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16 papers · 1 filter
Coplanar k-unduloids are nondegenerate
Karsten Grosse-Brauckmann, Nicholas J. Korevaar, Robert B. Kusner +2
We prove each embedded, constant mean curvature (CMC) surface in Euclidean space with genus zero and finitely many coplanar ends is nondegenerate: there is no nontrivial square-int…
Radio Circular Polarization Produced in Helical Magnetic Fields in Eight Active Galactic Nuclei
D. C. Gabuzda, V. M. Vitrishchak, M. Mahmud +1
Homan & Lister (2006) have recently published circular-polarization (CP) detections for 34 objects in the MOJAVE sample - a set of bright, compact AGN being monitored by the Very L…
Parsec-scale Magnetic-Field Structures in HEAO-1 BL Lacs
P. Kharb, D. Gabuzda, P. Shastri
We present very long baseline interferometry polarization images of an X-ray selected sample of BL Lacertae objects belonging to the first High Energy Astronomy Observatory (HEAO-1…
Optical Photometry and Spectroscopy of the Accretion-Powered Millisecond Pulsar HETE J1900.1-2455
P. Elebert, P. J. Callanan, A. V. Filippenko +4
We present phase resolved optical photometry and spectroscopy of the accreting millisecond pulsar HETE J1900.1-2455. Our R-band light curves exhibit a sinusoidal modulation, at clo…
Totally geodesic submanifolds of the complex and the quaternionic 2-Grassmannians
Sebastian Klein
In this article, I classify the totally geodesic submanifolds in the complex 2-Grassmannians and in the quaternionic 2-Grassmannians. It turns out that for both of these spaces, th…
On the path structure of a semimartingale arising from monotone probability theory
Alexander C. R. Belton
Let be the unique normal martingale such that and \[\mathrm{d}[X]_t=(1-t-X_{t-}) \mathrm{d}X_t+\mathrm{d}t\] and let for all ; the semimartingale…