Results 31 to 40 of about 69 (69)
A separation theorem for nonsymmetric matrices
Journal of Mathematical Analysis and Applications, 1968 Hall, C.A, Porsching, T.A
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On separating sets and menger's theorem
Indagationes Mathematicae (Proceedings), 1973 openaire +2 more sources
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Minimum Separators and Menger’s Theorem
Graphs and Combinatorics, 2023zbMATH Open Web Interface contents unavailable due to conflicting licenses.
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Applications of a Planar Separator Theorem
SIAM Journal on Computing, 1977Any n-vertex planar graph has the property that it can be divided into components of roughly equal size by removing only $O(\sqrt n )$ vertices. This separator theorem, in combination with a divide-and-conquer strategy, leads to many new complexity results for planar graph problems. This paper describes some of these results.
Richard J. Lipton, Robert Endre Tarjan
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Canadian Mathematical Bulletin, 1972
The purpose of this note is to obtain an extension of the classical Sturm separation theorem for the second order, linear selfadjoint differential equation1to the case of a noncompact interval. The classical theorem (cf. [3, p. 209], [4, p. 224]) assumes that r and s are continuous with r positive on a compact interval I, and concludes that between ...
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The purpose of this note is to obtain an extension of the classical Sturm separation theorem for the second order, linear selfadjoint differential equation1to the case of a noncompact interval. The classical theorem (cf. [3, p. 209], [4, p. 224]) assumes that r and s are continuous with r positive on a compact interval I, and concludes that between ...
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Mathematics of the USSR-Izvestiya, 1978
Criteria are established for Hausdorff separation of the homology and cohomology spaces with compact support of coherent analytic sheaves on complex spaces.Bibliography: 11 titles.
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Criteria are established for Hausdorff separation of the homology and cohomology spaces with compact support of coherent analytic sheaves on complex spaces.Bibliography: 11 titles.
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An Extension of the Roots Separation Theorem
Annals of Operations Research, 2001The interlacing of the eigenvalues of a symmetric tridiagonal matrix and its submatrix obtained by deleting its first row and its first column (or its last row and its last column) is known. The paper extends this to deleting the \(k\)th row and the \(k\)th column.
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SHEAF RECURSION AND A SEPARATION THEOREM
The Journal of Symbolic Logic, 2014AbstractDefine a second order tree to be a map between trees (with fixed codomain). We show that many properties of ordinary trees have analogs for second order trees. In particular, we show that there is a notion of “definition by recursion on a well-founded second order tree” which generalizes “definition by transfinite recursion”.
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Separation of metric in Wick’s theorem
The Journal of Chemical Physics, 2023In quantum chemistry, Wick’s theorem is an important tool to reduce products of fermionic creation and annihilation operators. It is especially useful in computations employing reference states. The original theorem has been generalized to tackle multiconfigurational wave functions or nonorthogonal orbitals.
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A separate analyticity theorem and an “Edge of the Wedge” theorem
Journal of Mathematical Sciences, 1995See the review in Zbl 0804.32009.
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