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41 papers · 1 filter
MACHO 96-LMC-2: Lensing of a Binary Source in the LMC and Constraints on the Lensing Object
C. Alcock, R. A. Allsman, D. R. Alves +21
We present photometry and analysis of the microlensing alert MACHO 96-LMC-2. The ~3% photometry provided by the Global Microlensing Alert Network follow--up effort reveals a period…
MACHO Project Limits on Black Hole Dark Matter in the 1-30 Solar Mass Range
The Macho collaboration, C. Alcock, R. A. Allsman +22
We report on a search for long duration microlensing events towards the Large Magellanic Cloud. We find none, and therefore put limits on the contribution of high mass objects to t…
The Hopf Rings for KO and KU
Dena S. Cowen Morton, Neil P. Strickland
We compute the mod two homology Hopf rings of the spectra KO and KU. The spaces in these spectra are the infinite classical groups and their coset spaces, and their homology was fi…
Products on MU-modules
Neil P. Strickland
We use the new categories of spectra and MU-modules constructed by Elmendorf, Kriz, Mandell and May to get improved results about multiplicative structures on spectra such as P(n)…
K(n)-local duality for finite groups and groupoids
Neil P. Strickland
We define an inner product (suitably interpreted) on the K(n)-local spectrum LG := L_{K(n)}BG_+, where G is a finite group or groupoid. This gives an inner product on E^*BG_+ for s…
Gross-Hopkins duality
Neil P. Strickland
We give a new and simpler proof of a result of Hopkins and Gross relating Brown-Comenetz duality to Spanier-Whitehead duality in the K(n)-local stable homotopy category.