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Questions about the properties of vector spaces and linear transformations, including linear systems in general.

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Cauchy-Schwarz inequality for bilinear forms valued in an abstract vector space

Once I suggested that the TRANSFER PRINCIPLE exists by which some classical inequalities for numbers are transferred for vector lattices. It was proved in the paper: Kusraev A. G. A tranfer principle …
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3 votes
1 answer
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Inverse Hadamard determinant inequality

As far as I remembered there is an inverse Hadamard inequality for the determinant of the form $$ |D|>\prod_j \sqrt{(a_{jj}^2-\sum_{i\neq j}a_{ij}^2)} $$ providing all values in $(\cdot)>0$. Please h …
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