Results 31 to 40 of about 3,164,214 (296)
Cm-smoothness of invariant fiber bundles for dynamic equations on measure chains [PDF]
, 2004 We present a new self-contained and rigorous proof of the smoothness of invariant fiber bundles for dynamic equations on measure chains or time scales.
Stefan Siegmund +5 more
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Optimal systems and group invariant solutions for a model arising in financial mathematics
Mathematical Modelling and Analysis, 2009 We consider a bond‐pricing model described in terms of partial differential equations (PDEs). Classical Lie point symmetry analysis of the considered PDEs resulted in a number of point symmetries being admitted.
Bienvenue Feugang Nteumagne +1 more
doaj +1 more source
Scaling to generalize a single solution of Richards' equation for soil water redistribution
Scientia Agricola, 2011 Using scaling methods, a single solution of Richards' equation (RE) will suffice for numerous specific cases of water flow in unsaturated soils. In this study, a new method is developed to scale RE for the soil water redistribution process.
Morteza Sadeghi +4 more
doaj +1 more source
Exact Solutions of Newell-Whitehead-Segel Equations Using Symmetry Transformations
Journal of Function Spaces, 2021 In this article, Lie and discrete symmetry transformation groups of linear and nonlinear Newell-Whitehead-Segel (NWS) equations are obtained. By using these symmetry transformation groups, several group invariant solutions of considered NWS equations ...
Khudija Bibi, Khalil Ahmad
doaj +1 more source
Lie symmetries and reductions via invariant solutions of general short pulse equation
Frontiers in Physics, 2023 Around 1880, Lie introduced an idea of invariance of the partial differential equation (PDE) under one-parameter Lie group of transformation to find the invariant, similarity, or auto-model solutions.
Muhammad Mobeen Munir +2 more
doaj +1 more source
Rotationally invariant texture based features [PDF]
, 2001 Content-based retrieval is ultimately dependent on the features used for the annotation of data and its efficiency is dependent on the invariance and robust properties of these features.
Hill, PR +5 more
core +1 more source
Invariant solutions to the Strominger system and the heterotic equations of motion
Nuclear Physics B, 2017 We construct many new invariant solutions to the Strominger system with respect to a 2-parameter family of metric connections ∇ε,ρ in the anomaly cancellation equation.
Antonio Otal +2 more
doaj +1 more source
Entire invariant solutions to Monge-Ampere equations
, 2004 We prove existence and regularity of entire solutions to Monge-Ampere equations invariant under an irreducible action of a compact Lie ...
Bielawski, R.
core +4 more sources
Explicit Solutions of the Invariance Equation for Means [PDF]
Results in Mathematics, 2016 Extending the notion of projective means we first generalize an invariance identity related to the Carlson log given in a recent paper of P. Kahlig and J. Matkowski, and then, more generally, given a bivariate symmetric, homogeneous and monotone mean M, we give explicit formula for a rich family of pairs of M-complementary means.
Matkowski, Janusz +2 more
openaire +2 more sources
Invariant cones in solvable Lie algebras [PDF]
, 1992 Poguntke D. Invariant cones in solvable Lie algebras. Mathematische Zeitschrift.
Poguntke, Detlev
core +1 more source