petrera and C Scimiterna 2009 J. Phys. A: Math. Theor. 42 454011 (12pp)   doi: 10.1088/1751-8113/42/45/454011

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The generalized symmetry method for discrete equations
D Levi and R I Yamilov 2009 J. Phys. A: Math. Theor. 42 454012 (18pp)   doi: 10.1088/1751-8113/42/45/454012

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Lagrangian multiforms and multidimensional consistency
Sarah Lobb and Frank Nijhoff 2009 J. Phys. A: Math. Theor. 42 454013 (18pp)   doi: 10.1088/1751-8113/42/45/454013

Abstract  |  References Full text:  Acrobat PDF (308 KB)
The best constant of discrete Sobolev inequality
Atsushi Nagai, Yoshinori Kametaka and Kohtaro Watanabe 2009 J. Phys. A: Math. Theor. 42 454014 (12pp)   doi: 10.1088/1751-8113/42/45/454014

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The Wigner function of the relativistic finite-difference oscillator in an external field
S M Nagiyev, G H Guliyeva and E I Jafarov 2009 J. Phys. A: Math. Theor. 42 454015 (10pp)   doi: 10.1088/1751-8113/42/45/454015

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Invariant difference schemes and their application to sl(2\hbox{,}\, \mathbb {R}) invariant ordinary differential equations
R Rebelo and P Winternitz 2009 J. Phys. A: Math. Theor. 42 454016 (10pp)   doi: 10.1088/1751-8113/42/45/454016

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Third order difference equations with two rational integrals
R Sahadevan and C Uma Maheswari 2009 J. Phys. A: Math. Theor. 42 454017 (11pp)   doi: 10.1088/1751-8113/42/45/454017

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Multiscale reduction of discrete Korteweg–de Vries equations
C Scimiterna 2009 J. Phys. A: Math. Theor. 42 454018 (18pp)   doi: 10.1088/1751-8113/42/45/454018

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Semi-classical Laguerre polynomials and a third-order discrete integrable equation
Paul E Spicer and Frank W Nijhoff 2009 J. Phys. A: Math. Theor. 42 454019 (9pp)   doi: 10.1088/1751-8113/42/45/454019

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Symmetries of differential–difference dynamical systems in a two-dimensional lattice
Isabelle Ste-Marie and Sébastien Tremblay 2009 J. Phys. A: Math. Theor. 42 454020 (22pp)   doi: 10.1088/1751-8113/42/45/454020

Abstract  |  References Full text:  Acrobat PDF (272 KB)
On some class of reductions for the Itoh–Narita–Bogoyavlenskii lattice
A K Svinin 2009 J. Phys. A: Math. Theor. 42 454021 (15pp)   doi: 10.1088/1751-8113/42/45/454021

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Negative semi-discrete KP and BKP hierarchies via nonlocal symmetries
Kai Tian and Xing-Biao Hu 2009 J. Phys. A: Math. Theor. 42 454022 (12pp)   doi: 10.1088/1751-8113/42/45/454022

Abstract  |  References Full text:  Acrobat PDF (156 KB)
Hyperdeterminants as integrable discrete systems
Sergey P Tsarev and Thomas Wolf 2009 J. Phys. A: Math. Theor. 42 454023 (9pp)   doi: 10.1088/1751-8113/42/45/454023

Abstract  |  References Full text:  Acrobat PDF (223 KB)
Elliptic solutions of the restricted Toda chain, Lamé polynomials and generalization of the elliptic Stieltjes polynomials
Luc Vinet and Alexei Zhedanov 2009 J. Phys. A: Math. Theor. 42 454024 (16pp)   doi: 10.1088/1751-8113/42/45/454024

Abstract  |  References Full text:  Acrobat PDF (202 KB)
Symmetries and integrability of discrete equations defined on a black–white lattice
P D Xenitidis and V G Papageorgiou 2009 J. Phys. A: Math. Theor. 42 454025 (13pp)   doi: 10.1088/1751-8113/42/45/454025

Abstract  |  References Full text:  Acrobat PDF (173 KB)
A new extended discrete KP hierarchy and a generalized dressing method
Yuqin Yao, Xiaojun Liu and Yunbo Zeng 2009 J. Phys. A: Math. Theor. 42 454026 (10pp)   doi: 10.1088/1751-8113/42/45/454026

Abstract  |  References Full text:  Acrobat PDF (154 KB)
Exact renormalization group flow for ultracold Fermi gases in the unitary limit
Boris Krippa 2009 J. Phys. A: Math. Theor. 42 465002 (10pp)   doi: 10.1088/1751-8113/42/46/465002

Abstract  |  References Full text:  Acrobat PDF (151 KB)
Differential equations with fractional derivative and universal map with memory
Vasily E Tarasov 2009 J. Phys. A: Math. Theor. 42 465102 (13pp)   doi: 10.1088/1751-8113/42/46/465102

Abstract  |  References Full text:  Acrobat PDF (167 KB)
A delta well with a mass jump
M Gadella, F J H Heras, J Negro and L M Nieto 2009 J. Phys. A: Math. Theor. 42 465207 (11pp)   doi: 10.1088/1751-8113/42/46/465207

Abstract  |  References Full text:  Acrobat PDF (167 KB)
Distance statistics in quadrangulations with a boundary, or with a self-avoiding loop
J Bouttier and E Guitter 2009 J. Phys. A: Math. Theor. 42 465208 (44pp)   doi: 10.1088/1751-8113/42/46/465208

Abstract  |  References Full text:  Acrobat PDF (858 KB)
3-sphere fibrations: a tool for analyzing twisted materials in condensed matter
J F Sadoc and J Charvolin 2009 J. Phys. A: Math. Theor. 42 465209 (17pp)   doi: 10.1088/1751-8113/42/46/465209

Abstract  |  References Full text:  Acrobat PDF (554 KB)
A summation formula over the zeros of a combination of the associated Legendre functions with a physical application
A A Saharian 2009 J. Phys. A: Math. Theor. 42 465210 (15pp)   doi: 10.1088/1751-8113/42/46/465210

Abstract  |  References Full text:  Acrobat PDF (194 KB)
A spin chain model with non-Hermitian interaction: the Ising quantum spin chain in an imaginary field
Olalla A Castro-Alvaredo and Andreas Fring 2009 J. Phys. A: Math. Theor. 42 465211 (29pp)   doi: 10.1088/1751-8113/42/46/465211

Abstract  |  References Full text:  Acrobat PDF (500 KB)
Quantum-like picture for intrinsic, classical, arrival distributions
Gabino Torres-Vega 2009 J. Phys. A: Math. Theor. 42 465307 (12pp)   doi: 10.1088/1751-8113/42/46/465307

Abstract  |  References Full text:  Acrobat PDF (569 KB)
Correlations in free fermionic states
M Fannes and J Wouters 2009 J. Phys. A: Math. Theor. 42 465308 (12pp)   doi: 10.1088/1751-8113/42/46/465308

Abstract  |  References Full text:  Acrobat PDF (158 KB)
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