Results 1 to 10 of about 3,131 (54)

Existence results for a self-adjoint coupled system of nonlinear second-order ordinary differential inclusions with nonlocal integral boundary conditions

Journal of Inequalities and Applications, 2022
A coupled system of nonlinear self-adjoint second-order ordinary differential inclusions supplemented with nonlocal nonseparated coupled integral boundary conditions on an arbitrary domain is studied. The existence results for convex and nonconvex valued
Bashir Ahmad, Amal Almalki, Sotiris K. Ntouyas, Ahmed Alsaedi   +3 more
doaj   +4 more sources

Sharp eigenvalue enclosures for the perturbed angular Kerr-Newman Dirac operator [PDF]

, 2015
A certified strategy for determining sharp intervals of enclosure for the eigenvalues of matrix differential operators with singular coefficients is examined.
Boulton L, Boulton L, Coddington EA, Griesemer M, Reed M, Shargorodsky E   +5 more
core   +3 more sources

Bordism, rho-invariants and the Baum-Connes conjecture [PDF]

, 2005
Let G be a finitely generated discrete group. In this paper we establish vanishing results for rho-invariants associated to (i) the spin-Dirac operator of a spin manifold with positive scalar curvature (ii) the signature operator of the disjoint ...
Paolo Piazza, Paolo Piazza, Thomas Schick, Thomas Schick   +3 more
core   +4 more sources

Higher Structures in M-Theory [PDF]

, 2019
The key open problem of string theory remains its non-perturbative completion to M-theory. A decisive hint to its inner workings comes from numerous appearances of higher structures in the limits of M-theory that are already understood, such as higher ...
Akrami Y., Aspinwall P. S., Awodey S., Baez J. C., Bagger J., Benini M., Bunke U., Carchedi D., Corfield D., D'Auria R., Danielsson U. H., Duff M. J., Duff M. J., Fiorenza D., Goerss P., Kapustin A., Lambek J., Lane S. Mac, Lawvere F. W., Lawvere W., Leinster T., Nikolaus T., Roytenberg D., Schreiber U., Schreiber U., Shulman M., Shulman M., Siegel W., Spalinski J., The Univalent Foundations Program, van Nieuwenhuizen P., Witten E.   +31 more
core   +2 more sources

Tilting theory via stable homotopy theory [PDF]

, 2015
We show that certain tilting results for quivers are formal consequences of stability, and as such are part of a formal calculus available in any abstract stable homotopy theory.
Groth, Moritz, Stovicek, Jan
core   +1 more source

On the behavior of periodic solutions of planar autonomous Hamiltonian systems with multivalued periodic perturbations [PDF]

, 2010
Aim of the paper is to provide a method to analyze the behavior of $T$-periodic solutions $x_\eps, \eps>0$, of a perturbed planar Hamiltonian system near a cycle $x_0$, of smallest period $T$, of the unperturbed system. The perturbation is represented by
Makarenkov, Oleg, Malaguti, Luisa, Nistri, Paolo   +2 more
core   +2 more sources

On the convergence of second order spectra and multiplicity

, 2010
Let A be a self-adjoint operator acting on a Hilbert space. The notion of second order spectrum of A relative to a given finite-dimensional subspace L has been studied recently in connection with the phenomenon of spectral pollution in the Galerkin ...
Abramowitz M., Gohberg I., Kato T., Shargorodsky E.   +3 more
core   +1 more source

1-dimensional Schrodinger operators with complex potentials

, 2020
We discuss 1-dimensional Schrodinger operators with complex and locally integrable potentials that may have an arbitrary behavior at (finite or infinite) endpoints.
Dereziński, Jan, Georgescu, Vladimir
core   +1 more source

Hodge Theory on Metric Spaces [PDF]

, 2011
Hodge theory is a beautiful synthesis of geometry, topology, and analysis, which has been developed in the setting of Riemannian manifolds. On the other hand, spaces of images, which are important in the mathematical foundations of vision and pattern ...
A. Zomorodian, A.B. Lee, B. Eckmann, D. Zhou, E.H. Spanier, F. Chazal, F.R.K. Chung, F.W. Warner, G. Carlsson, G. Carlsson, G. Gilboa, H. Edelsbrunner, J. Cheeger, J. Dodziuk, J. Dodziuk, J. Dodziuk, J. Friedman, J. Lott, J.-C. Hausmann, J.R. Munkres, Laurent Bartholdi, M.F. Atiyah, M.P. do Carmo, Nat Smale, P. Linnell, P. Pansu, R. Bott, R.L. Wilder, R.R. Coifman, S. Lang, S. Smale, S. Smale, Steve Smale, T. Schick, T. Schick, Thomas Schick, W. Dicks, W. Lück, W. Lück, W.V.D. Hodge, X. Jiang   +40 more
core   +2 more sources

Springer theory via the Hitchin fibration [PDF]

, 2011
In this paper, we translate the Springer theory of Weyl group representations into the language of symplectic topology. Given a semisimple complex group G, we describe a Lagrangian brane in the cotangent bundle of the adjoint quotient g/G that produces ...
Borho, David Nadler, Ginzburg, Kashiwara, Keller, Springer, Stasheff   +6 more
core   +1 more source