不连贯 发表于 2025-3-25 03:28:48

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stress-response 发表于 2025-3-25 10:59:53

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Muffle 发表于 2025-3-25 15:28:16

The Dirichlet Problem for Second-Order Quasi-Linear Nonuniformly Elliptic Equations,We wish to investigate the following equation in the bounded domain Ω < E., n ≥ π: . in which .. Let λ(x,u,p) and Λ (x,u,p) be the smallest and largest eigenvalues of the matrix ║ A. (z,u,p)║, so that ..

蚊帐 发表于 2025-3-25 16:12:56

On the Representation of Doubly Stochastic Integral Operators by Means of Disjoint Isomorphisms,A doubly stochastic integral operator is an integral operator of the form ..where k (x,y) is a negative function given on the product M =X × Y of spaces with measures (X,μ) and (Y,v), where . for almost all y ∈ Y and . for almost all x∈X.

Trigger-Point 发表于 2025-3-25 20:48:32

,On Levinson’s Theorem Concerning Families of Analytic Functions,In 1938 N. Levinson proved a theorem that was a far-reaching generalization of the principle of the maximum of the modulus for analytic functions..

解脱 发表于 2025-3-26 03:15:45

,An Operator Calculus Based on The Cauchy—Green Formula, and the Quasi Analyticity of the Classes D(The classical Riesz-Dunford operator calculus (see, e.g., ) defines f (T) only for functions analytic in a neighborhood of the spectrum & (T) of the operator T. For operators with a unitary spectrum another familiar example is the calculus of Wermer .

FECT 发表于 2025-3-26 06:25:28

,Multipliers and Divisors of Cauchy—Stieltjes Integrals,he multiplicative properties of functions g representable in U by an integral of the Cauchy—Stieltjes type: . in which M is a complex Borel measure on U. We denote the set of all such functions g by K. The set K is linear under the ordinary operations of addition of functions and multiplication of a function by a complex number.

美学 发表于 2025-3-26 10:42:58

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少量 发表于 2025-3-26 16:30:33

Multiple Shift Operator with Simple Spectrum,e another and coincide in many important spaces (l., Orlicz, etc.). These hypotheses are closely allied with the possible realization of X by measurable functions and functions having singular measures with limiting rate of decrease of the Fourier coefficients.

Aboveboard 发表于 2025-3-26 19:09:49

Nonstandard Ideals, Unicellularity, and Algebras Associated with a Shift Operator,8, 10, 11]) of the unicellularity of the weighted shift operators and its algebraic treatment. Many of the propositions proved below have been announced in or the shorter communication , and some others are contained in as well.
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查看完整版本: Titlebook: Investigations in Linear Operators and Function Theory; Part I N. K. Nikol’skii Book 1972 Springer Science+Business Media New York 1972