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Hochschild Entropy and Categorical Entropy
22 pages.
Kohei Kikuta, Genki Ouchi
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On the Categorical Entropy and the Topological Entropy [PDF]
To an exact endofunctor of a triangulated category with a split-generator, the notion of entropy is given by Dimitrov-Haiden-Katzarkov-Kontsevich, which is a (possibly negative infinite) real-valued function of a real variable. In this paper, we propose a conjecture which naturally generalizes the theorem by Gromov-Yomdin, and show that the categorical
Kikuta, Kohei, Takahashi, Atsushi
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High-Temperature Mechanical Behavior of Cobalt-Free FeMnCrNi(Al) High-Entropy Alloys
The high-temperature properties of new alloys need to be investigated to guide the hot working process. The temperature sensitivity of various microstructures of Fe45Mn15Cr15Ni25 and Fe35Mn15Cr15Ni25Al10 cobalt-free high-entropy alloys was investigated ...
Dan Liu +4 more
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Acknowledgement to Reviewers of Entropy in 2014
The editors of Entropy would like to express their sincere gratitude to the following reviewers for assessing manuscripts in 2014:[...]
Entropy Editorial Office
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Polarity and surface area are two important factors in determining electrochemical performance and are here studied systematically using carbon fiber cloths (CFCs) as electrodes. The CFC polarity is enhanced by plasma treatment that creates polar groups,
Hsin-Jung Tsai +4 more
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Acknowledgement to Reviewers of Entropy in 2016
The editors of Entropy would like to express their sincere gratitude to the following reviewers for assessing manuscripts in 2016.[...]
Entropy Editorial Office
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CrMnFeCoNi high entropy alloys have high fracture toughness at cryogenic temperatures due to deformation twinning but twinning is not active in this alloy at room temperature. Here authors optimize composition and thermomechanical treatments to introduce
Y. H. Jo +7 more
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On behalf of the Editor-in-Chief, Prof [...]
Entropy Editorial Office
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Strain-rate sensitivity of high-entropy alloys and its significance in deformation
Strain-rate dependence in face centered cubic high entropy alloys still remains controversial despite extensive efforts on this topic. Strain-rate sensitivity reflects underlying thermally-activated deformation and the controversy boils down to the ...
Jongun Moon +5 more
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I study the physical nature of traces. Surprisingly, (i) systems separation with (ii) temperature differences and (iii) long thermalization times are sufficient conditions to produce macroscopic traces. Traces of the past are ubiquitous because these conditions are largely satisfied in our universe.
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