Results 11 to 20 of about 8,002 (202)

A materialist take on minoritization, emancipation, and language revitalization: Occitan sociolinguistics since the 1970s

open access: yesJournal of Sociolinguistics, Volume 27, Issue 4, Page 327-344, September 2023., 2023
Abstract This paper introduces and discusses Occitan sociolinguistics as it evolved from the 1970s onward as a theory of language contact as conflict. It was developed in conjunction with its Catalan counterpart and as a reaction to Joshua Fishman's allocational model of diglossia, and came as a response to conditions of swift social and linguistic ...
James Costa
wiley   +1 more source

Monodromy conjecture for semi‐quasihomogeneous hypersurfaces

open access: yesMathematische Nachrichten, Volume 296, Issue 4, Page 1394-1403, April 2023., 2023
Abstract We give a proof of the monodromy conjecture relating the poles of motivic zeta functions with roots of b‐functions for isolated quasihomogeneous hypersurfaces, and more generally for semi‐quasihomogeneous hypersurfaces. We also give a strange generalization allowing a twist by certain differential forms.
Guillem Blanco   +2 more
wiley   +1 more source

An application of internal objects to microlocal analysis in generalized function algebras [PDF]

open access: yes, 2016
We illustrate the use of internal objects in the nonlinear theory of generalized functions by means of an application to microlocal analysis in Colombeau algebras.Comment: 14 ...
Vernaeve, Hans
core   +3 more sources

On a class of pseudodifferential operators on the product of compact Lie groups

open access: yesMathematische Nachrichten, Volume 296, Issue 1, Page 217-242, January 2023., 2023
Abstract In this paper, a bisingular pseudodifferential calculus, along the lines of the one introduced by L. Rodino in his paper of 1975, is developed in the global setting of a product of compact Lie groups. The approach follows that introduced by M. Ruzhansky and V. Turunen in their book of 2010 (see also V.
Serena Federico, Alberto Parmeggiani
wiley   +1 more source

100 years of Weyl’s law

open access: yesBulletin of Mathematical Sciences, 2016
We discuss the asymptotics of the eigenvalue counting function for partial differential operators and related expressions paying the most attention to the sharp asymptotics.
Victor Ivrii
doaj   +1 more source

The Multifractal Nature of Volterra-L\'{e}vy Processes [PDF]

open access: yes, 2014
We consider the regularity of sample paths of Volterra-L\'{e}vy processes. These processes are defined as stochastic integrals $$ M(t)=\int_{0}^{t}F(t,r)dX(r), \ \ t \in \mathds{R}_{+}, $$ where $X$ is a L\'{e}vy process and $F$ is a deterministic real ...
Neuman, Eyal
core   +1 more source

Spectral asymptotics for sub-Riemannian Laplacians. I: quantum ergodicity and quantum limits in the 3D contact case [PDF]

open access: yes, 2017
This is the first paper of a series in which we plan to study spectral asymptotics for sub-Riemannian Laplacians and to extend results that are classical in the Riemannian case concerning Weyl measures, quantum limits, quantum ergodicity, quasi-modes ...
de Verdière, Yves Colin   +2 more
core   +3 more sources

Microlocal Analysis and Interacting Quantum Field Theories: Renormalization on Physical Backgrounds [PDF]

open access: yes, 1999
We present a perturbative construction of interacting quantum field theories on any smooth globally hyperbolic manifold. We develop a purely local version of the Stueckelberg-Bogoliubov-Epstein-Glaser method of renormalization using techniques from ...
Brunetti, Romeo, Fredenhagen, Klaus
core   +1 more source

Adiabatic Limit, Heat Kernel and Analytic Torsion [PDF]

open access: yes, 2018
We study the uniform behavior of the heat kernel under the adiabatic limit using microlocal analysis and apply it to derive a formula for the analytic torsion.
Dai, Xianzhe, Melrose, Richard B
core   +1 more source

Refined and microlocal Kakeya-Nikodym bounds for eigenfunctions in two dimensions [PDF]

open access: yes, 2014
We obtain some improved essentially sharp Kakeya-Nikodym estimates for eigenfunctions in two-dimensions. We obtain these by proving stronger related microlocal estimates involving a natural decomposition of phase space that is adapted to the geodesic ...
Christopher, D. Sogge, Matthew D. Blair
core   +1 more source

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