Results 41 to 50 of about 585,597 (266)
Some special characterisations of Fredholm operators in Banach space
Bibechana, 2014 A bounded linear operator which has a finite index and which is defined on a Banach space is often referred to in the literature as a Fredholm operator. Fredholm operators are important for a variety of reasons, one being the role that their index plays
Mahendra Shahi
doaj +3 more sources
On semiprime rings of bounded index [PDF]
Proceedings of the American Mathematical Society, 1982 A ring R R is of bounded index (of nilpotency) if there is an integer n ⩾ 1 n \geqslant 1 such that x n = 0 {x^n} = 0 whenever x ∈ R x \in R is nilpotent. The least
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The unbounded commutant of an operator of class C_0
, 2009 We describe the closed, densely defined linear transformations commuting with a given operator T of class C_0 in terms of bounded operators in {T}'.
Bercovici, Hari
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Sums of Functions of Bounded Index [PDF]
Proceedings of the American Mathematical Society, 1969 Introduction. The notion of entire functions of bounded index has been studied by several authors in a number of recent papers [1], [2], [3], [4]. Little is known about the properties of such functions, and, in particular, the following "natural" question (which is answered in this note) does not appear to have been studied. Is the sum of two functions
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The ranks of central factor and commutator groups
, 2012 The Schur Theorem says that if $G$ is a group whose center $Z(G)$ has finite index $n$, then the order of the derived group $G'$ is finite and bounded by a number depending only on $n$. In the present paper we show that if $G$ is a finite group such that
Adian +6 more
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Croatica Chemica Acta, 2008 The Balaban index of a connected (molecular) graph G is defined as [GRAPHICS], where m is the number of edges, mu is the cyclomatic number, D-u is the sum of distances between vertex u and all other vertices of G, and the summation goes over all edges from the edge set E(G).
Zhou, Bo, Trinajstić, Nenad
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Entropy zero area preserving diffeomorphisms of $S^2$
, 2012 In this paper we formulate and prove a structure theorem for area preserving diffeomorphisms of genus zero surfaces with zero entropy. As an application we relate the existence of faithful actions of a finite index subgroup of the mapping class group of ...
Bowen +14 more
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Stronger 3SUM-Indexing Lower Bounds
, 2023 The 3SUM-Indexing problem was introduced as a data structure version of the 3SUM problem, with the goal of proving strong conditional lower bounds for static data structures via reductions. Ideally, the conjectured hardness of 3SUM-Indexing should be replaced by an unconditional lower bound.
Chung, Eldon, Larsen, Kasper Green
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Bounded index and summability methods [PDF]
Journal of the Australian Mathematical Society, 1976 An entire function f(z) is of bounded index if there exists a non-negative integer N such that . The least such integer N is called the index of f (se Lepson (1966)).
Fricke, G. H., Powell, R. E.
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Clinical Insights Into Hypercalcemia of Malignancy in Childhood
Pediatric Blood &Cancer, EarlyView.ABSTRACT Hypercalcemia of malignancy (HCM) is a rare but life‐threatening metabolic emergency in children that occurs in less than 1% of pediatric cancer cases, with a reported incidence ranging from 0.4% to 1.0% across different studies. While it is observed in 10%–20% of adult malignancies, pediatric HCM remains relatively uncommon.
Hüseyin Anıl Korkmaz
wiley +1 more source