L'œuvre des tombes militaires
Non-linear programming and the maximum principle for discrete time optimal control problems
Neighborly Maps with Few Vertices.
The single-valued extension property for sums and products of commuting operators
It is shown that the sum and the product of two commuting Banach space operators with Dunford’s property have the single-valued extension property.
О конечных группах, допускающих автоморфизм простого порядка, неподвижные точки которого центральны.
A Maturity-Structured Mathematical Model of Mutation, Acquisition in the Absence of Homeostatic Regulation
Most mammalian tissues are organized into a hierarchical structure of stem, progenitor, and differentiated cells. Tumors exhibit similar hierarchy, even if it is abnormal in comparison with healthy tissue. In particular, it is believed that a small population of cancer stem cells drives tumorigenesis in certain malignancies. These cancer stem cells are derived from transformed stem cells or mutated progenitors that have acquired stem-cell qualities, specifically the ability to self-renew. Similar...
The Kato-type spectrum and local spectral theory
Let be a bounded operator on a complex Banach space . If is an open subset of the complex plane such that is of Kato-type for each , then the induced mapping has closed range in the Fréchet space of analytic -valued functions on . Since semi-Fredholm operators are of Kato-type, this generalizes a result of Eschmeier on Fredholm operators and leads to a sharper estimate of Nagy’s spectral residuum of . Our proof is elementary; in particular, we avoid the sheaf model of Eschmeier and...
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