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20 papers · 1 filter
On properly essential classical conformal diffeomorphism groups
Stefan Müller, Peter Spaeth
We prove that various classical conformal diffeomorphism groups, which are known to be essential [1], are in fact properly essential. This is a consequence of a local criterion on…
Classical aspects of quantum cohomology of generalized flag varieties
Naichung Conan Leung, Changzheng Li
We show that various genus zero Gromov-Witten invariants for flag varieties representing different homology classes are indeed the same. In particular, many of them are classical i…
Negative Thermal Expansion Coefficient of Graphene Measured by Raman Spectroscopy
Duhee Yoon, Young-Woo Son, Heonsik Cheong
The thermal expansion coefficient (TEC) of single-layer graphene is estimated with temperature-dependent Raman spectroscopy in the temperature range between 200 and 400 K. It is fo…
Oxygen adsorption effect on magnetic properties of graphite
D. W. Boukhvalov, S. Moehlecke, R. R. da Silva +1
Both experimental and theoretical studies of the magnetic properties of micrographite and nanographite indicate a crucial role of the partial oxidation of graphitic zigzag edges in…
Scaling of cluster heterogeneity in percolation transitions
Jae Dong Noh, Hyun Keun Lee, Hyunggyu Park
We investigate a critical scaling law for the cluster heterogeneity in site and bond percolations in -dimensional lattices with . The cluster heterogeneity is def…
A compactification of the space of maps from curves
Bumsig Kim, Andrew Kresch, Yong-Geun Oh
We construct a new compactification of the moduli space of maps from pointed nonsingular projective stable curves to a nonsingular projective variety with prescribed ramification i…