Matrices which commute with a given matrix upon a subspace
Beitia, Maria Asunción (1985-1986)
Portugaliae mathematica
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Beitia, Maria Asunción (1985-1986)
Portugaliae mathematica
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Milan Práger (1993)
Applications of Mathematics
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The scalar product of the FEM basis functions with non-intersecting supports vanishes. This property is generalized and the concept of local bilinear functional in a Hilbert space is introduced. The general form of such functionals in the spaces and is given.
Gunraj Prasad, Harvir S. Kasana (1987)
Archivum Mathematicum
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Jaroslav Kurzweil (1971)
Časopis pro pěstování matematiky
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