In the first part, we prove that the number of (1, β)-BM relations is 3 ·5 · . . . · (2β+1), which was conjectured by Jason Kimberley. In the second part, we construct two isomorphisms between certain (2, 2)-BM groups. This completes the classification of (2, 2)-BM groups initiated in [4].

The ionosphere research team of Xi'an University Science and Technology (XUST) has been committing to high-precision global ionospheric modeling since 2012. agency adopted spherical harmonic functions generate GNSS (Global Navigation Satellite System) product XANG multi-source data fusion XAMG. In this essay, we take International Service (IGS) maps (GIMs) products as a reference verify analyze...

In Greek mythology, Medea betrays her homeland to assist her lover, the adventurer Jason, to obtain the Golden fleece. In exile she bears him two children, but later discovers that Jason plans to marry the King of Corynth’s daughter, so that their future children will become heirs to the throne. Seeking revenge, Medea poisons the bride and slaughters her children, leaving Jason with no chances ...

Current trends in computer science such as the semantic web, ubiquitous computing, and self-* systems make it increasingly important that programming technology suitable for open, unpredictable, dynamic environments are made available. Many abstractions and techniques that emerged from research in multi-agent systems can have major impact in the effectiveness of (the development of) such system...

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Much of my research in computational linguistics has been bound up with two emerging strategies of the 1990’s: statistical optimality and phonological optimality. Statistics properly used can translate and enrich linguistic theories—rather than replacing them—and can connect those theories to processing models. That is, the statistical worldview need not be tied to simplistic engineering tricks...

ii Acknowledgments David Sjoquist and Sally Wallace made helpful comments on an earlier draft.

The main limitations of standard nadir-looking radar altimeters have been known for long. They include the lack of coverage (intertrack distance of typically 150 km for the T/P / Jason tandem), and the spatial resolution (typically 2 km for T/P and Jason), expected to be a limiting factor for the determination of mesoscale phenomena in deep ocean. In this context, various solutions using off-na...