Directory UMM :Journals:Journal_of_mathematics:OTHER:
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A sequence of unitary transformations is applied to the one-electron Dirac operator in an external Coulomb potential such that the resulting operator is of the form Λ+A Λ+ + Λ − A Λ
For example, in Figure 2 , the horizontal step at positions 4 and 5 corresponds to the 1-distant crossing in the matching in the same position; step 14 in the Schr¨oder path is
The concept of multivalued weakly Picard operator (briefly MWP operator) was introduced in close connection with the successive approximation method and the data dependence
The aim of this paper is to establish the existence of solutions and some prop- erties of set solutions for a Cauchy problem with causal operator in a separable Banach space..
Although aeration and treatment with DHAP enhanced rooting in `Rehovot' and in `Tzfat', respectively, neither technique completely overcame the intrinsic seasonal periodicity in
It is shown that a choice function is ordinally rationalizable if and only if the choice function is ‘‘consistent’’ with the operator, the operator is a closure operator and the
A stochastic cash management system is studied in which the cash flow is modeled by the superposition of a Brownian motion with drift and a compound Poisson process with positive
In this work, conditions are found on the coefficients of the electromagnetic Schr¨odinger operator in divergence form that provide the coincidence of the domain of definition of the
