Journal of Physics A: Mathematical and Theoretical latest papers http://stacks.iop.org/1751-8121 A major journal reporting work on the fundamental mathematical and computational methods underpinning physics. Each issue of the journal is split into six sections: statistical physics; chaotic and complex systems; mathematical physics; quantum mechanics and quantum information theory; classical and quantum field theory; and fluid and plasma theory. en-gb Copyright © IOP Publishing 2009 Thu, 01 Jan 1970 00:00:00 GMT Thu, 01 Jan 1970 00:00:00 GMT http://syndication.iop.org/about/ custserv@iop.org (Customer Services) Journal of Physics A: Mathematical and Theoretical http://images.iop.org/website-logos/ejs_logo.png http://stacks.iop.org/ Cross-correlation enhanced stability in a tumor cell growth model with immune surveillance driven by cross-correlated noises http://stacks.iop.org/1751-8121/42/i=49/a=495002?rss=2.0 Author(s): Chunhua Zeng, Xiaofeng Zhou and Shufen Tao<br>Affiliation(s): Faculty of Science, Kunming University of Science and Technology, Kunming 650093, People's Republic of China; Department of Physics, Qujing Normal University, Qujing 655000, People's Republic of China Fri, 20 Nov 2009 00:00:00 GMT Atom–wall dispersive forces: a microscopic approach http://stacks.iop.org/1751-8121/42/i=49/a=495001?rss=2.0 Author(s): F Cornu and Ph A Martin<br>Affiliation(s): Laboratoire de Physique Theorique, UMR 8627 du CNRS, Universite Paris-Sud, Bat. 210, F-91405 Orsay, France; Institute of Theoretical Physics, Swiss Federal Institute for Technology Lausanne, CH-1015, Lausanne EPFL, Switzerland Fri, 20 Nov 2009 00:00:00 GMT Finite propagation speed and causal free quantum fields on networks http://stacks.iop.org/1751-8121/42/i=49/a=495401?rss=2.0 Author(s): Robert Schrader<br>Affiliation(s): Institut fur Theoretische Physik, Freie Universitat Berlin, Arnimallee 14, D-14195 Berlin, Germany Fri, 20 Nov 2009 00:00:00 GMT Semiclassical theory for universality in quantum chaos with symmetry crossover http://stacks.iop.org/1751-8121/42/i=49/a=495101?rss=2.0 Author(s): Keiji Saito, Taro Nagao, Sebastian Muller and Petr Braun<br>Affiliation(s): Graduate School of Science, University of Tokyo, 113-0033, Japan; CREST, Japan Science and Technology (JST), Saitama, 332-0012, Japan; Graduate School of Mathematics, Nagoya University, Chikusa-ku, Nagoya 464-8602, Japan; Department of Mathematics, University of Bristol, Bristol BS8 1TW, UK; Fachbereich Physik, Universitat Duisburg-Essen, 47048 Duisburg, Germany; Institute of Physics, Saint-Petersburg University, 198504 Saint-Petersburg, Russia Fri, 20 Nov 2009 00:00:00 GMT Deterministic reaction models with power-law forces http://stacks.iop.org/1751-8121/42/i=49/a=495004?rss=2.0 Author(s): Daniel ben-Avraham, Oleksandr Gromenko and Paolo Politi<br>Affiliation(s): Physics Department, Clarkson University, Potsdam, NY 13699-5820, USA; Department of Mathematics, Clarkson University, Potsdam, NY 13699-5815, USA; Istituto dei Sistemi Complessi, Consiglio Nazionale delle Ricerche, Via Madonna del Piano 10, 50019 Sesto Fiorentino, Italy; INFN Sezione di Firenze, via G Sansone 1, 50019 Sesto Fiorentino, Italy Fri, 20 Nov 2009 00:00:00 GMT The supersymmetric Landau problem and its supersymmetric Landau level projections: the supersymmetric Moyal–Voros superplane http://stacks.iop.org/1751-8121/42/i=49/a=495203?rss=2.0 Author(s): Joseph Ben Geloun, Jan Govaerts and Frederik G Scholtz<br>Affiliation(s): National Institute for Theoretical Physics (NITheP), Private Bag X1, Matieland 7602, South Africa; Center for Particle Physics and Phenomenology (CP3), Institut de Physique Nucleaire, Universite catholique de Louvain (UCL), 2, Chemin du Cyclotron, B-1348 Louvain-la Neuve, Belgium; International Chair in Mathematical Physics and Applications (ICMPA-UNESCO Chair), University of Abomey-Calavi, 072 BP 50, Cotonou, Republic of Benin; Departement de Mathematiques et Informatique, Faculte des Sciences et Techniques, Universite Cheikh Anta Diop, Senegal Fri, 20 Nov 2009 00:00:00 GMT Parafermions for higher order extensions of the Poincaré algebra and their associated superspace http://stacks.iop.org/1751-8121/42/i=49/a=495202?rss=2.0 Author(s): Rutwig Campoamor-Stursberg and Michel Rausch de Traubenberg<br>Affiliation(s): I.M.I-U.C.M, Plaza de Ciencias 3, E-28040 Madrid, Spain; IPHC-DRS, UdS, CNRS, IN2P3, 23 rue du Loess, F-67037 Strasbourg Cedex, France Fri, 20 Nov 2009 00:00:00 GMT Grand antiprism and quaternions http://stacks.iop.org/1751-8121/42/i=49/a=495201?rss=2.0 Author(s): Mehmet Koca, Mudhahir Al Ajmi and Nazife Ozdes Koca<br>Affiliation(s): Department