Results 21 to 30 of about 720 (61)

Classical nonintegrability of a quantum chaotic SU(3) Hamiltonian system

, 2009
We prove nonintegrability of a model Hamiltonian system defined on the Lie algebra $\mathfrak{su}_3$ suitable for investigation of connections between classical and quantum characteristics of chaos.Comment: 17 ...
Adam Sawicki, Almeida, Audin, Bohigas, Crespo, Georgi, Gnutzmann, Gnutzmann, Guillemin, Gutzwiller, Haake, Kaplansky, Kimura, Kirillov, Kolchin, Kovacic, Maciejewski, Maciejewski, Marek Kuś, Mehta, Morales-Ruiz, Pechukas, Perelomov, Poincaré, Pommaret, Saenz, Schäfer, Simon, Yukawa, Ziglin, Ziglin   +30 more
core   +1 more source

Créer les conditions de possibilité de la réussite de tous les élèves [PDF]

, 2012
National ...
Guével, Marie-Renée, Jourdan, Didier, Pironom, Julie, Pommier, Jeanine   +3 more
core  

Curvature on the integers, I

, 2015
Starting with a symmetric/antisymmetric matrix with integer coefficients (which we view as an analogue of a metric/form on a principal bundle over the "manifold" Spec Z) we introduce arithmetic analogues of Chern connections and their curvature (in which
Barrett, Malik, Buium, Alexandru
core   +1 more source

Non-integrability of the Armbruster-Guckenheimer-Kim quartic Hamiltonian through Morales-Ramis theory [PDF]

, 2017
We show the non-integrability of the three-parameter Armburster-Guckenheimer-Kim quartic Hamiltonian using Morales-Ramis theory, with the exception of the three already known integrable cases.
Acosta-Humánez, P., Alvarez-Ramírez, M., Stuchi, T.   +2 more
core   +1 more source

Extensions of differential representations of SL(2) and tori

, 2011
Linear differential algebraic groups (LDAGs) measure differential algebraic dependencies among solutions of linear differential and difference equations with parameters, for which LDAGs are Galois groups.
Alexey Ovchinnikov, Andrey Minchenko, Cassidy, Kolchin, Kolchin, Zobnin   +5 more
core   +1 more source

The Differential Counting Polynomial [PDF]

, 2015
The aim of this paper is a quantitative analysis of the solution set of a system of polynomial nonlinear differential equations, both in the ordinary and partial case.
Lange-Hegermann, Markus
core  

On the role of differential algebra in biological modeling [PDF]

, 2008
Extended abstract of an invited talk at Differential Algebra and related Computer Algebra (Catania, Italy, March 28th, 2008)International audienceDifferential algebra is an algebraic theory for studying systems of polynomial ordinary differential ...
Boulier, François
core   +3 more sources

Avaliação do perfil em açúcares do mel de urze (Erica spp.) comercial português [PDF]

, 2017
As abelhas são um exemplo de sucesso evolucionário dos seres vivos, existindo há mais de 125 milhões de anos, e com a capacidade de explorar virtualmente todos os habitais da terra.
Caveiro, Elsa, Falcão, Soraia, Martins, Vitor Manuel Ramalheira, Seijo, M. Carmen, Tomás, Andreia, Vilas-Boas, Miguel   +5 more
core  

Streamlining SARS-CoV-2 confirmatory testing to reduce false positive results. [PDF]

J Clin Virol, 2021
Wilson MJ, Sparkes D, Myers C, Smielewska AA, Husain MM, Smith C, Rolfe KJ, Zhang H, Jalal H.   +8 more
europepmc   +1 more source

Thermal Acclimation to the Highest Natural Ambient Temperature Compromises Physiological Performance in Tadpoles of a Stream-Breeding Savanna Tree Frog. [PDF]

Front Physiol, 2021
Longhini LS, Zena LA, Polymeropoulos ET, Rocha ACG, da Silva Leandro G, Prado CPA, Bícego KC, Gargaglioni LH.   +7 more
europepmc   +1 more source