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The Theory of Matrices

Volume 2: XI. Complex symmetric, skew-symmetric, and orthogonal matrices: 1. Some formulas for complex orthogonal and unitary matrices 2. Polar decomposition of a complex matrix...

1984 8577 citations

Focus Groups as Qualitative Research

Introduction Focus Groups as Qualitative Method The Uses of Focus Groups Planning and Research Design for Focus Groups Conducting and Analyzing Focus Groups Additional Possibili...

1997 8458 citations

<i>Gaia</i> Data Release 2

Context. We present the second Gaia data release, Gaia DR2, consisting of astrometry, photometry, radial velocities, and information on astrophysical parameters and variability,...

2018 Astronomy and Astrophysics 8216 citations

Fundamentals of heat and mass transfer

Familiarization of students with the physical fundamentals of heat and mass transfer processes and modern practical problems solved within the framework of this theory, the form...

2018 BSU Digital Library (Belarusian State... 8059 citations