Some projective geometry associated with unramified double covers of curves of genus 4

Andrea Del Centina; Sevin Recillas

doi:10.1007/bf01766014

Some projective geometry associated with unramified double covers of curves of genus 4

Annali di Matematica Pura ed Applicata (1923 -) ◽

10.1007/bf01766014 ◽

1983 ◽

Vol 133 (1) ◽

pp. 125-140 ◽

Cited By ~ 1

Author(s):

Andrea Del Centina ◽

Sevin Recillas

Keyword(s):

Projective Geometry ◽

Double Covers

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More projective geometry associated with unramified double covers of curves of genus four

Annali di Matematica Pura ed Applicata (1923 -) ◽

10.1007/bf01766586 ◽

1985 ◽

Vol 142 (1) ◽

pp. 49-55

Author(s):

Andrea Del Centina

Keyword(s):

Projective Geometry ◽

Double Covers

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Generalization of the Symmetric Starter of the Orthogonal Double Covers of the Complete Bipartite Graph

Menoufia Journal of Electronic Engineering Research ◽

10.21608/mjeer.2006.64856 ◽

2006 ◽

Vol 16 (2) ◽

pp. 171-177

Author(s):

S. A. El-Serafi ◽

R. A. El-Shanawany ◽

M. Sh. Higazy

Keyword(s):

Bipartite Graph ◽

Complete Bipartite Graph ◽

Double Covers

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Projective Geometry

10.1007/978-1-4612-3896-6 ◽

1988 ◽

Cited By ~ 29

Author(s):

Pierre Samuel

Keyword(s):

Projective Geometry

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Double cover K3 surfaces of Hirzebruch surfaces

Advances in Geometry ◽

10.1515/advgeom-2020-0034 ◽

2021 ◽

Vol 21 (2) ◽

pp. 221-225

Author(s):

Taro Hayashi

Keyword(s):

Rational Surface ◽

K3 Surfaces ◽

Double Cover ◽

Double Covering ◽

Smooth Surfaces ◽

Branch Locus ◽

Hirzebruch Surfaces ◽

Double Covers

Abstract General K3 surfaces obtained as double covers of the n-th Hirzebruch surfaces with n = 0, 1, 4 are not double covers of other smooth surfaces. We give a criterion for such a K3 surface to be a double covering of another smooth rational surface based on the branch locus of double covers and fibre spaces of Hirzebruch surfaces.

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Fuzzy plane projective geometry

Fuzzy Sets and Systems ◽

10.1016/0165-0114(93)90276-n ◽

1993 ◽

Vol 54 (2) ◽

pp. 191-206 ◽

Cited By ~ 13

Author(s):

K.C. Gupta ◽

Suryansu Ray

Keyword(s):

Projective Geometry

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Einstein on involutions in projective geometry

Archive for History of Exact Sciences ◽

10.1007/s00407-020-00270-z ◽

2021 ◽

Author(s):

Tilman Sauer ◽

Tobias Schütz

Keyword(s):

Projective Geometry ◽

Common Theme ◽

Infinite Point

AbstractWe discuss Einstein’s knowledge of projective geometry. We show that two pages of Einstein’s Scratch Notebook from around 1912 with geometrical sketches can directly be associated with similar sketches in manuscript pages dating from his Princeton years. By this correspondence, we show that the sketches are all related to a common theme, the discussion of involution in a projective geometry setting with particular emphasis on the infinite point. We offer a conjecture as to the probable purpose of these geometric considerations.

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