Deference
发表于 2025-3-26 22:49:21
On Inversion of Fractional Spherical Potentials by Spherical Hypersingular Operators,A new proof of the inversion formula for spherical Riesz type fractional potentials in the case 0 <.2 is presented and a constructive reduction of the case lRa > 2 to the case 0 < lia < 2 is given.
infringe
发表于 2025-3-27 01:42:21
Albrecht Böttcher,Marinus A. Kaashoek,Frank-Olme S12th IWOTA-Proceedings traditionally published in the OT series.Selected and thoroughly refereed contributions
漂浮
发表于 2025-3-27 07:45:29
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言外之意
发表于 2025-3-27 12:24:00
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Somber
发表于 2025-3-27 16:40:09
On the Essential Spectrum of Toeplitz Operators with Semi-Almost Periodic Symbols,esult by Sarason enables us to decide whether the Toeplitz operator.λ) is Fredholm for a given point a in the plane, but the problem of characterizing the set of.λ for which.λ) is not Fredholm is nevertheless intricate. This question is studied in the present paper.
Mechanics
发表于 2025-3-27 21:05:52
Noncanonical Factorizations of Almost Periodic Multivariable Matrix Functions,the associated Toeplitz operators. The last section is devoted to uses of factorization for normalization of bases, an important problem in wavelets and other applications. Conjectures and open problems are stated.
不理会
发表于 2025-3-27 23:45:18
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残酷的地方
发表于 2025-3-28 03:07:12
Invertibility of Functional Operators with Slowly Oscillating Non-Carleman Shifts,only two fixed points 0 and 1. We suppose that log a’ is bounded and continuous on (0, 1) and that a, b, a’ slowly oscillate at 0 and 1. The main difficulty connected with slow oscillation is overcome by using the method of limit operators.
Precursor
发表于 2025-3-28 08:11:49
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珠宝
发表于 2025-3-28 12:06:55
An Axiomatic Approach to the Limit Operators Method,, we derive necessary and sufficient conditions for these operators to be semi-Fredholm or Fredholm. As another application, we obtain necessary and sufficient conditions for the semi-Fredholmness and Fredholmness of pseudodifferential operators.