Results 51 to 60 of about 1,062,474 (215)
Atomic, molecular and wavelet decomposition of generalized 2-microlocal Besov spaces
Journal of Function Spaces and Applications, 2010 We introduce generalized 2-microlocal Besov spaces and give characterizations in decomposition spaces by atoms, molecules and wavelets. We apply the wavelet decomposition to prove that the 2-microlocal spaces are invariant under the action of ...
Henning Kempka
doaj +1 more source
An index theorem for families invariant with respect to a bundle of Lie groups [PDF]
, 2000 We define the equivariant family index of a family of elliptic operators invariant with respect to the free action of a bundle $\GR$ of Lie groups. If the fibers of $\GR \to B$ are simply-connected solvable, we then compute the Chern character of the ...
Nistor, Victor
core +1 more source
Pseudodifferential Operators on SU(2)
Journal of Fourier Analysis and Applications, 1996 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Geshwind, Frank, Katz, Nets Hawk
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Pseudodifferential operators on stratified manifolds [PDF]
Differential Equations, 2007 We consider a specific class of manifolds with singularities, namely, stratified manifolds, and describe a class of pseudodifferential operators (PsiDO) related to differential operators with degeneration of first-order with respect to the distance to the strata on such manifolds.
Nazaikinskii, V. E. +2 more
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Fredholm criteria for pseudodifferential operators and induced representations of groupoid algebras [PDF]
, 2016 We characterize the groupoids for which an operator is Fredholm if, and only if, its principal symbol and all its boundary restrictions are invertible. A groupoid with this property is called {\em Fredholm}.
V. Nistor
semanticscholar +1 more source
W‐algebras, Gaussian free fields, and g$\mathfrak {g}$‐Dotsenko–Fateev integrals
Proceedings of the London Mathematical Society, Volume 131, Issue 6, December 2025.Abstract Based on the intrinsic connection between Gaussian free fields and the Heisenberg vertex algebra, we study some aspects of the correspondence between probability theory and W$W$‐algebras. This is first achieved by providing a construction of the W$W$‐algebra associated to a complex simple Lie algebra g$\mathfrak {g}$ by means of Gaussian free ...
Baptiste Cerclé
wiley +1 more source
Advances in Mathematical Physics, 2015 We review some aspects of the theory of Lie algebras of (twisted and untwisted) formal pseudodifferential operators in one and several variables in a general algebraic context.
Jarnishs Beltran, Enrique G. Reyes
doaj +1 more source
Some estimates for commutators of bilinear pseudo-differential operators
Open Mathematics, 2022 We obtain a class of commutators of bilinear pseudo-differential operators on products of Hardy spaces by applying the accurate estimates of the Hörmander class. And we also prove another version of these types of commutators on Herz-type spaces.
Yang Yanqi, Tao Shuangping
doaj +1 more source
A few remarks on time-frequency analysis of Gevrey, analytic and ultra-analytic functions
, 2012 We give a brief survey of recent results concerning almost diagonalization of pseudodifferential operators via Gabor frames. Moreover, we show new connections between symbols with Gevrey, analytic or ultra-analityc regularity and time-frequency analysis ...
Cordero, Elena +2 more
core +1 more source
Determinants of classical SG‐pseudodifferential operators [PDF]
Mathematische Nachrichten, 2013 We introduce a generalized trace functional TR in the spirit of Kontsevich and Vishik's canonical trace for classical SG‐pseudodifferential operators on and suitable manifolds, using a finite‐part integral regularization technique. This allows us to define a zeta‐regularized determinant for parameter‐elliptic operators , , . For , the asymptotics of
L. Maniccia, E. Schrohe, SEILER, JOERG
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