Results 61 to 70 of about 8,002 (202)

Logarithmic cotangent bundles, Chern‐Mather classes, and the Huh‐Sturmfels involution conjecture

open access: yesCommunications on Pure and Applied Mathematics, Volume 77, Issue 2, Page 1486-1508, February 2024.
Abstract Using compactifications in the logarithmic cotangent bundle, we obtain a formula for the Chern classes of the pushforward of Lagrangian cycles under an open embedding with normal crossing complement. This generalizes earlier results of Aluffi and Wu‐Zhou.
Laurenţiu G. Maxim   +3 more
wiley   +1 more source

Microlocal Asymptotic Analysis in Algebras of Generalized Functions

open access: yes, 2007
We introduce a new type of local and microlocal asymptotic analysis in algebras of generalized functions, based on the presheaf properties of those algebras and on the properties of their elements with respect to a regularizing parameter. Contrary to the
Delcroix, Antoine   +2 more
core   +2 more sources

Microlocal analysis of some isospectral deformations [PDF]

open access: yesTransactions of the American Mathematical Society, 1994
We study the microlocal structure of the examples of isospectral deformations of Riemannian manifolds given by D. DeTurck and C. Gordon in [DeT-Gl]. The Schwartz kernel of the intertwining operators considered by them may be written as an oscillatory integral with a singular phase function and product type amplitude.
openaire   +3 more sources

Decrease in climatic disequilibrium associated with climate change and species abundance shifts in Mediterranean plant communities

open access: yesJournal of Ecology, Volume 112, Issue 2, Page 291-304, February 2024.
The procedure developed to measure climatic disequilibrium reflects demographic behaviours, thus providing a reliable method to assess the impact of climate change on species and communities. The study demonstrates the current, rapid tracking of Mediterranean woody plant communities to climate change. This tracking results from changes in the abundance
María Angeles Pérez‐Navarro   +4 more
wiley   +1 more source

Analysis of the Energy Decay of a Degenerated Thermoelasticity System

open access: yes, 2012
In this paper, we study a system of thermoelasticity with a degenerated second order operator in the Heat equation. We analyze the evolution of the energy density of a family of solutions.
Atallah-Baraket, Amel   +1 more
core   +1 more source

Analysis of Inpainting via Clustered Sparsity and Microlocal Analysis [PDF]

open access: yes, 2012
Recently, compressed sensing techniques in combination with both wavelet and directional representation systems have been very effectively applied to the problem of image inpainting.
King, Emily J.   +2 more
core  

Optimal sparsity allows reliable system-aware restoration of fluorescence microscopy images. [PDF]

open access: yesSci Adv, 2023
Mandracchia B   +8 more
europepmc   +1 more source

On the microlocal analysis of the geodesic X-ray transform with conjugate points [PDF]

open access: yes, 2015
We study the microlocal properties of the geodesic X-ray transform $\mathcal{X}$ on a manifold with boundary allowing the presence of conjugate points. Assuming that there are no self-intersecting geodesics and all conjugate pairs are nonsingular we show
Holman, Sean, Uhlmann, Gunther
core  

Inverse problems and microlocal analysis [PDF]

open access: yesJournées équations aux dérivées partielles, 1991
In this lecture we discuss some recent problems in inverse scattering for the two-body Schrödinger operator \(H_ v=H_ 0+v\) in \(\mathbb{R}^ n\) where \(H_ 0=-\Delta\). The main part of the presentation will be devoted to the definition of exceptional points for \(H_ v\) and a study of the geometrical properties of the set \({\mathcal E}\) of such ...
openaire   +2 more sources

Home - About - Disclaimer - Privacy