A note on the parallel sum
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By using a variational principle we find a necessary and sufficient condition for an operator to majorise the parallel sum of two positive definite operators. This result is then used as a vehicle to create new operator inequalities involving the parallel sum.
| Original language | English |
|---|---|
| Journal | Linear Algebra and Its Applications |
| Volume | 636 |
| Pages (from-to) | 69-76 |
| ISSN | 0024-3795 |
| DOIs | |
| Publication status | Published - 2022 |
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