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- California Institute of TechnologyUS4 papers
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5 papers · 1 filter
Coherence, local quasiconvexity, and the perimeter of 2-complexes
Jonathan P. McCammond, Daniel T. Wise
A group is coherent if all its finitely generated subgroups are finitely presented. In this article we provide a criterion for positively determining the coherence of a group. This…
A Gel'fond type criterion in degree two
Benoit Arbour, Damien Roy
We establish a criterion for a complex number to be algebraic over Q of degree at most two. It requires that, for any sufficiently large real number X, there exists a non-zero poly…
Recent Globular Cluster Searches with Arecibo and the Green Bank Telescope
S. M. Ransom, J. W. T. Hessels, I. H. Stairs +4
We report the discovery of seven new millisecond pulsars during 20 cm searches of 19 globular clusters using the recently upgraded Arecibo Telescope and the new Green Bank Telescop…
The Massive Binary Pulsar J1740-3052
I. H. Stairs, R. N. Manchester, A. G. Lyne +4
The young pulsar J1740-3052 is in an 8-month orbit with a companion of at least 11 solar masses. We present multifrequency GBT and Parkes timing observations, and discuss implicati…
Rates of reconnection in pulsar winds
Maxim Lyutikov
Using the formulation of relativistic reconnection by Lyutikov & Uzdensky (2002) we estimate the upper possible rates of reconnection in pulsar winds using Bohm prescription for re…