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111 422 (0,147s) •

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On the abelianization of derived categories and a negative solution to Rosicky's problem

We prove for a large family of rings R that their lambda-pure global dimension is greater than one for each in finite regular cardinal lambda. This answers in the negative a problem posed by Rosicky. The derived categories ...

BA - Obecná matematika

  • 2013
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  • Jx
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  • Link
Result

Minimal tensors and purely electric or magnetic spacetimes of arbitrary dimension

dimension. We study the cases where one of these parts vanishes in detail, i.e., purely to higher dimensions and discuss new features of higher dimensions.We consider time reversal transformation...

BA - Obecná matematika

  • 2013
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  • Jx
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  • Link
Result

Existence of horizons in Robinson-Trautman spacetimes of arbitrary dimension

We derive the higher dimensional generalization of Penrose-Tod equation describing past horizon in Robinson-Trautman spacetimes with a cosmological constant and pure radiation. Results for D = 4 dimensions are summ...

BE - Teoretická fyzika

  • 2012
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  • D
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  • Link
Result

Electric and magnetic Weyl tensors in higher dimensions

Recent results on purely electric (PE) or magnetic (PM) spacetimes in n dimensions are summarized. These include: Weyl types; diagonalizability; conditions under which direct (or warped) products are PE/PM....

BA - Obecná matematika

  • 2014
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  • D
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  • Link
Result

Exact gravitational waves in higher dimensions

to any higher number of dimensions D are investigated. Using the equation of geodesic. With higher dimensions there occur some completely new effects. For example, the tidal deformations caused by higher-...

BE - Teoretická fyzika

  • 2015
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  • D
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  • Link
Result

Ethical dimension of conteporary af globalization an economics

Basic themes of document: globalization; economics; ethical dimension; global rules...

AE - Řízení, správa a administrativa

  • 2009
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  • D
Result

Small sets of complementary observables

of unextendible sets up to dimension 16 and conjecture certain small sets to be unextendible in higher dimensions. Our constructions provide three complementary measurements, only in finite dimensions are useful f...

Optics (including laser optics and quantum optics)

  • 2017
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  • Jimp
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  • Link
Result

Actualization of the Phd Students' Intercultural Competencies In a Context of Globalization

Globalization is changing qualitative characteristics of society, people life and mentality. In relevance to globalization, higher education is gaining new dimensions integrated and harmonious international space o...

AM - Pedagogika a školství

  • 2014
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  • D
Result

Pure projective modules over chain domains with Krull dimension

We will prove that over a chain domain with Krull dimension each pure projective module decomposes into a direct sum of finitely presented modules....

BA - Obecná matematika

  • 2016
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  • Jx
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  • Link
Result

Globalization in the world economy.

Basic themes in document: world economy; globalization; dimension of globalization.

AH - Ekonomie

  • 2003
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