AbstractIf A and B are bounded selfadjoint operators and AB is trace class, then the absolutely continuous part of A + B is unitarily equivalent to the direct sum of the absolutely continuous parts of A and B
AbstractWe prove that there exist some Sturm–Liouville operators with square summable potentials suc...
AbstractLet S be the orthogonal sum of infinitely many pairwise unitarily equivalent symmetric opera...
AbstractLet A and C be compact symmetric operators on a Hilbert space H, and let B = I + C be 1 − 1....
AbstractIf A and B are bounded selfadjoint operators and AB is trace class, then the absolutely cont...
AbstractPearson's trace theorem is carried over to the case of unbounded identification operator and...
The classical Weyl-von~Neumann theorem states that for any self-adjoint operator $A$ in a separable ...
AbstractThe classical Weyl–von Neumann theorem states that for any self-adjoint operator A0 in a sep...
The classical Weyl-von Neumann theorem states that for any self-adjoint operator $A$ in a separable ...
AbstractBy the method of direction wave operators, we prove that absolutely continuous parts of comm...
Consider the minimal Sturm-Liouville operator A = A_rm min generated by the differential expression ...
AbstractGeneralizing the Weyl-von Neumann theorem for normal operators, we show that a commutative m...
AbstractLet S be a locally compact abelian semigroup and T a bounded representation of S by linear b...
AbstractWe identify the linear span of commutators AB − BA, where A is a trace-class operator and B ...
AbstractWe describe the convex set of the eigenvalues of Hermitian matrices which are majorized by a...
Since the late 1960's mathematicians working mainly in the area of quantum field theory have used c...
AbstractWe prove that there exist some Sturm–Liouville operators with square summable potentials suc...
AbstractLet S be the orthogonal sum of infinitely many pairwise unitarily equivalent symmetric opera...
AbstractLet A and C be compact symmetric operators on a Hilbert space H, and let B = I + C be 1 − 1....
AbstractIf A and B are bounded selfadjoint operators and AB is trace class, then the absolutely cont...
AbstractPearson's trace theorem is carried over to the case of unbounded identification operator and...
The classical Weyl-von~Neumann theorem states that for any self-adjoint operator $A$ in a separable ...
AbstractThe classical Weyl–von Neumann theorem states that for any self-adjoint operator A0 in a sep...
The classical Weyl-von Neumann theorem states that for any self-adjoint operator $A$ in a separable ...
AbstractBy the method of direction wave operators, we prove that absolutely continuous parts of comm...
Consider the minimal Sturm-Liouville operator A = A_rm min generated by the differential expression ...
AbstractGeneralizing the Weyl-von Neumann theorem for normal operators, we show that a commutative m...
AbstractLet S be a locally compact abelian semigroup and T a bounded representation of S by linear b...
AbstractWe identify the linear span of commutators AB − BA, where A is a trace-class operator and B ...
AbstractWe describe the convex set of the eigenvalues of Hermitian matrices which are majorized by a...
Since the late 1960's mathematicians working mainly in the area of quantum field theory have used c...
AbstractWe prove that there exist some Sturm–Liouville operators with square summable potentials suc...
AbstractLet S be the orthogonal sum of infinitely many pairwise unitarily equivalent symmetric opera...
AbstractLet A and C be compact symmetric operators on a Hilbert space H, and let B = I + C be 1 − 1....
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