of Physics, College of Science, Sultan Qaboos University, PO Box 36, Al Khoud, 123 Muscat, Sultanate of Oman Fri, 20 Nov 2009 00:00:00 GMT Exact solution of the discrete (1+1)-dimensional RSOS model with field and surface interactions http://stacks.iop.org/1751-8121/42/i=49/a=495003?rss=2.0 Author(s): A L Owczarek and T Prellberg<br>Affiliation(s): Department of Mathematics and Statistics, The University of Melbourne, Parkville, Vic 3010, Australia; School of Mathematical Sciences, Queen Mary University of London, Mile End Road, London E1 4NS, UK Fri, 20 Nov 2009 00:00:00 GMT Variations on the planar Landau problem: canonical transformations, a purely linear potential and the half-plane http://stacks.iop.org/1751-8121/42/i=48/a=485209?rss=2.0 Author(s): Jan Govaerts, M Norbert Hounkonnou and Habatwa V Mweene<br>Affiliation(s): Center for Particle Physics and Phenomenology (CP3), Institut de Physique Nucleaire, Universite catholique de Louvain (UCL), 2, Chemin du Cyclotron, B-1348 Louvain-la Neuve, Belgium; International Chair in Mathematical Physics and Applications (ICMPA-UNESCO Chair), University of Abomey-Calavi, 072 BP 50, Cotonou, Republic of Benin; Physics Department, University of Zambia, PO Box 32379, Lusaka, Zambia Tue, 17 Nov 2009 00:00:00 GMT New solutions for the quantum drift–diffusion model of semiconductors http://stacks.iop.org/1751-8121/42/i=48/a=485211?rss=2.0 Author(s): J Ramirez and R Tracina<br>Affiliation(s): Departamento de Matematicas, Universidad de Cadiz, Puerto Real, Cadiz, Spain; Dipartimento di Matematica e Informatica, Viale A. Doria 6, 95125 Catania, Italy Tue, 17 Nov 2009 00:00:00 GMT Effects of differential rotation on the eigenfrequencies of small adiabatic barotropic modes of oscillations of polytropic models of stars http://stacks.iop.org/1751-8121/42/i=48/a=485212?rss=2.0 Author(s): A K Lal, Ankush Pathania, Alka Bhalla and C Mohan<br>Affiliation(s): School of Mathematics and Computer Applications, Thapar University, Patiala, Punjab, India; Department of Mathematics, N.I.T., Jalandhar, Punjab, India; Professor of Mathematics (Retd.), IIT Roorkee, Uttarakhand, India Tue, 17 Nov 2009 00:00:00 GMT Discrete repulsive oscillator wavefunctions http://stacks.iop.org/1751-8121/42/i=48/a=485210?rss=2.0 Author(s): Carlos A Munoz, Juvenal Rueda-Paz and Kurt Bernardo Wolf<br>Affiliation(s): Instituto de Ciencias Fisicas, Universidad Nacional Autonoma de Mexico, Av. Universidad s/n, Cuernavaca, Morelos 62251, Mexico Tue, 17 Nov 2009 00:00:00 GMT Evolution profiles and functional equations http://stacks.iop.org/1751-8121/42/i=48/a=485208?rss=2.0 Author(s): Thomas Curtright and Cosmas Zachos<br>Affiliation(s): Department of Physics, University of Miami, Coral Gables, FL 33124-8046, USA; High Energy Physics Division, Argonne National Laboratory, Argonne, IL 60439-4815, USA Tue, 17 Nov 2009 00:00:00 GMT Appearance of vertices of infinite order in a model of random trees http://stacks.iop.org/1751-8121/42/i=48/a=485006?rss=2.0 Author(s): Thordur Jonsson and Sigurdur Orn Stefansson<br>Affiliation(s): The Science Institute, University of Iceland, Dunhaga 3, 107 Reykjavik, Iceland Tue, 17 Nov 2009 00:00:00 GMT A mathematical model for generating bipartite graphs and its application to protein networks http://stacks.iop.org/1751-8121/42/i=48/a=485005?rss=2.0 Author(s): J C Nacher, T Ochiai, M Hayashida and T Akutsu<br>Affiliation(s): Department of Complex Systems, Future University-Hakodate, Japan; Faculty of Engineering, Toyama Prefectural University, Japan; Bioinformatics Center, Institute for Chemical Research, Kyoto University, Japan Tue, 17 Nov 2009 00:00:00 GMT Skyrmion multi-walls http://stacks.iop.org/1751-8121/42/i=48/a=482001?rss=2.0 Author(s): J Silva Lobo and R S Ward<br>Affiliation(s): Department of Mathematical Sciences, Durham University, Durham DH1 3LE, UK Tue, 17 Nov 2009 00:00:00 GMT Special issue on Current Trends in Integrability and Nonlinear Phenomena http://stacks.iop.org/1751-8121/42/i=48/a=480201?rss=2.0 Author(s): D Gomez-Ullate, S Lombardo, M Manas, M Mazzocco, F Nijhoff and M Sommacal (Guest Editors)<br>Affiliation(s): Guest Editors Tue, 17 Nov 2009 00:00:00 GMT On the electromagnetic properties of matter in collapse models http://stacks.iop.org/1751-8121/42/i=48/a=485302?rss=2.0 Author(s): Angelo Bassi and Detlef Durr<br>Affiliation(s): Department of Physics, University of Trieste, Strada Costiera 11, 34151 Trieste, Italy Istituto Nazionale di Fisica Nucleare, Trieste Section, Via Valerio 2, 34127 Trieste, Italy; Mathematisches Institut der LMU, Theresienstr. 39, 80333 Munchen, Germany Tue, 17 Nov 2009 00:00:00 GMT