Complex matrices: |
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Number field
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Real or complex
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Space of square matrices in
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Space of real symmetric matrices |
0 |
matrix with all coefficients equal to zero (disk origin) |
Fröbenius norm |
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Operator norm |
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Domains: |
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Cone of SPD matrices |
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Siegel–Poincaré upper plane |
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Siegel–Poincaré disk |
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Distances: |
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Siegel distance |
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Upper plane metric |
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PD distance |
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PD metric |
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Kobayashi distance |
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Translation in the disk |
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Disk distance to origin |
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Siegel–Klein distance |
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(), () |
Seigel-Klein distance to 0 |
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Symplectic maps and groups: |
Symplectic map |
with (upper plane) |
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with (disk) |
Symplectic group |
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group composition law |
matrix multiplication |
group inverse law |
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Translation in of to
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symplectic orthogonal matrices |
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(rotations in ) |
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Translation to 0 in
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Isometric orientation-preserving group of generic space
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group of Möbius transformations |