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A graph associated to proper non-small ideals of a commutative ring
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- In this paper, a new kind of graph on a commutative ring is introduced and investigated. Small inter...
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10.14712/1213-7243.2015.189
- 作 者：
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S. Ebrahimi Atani ; ...
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Commentationes mathematicae Universitatis Carolinae
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The prime ideals intersection graph of a ring
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- Let $R$ be a commutative ring with unity and $U(R)$ be the set of unit elements of $R$. In this pape...
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10.14712/1213-7243.2015.205
- 作 者：
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M. J. Nikmehr ; B. S...
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Commentationes mathematicae Universitatis Carolinae
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The weak Gelfand-Phillips property in spaces of compact operators
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- For Banach spaces $X$ and $Y$, let $K_{w^*}(X^*,Y)$ denote the space of all $w^* - w$ continuous com...
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10.14712/1213-7243.2015.195
- 作 者：
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Ioana Ghenciu
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Commentationes mathematicae Universitatis Carolinae
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Some constructions of biharmonic maps on the warped product manifolds
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- In this paper, we characterize a class of biharmonic maps from and between product manifolds in term...
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10.14712/1213-7243.2015.221
- 作 者：
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Abdelmadjid Bennouar...
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Commentationes mathematicae Universitatis Carolinae
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Radon-Nikodym property
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- For a Banach space $E$ and a probability space $(X, \\mathcal{A}, \\lambda)$, a new proof is given t...
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10.14712/1213-7243.2015.228
- 作 者：
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Surjit Singh Khurana...
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Commentationes mathematicae Universitatis Carolinae
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Combinatorics of ideals --- selectivity versus density
- 摘要：
- This note is devoted to combinatorial properties of ideals on the set of natural numbers. By a resul...
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10.14712/1213-7243.2015.203
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A. Kwela ; P. Zakrze...
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- 期刊标题：
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Commentationes mathematicae Universitatis Carolinae
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A note on spaces with countable extent
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- Let $P$ be a topological property. A space $X$ is said to be {\\it star P\\/} if whenever $\\mathcal...
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10.14712/1213-7243.2015.211
- 作 者：
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Yan-kui Song
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- 期刊标题：
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Commentationes mathematicae Universitatis Carolinae
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Order-theoretic propertiesof some sets of quasi-measures
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- Let $\\mathfrak M$ and $\\mathfrak R$ be algebras of subsets of a set $\\Omega $ with $\\mathfrak M\...
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10.14712/1213-7243.2015.208
- 作 者：
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Zbigniew Lipecki
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- 期刊标题：
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Commentationes mathematicae Universitatis Carolinae
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Linear extenders and the Axiom of Choice
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- In set theory without the Axiom of Choice {\\bf ZF}, we prove that for every commutative field $\\ma...
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10.14712/1213-7243.2015.223
- 作 者：
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Marianne Morillon
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- 期刊标题：
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Commentationes mathematicae Universitatis Carolinae
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Resolvability in c.c.c. generic extensions
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- Every crowded space $X$ is ${\\omega}$-resolvable in the c.c.c.\\ generic extension $V^{\\operatorna...
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10.14712/1213-7243.2015.226
- 作 者：
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Lajos Soukup ; Adrie...
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- 期刊标题：
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Commentationes mathematicae Universitatis Carolinae
