We prove a matrix inequality for matrix monotone functions, and apply it to prove a singular value inequality for Heinz means recently conjectured by X. Zhan.

We prove a matrix inequality for matrix monotone functions, and apply it to prove a singular value inequality for Heinz means recently conjectured by X. Zhan.

BACKGROUND Inappropriate prescribing in the elderly is common, but rates across different health care systems and the impact of formulary restrictions are not well described. OBJECTIVE To determine if rates of inappropriate medication use in the elderly differ between the Veterans Affairs (VA) health care system and the private sector Medicare health maintenance organization (HMO) patients. ...

presentation 1. Iiizumi M, Bandyopadhyay S, Hirota, S, Hosobe, S, Tsukada T, Miura K, Saito K, Watabe M, Furuta E, Zhan R, Pai S, Mohinta S and Watabe K. (Apr. 2006) Expression of RhoC correlates with metastatic disease and survival of prostate cancer patients American Association for Cancer Research. Washington DC 2. Bandyopadhyay, S., Zhan, Z., Wang, Y., Pai, SK., Hirota, S., Hosobe, S., Taka...

Strategic shading of bids is typically viewed as a factor degrading the efficiency of auction outcomes. In continuous double auctions (CDAs), however, strategic bid-shading can actually improve allocative efficiency, as it counteracts the inherent inefficiency of CDAs induced by vagaries in order arrival sequence. This has been demonstrated most clearly in a standard CDA model by Zhan and Fried...

Zhan et al. (2014a) reported supershear rupture during the Mw 6.7 aftershock of the 2013 Mw 8.3 Sea of Okhotsk deep earthquake, relying heavily on the regional station PET, which played a critical role in constraining the vertical rupture dimension and rupture speed. Here we include fivemore regional stations and find that the durations of the source time functions derived from these stations a...

Zhang Wen , Guanhua Huang *, Hongbin Zhan c a Department of Irrigation and Drainage, College of Water Conservancy and Civil Engineering, China Agricultural University, Beijing, 100083, PR China b Chinese–Israeli International Center for Research in Agriculture, China Agricultural University, Beijing, 100083, PR China c Department of Geology and Geophysics, Texas A&M University, College Station,...

X. Zhan has conjectured that the spectral radius of the Hadamard product of two square nonnegative matrices is not greater than the spectral radius of their ordinary product. We prove Zhan’s conjecture, and a related inequality for positive semidefinite matrices, using standard facts about principal submatrices, Kronecker products, and the spectral radius.