PLANAR GRAPHS AND RELATED TOPICS.
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Biomedical subjects
S Lefschetz
Publications and source records attributed to S Lefschetz.
Existence of Periodic Solutions for Certain Differential Equations.
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On the Mapping of Abstract Spaces on Polytopes.
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On Locally Connected Sets and Retracts.
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Application of Chain-Deformations to Critical Points and Extremals.
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A Theorem on Extremals: I.
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A Theorem of Extremals: II.
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On Certain Properties of Separable Spaces.
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ON THE DUALITY THEOREMS FOR THE BETTI NUMBERS OF TOPOLOGICAL MANIFOLDS.
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DUALITY RELATIONS IN TOPOLOGY.
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The Residual Set of a Complex on a Manifold and Related Questions (Second Note).
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The Residual Set of a Complex on a Manifold and Related Questions.
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On the Functional Independence of Ratios of Theta Functions.
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Transformations of Manifolds with a Boundary.
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Intersections of Complexes on Manifolds.
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Continuous Transformations of Manifolds.
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Continuous Transformations of Manifolds.
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On the Real Folds of Abelian Varieties.
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