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Ruijsenaars wavefunctions as modular group matrix coefficients. [PDF]

open access: yesLett Math Phys
Di Francesco P   +4 more
europepmc   +1 more source

Duality under dependency inversion and noether theory for second-order lagrangians

open access: closedInternational Journal of Solids and Structures, 1986
Abstract We consider the duality which is obtained by interchanging dependent and independent variables in a Lagrangian. This duality is studied here for a second-order Lagrangian, which could describe, e.g. a Euler- Bernoulli beam (more generally, a one-dimensional elastic body of higher grade); however, the essential theory follows purely formally ...
R. Rösel
openaire   +3 more sources

Duality Theory fornth Order Differential Operators under Stieltjes Boundary Conditions

open access: closedSIAM Journal on Mathematical Analysis, 1975
The adjoint of an nth order vector-valued linear differential system with boundary conditions represented by singular matrix-valued measures is constructed when the system is viewed as an operator with domain and range in a space of $L^p $ integrable functions. Both the operator and its adjoint are shown to be normally solvable.
Richard C. Brown
openaire   +3 more sources

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