Results 81 to 90 of about 883 (177)
Thiophenderivate als vielseitige Vorstufen für die Synthese von (Hetero)aromaten und Naturstoffen
Angewandte Chemie, Volume 138, Issue 5, 28 January 2026.Verborgen, aber leistungsstark: Thiophene und ihre gesättigten Analoga haben sich als vielseitige C4‐Bausteine erwiesen, die sich effektiv in der Naturstoffsynthese sowie beim Aufbau funktionalisierter (Hetero)aromaten einsetzen lassen. Dieser Minireview soll einen Überblick über Strategien zur Anwendung dieser schwefelhaltigen heterozyklischen ...
Anna Keimer, Franz‐Lucas Haut
wiley +1 more source
Nonlinear Evolution Equations of the Soliton Type: Old and New Results
ProceedingsAn overview on the study of nonlinear evolution equations of soliton type is provided. In addition, 5th-order nonlinear evolution equations are shown to be connected to the Caudrey–Dodd–Gibbon–Sawada–Kotera (CDGSK) equation via Bäcklund transformations ...
Sandra Carillo +2 more
doaj +1 more source
Nonlocal symmetries of Frobenius sinh-Gordon systems
Advances in Difference Equations, 2018 In this paper, we consider a weakly coupled sinh-Gordon equation which takes values in a commutative Frobenius subalgebra of gl(2,C) $gl(2,\mathbb {C})$.
Huijuan Zhou +3 more
doaj +1 more source
Nonlinear evolution equations: Bäcklund transformations and recursion operators [PDF]
, 1996 The important role played by Bäcklund transformations in investigating nonlinear evolution equations is well known (see, for ...
Sandra Carillo
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Hodge-Frobenius equations and the Hodge–Bäcklund transformation [PDF]
, 2010 Linear and nonlinear Hodge-like systems for 1-forms are studied with an assumption equivalent to complete integrability substituted for the requirement of closure under exterior differentiation.
Antonella Marini +3 more
core +1 more source
Ain Shams Engineering JournalThis article discusses a new integrable wave equation in (3+1)-dimensions that describes shallow water waves. The auto–Bäcklund and Cole-Hopf transformations are constructed by means of the homogeneous balance approach, which results in numerous new ...
Adil Jhangeer +4 more
doaj +1 more source
On the One Class of Hyperbolic Systems
Symmetry, Integrability and Geometry: Methods and Applications, 2006 The classification problem is solved for some type of nonlinear lattices. These lattices are closely related to the lattices of Ruijsenaars-Toda type and define the Bäcklund auto-transformations for the class of two-component hyperbolic systems.
Vsevolod E. Adler, Alexey B. Shabat
doaj
Quantum Painlevé Equations: from Continuous to Discrete
Symmetry, Integrability and Geometry: Methods and Applications, 2008 We examine quantum extensions of the continuous Painlevé equations, expressed as systems of first-order differential equations for non-commuting objects. We focus on the Painlevé equations II, IV and V.
Alfred Ramani +2 more
doaj +1 more source
Momentum conserving defects in affine Toda field theories
Journal of High Energy Physics, 2017 Type II integrable defects with more than one degree of freedom at the defect are investigated. A condition on the form of the Lagrangian for such defects is found which ensures the existence of a conserved momentum in the presence of the defect.
Rebecca Bristow, Peter Bowcock
doaj +1 more source
Bäcklund transformations for the anti-self-dual Yang-Mills equations [PDF]
, 1988 Beginning from any given (local) solution of the GL(n,ℂ) anti-self-dual Yang-Mills (ASDYM) equations on Minkowski space, a simple technique for the generation of large classes of solutions (perhaps in some sense all) is given.
Newman, ET, Chakravarty, S, Mason, L
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