A Comment on Ryser's "Normal and Integral Implies Incidence" Theorem

1961 ◽  
Vol 68 (8) ◽  
pp. 770
Author(s):  
K. Goldberg
Keyword(s):  
Incidence Theorem

Application of an incidence theorem for conics: Cauchy problem and integrability of the dCKP equation

2006 ◽  
Vol 39 (8) ◽  
pp. 1899-1913 ◽  
Author(s):  
A D King ◽  
W K Schief
Keyword(s):  
Cauchy Problem ◽  
Incidence Theorem

A 5-Circle Incidence Theorem

2014 ◽  
Vol 87 (1) ◽  
pp. 44-49 ◽  
Author(s):  
J. Chris Fisher ◽  
Larry Hoehn ◽  
Eberhard M. Schröder
Keyword(s):  
Incidence Theorem

scholarly journals Causality in Schwinger’s Picture of Quantum Mechanics

Entropy ◽  
2022 ◽  
Vol 24 (1) ◽  
pp. 75
Author(s):  
Florio M. Ciaglia ◽  
Fabio Di Di Cosmo ◽  
Alberto Ibort ◽  
Giuseppe Marmo ◽  
Luca Schiavone ◽  
...  
Keyword(s):  
Quantum Mechanics ◽  
Quantum System ◽  
Von Neumann Algebra ◽  
Operator Algebras ◽  
Quantum Mechanical ◽  
Von Neumann ◽  
Triangular Operator ◽  
Quantum Mechanical Systems ◽  
Causal Structures ◽  
Incidence Theorem

This paper begins the study of the relation between causality and quantum mechanics, taking advantage of the groupoidal description of quantum mechanical systems inspired by Schwinger’s picture of quantum mechanics. After identifying causal structures on groupoids with a particular class of subcategories, called causal categories accordingly, it will be shown that causal structures can be recovered from a particular class of non-selfadjoint class of algebras, known as triangular operator algebras, contained in the von Neumann algebra of the groupoid of the quantum system. As a consequence of this, Sorkin’s incidence theorem will be proved and some illustrative examples will be discussed.

scholarly journals An incidence theorem for a class of continuous real functions

1977 ◽  
Vol 64 (2) ◽  
pp. 295-295
Author(s):  
V. J. Baston ◽  
F. A. Bostock
Keyword(s):  
Real Functions ◽  
Incidence Theorem

Additional note on plane congruences and fifth incidence theorems

1932 ◽  
Vol 28 (4) ◽  
pp. 416-420 ◽  
Author(s):  
W. G. Welchman
Keyword(s):  
Arbitrary Point ◽  
Second Order ◽  
Singular Points ◽  
Additional Note ◽  
Pass Through ◽  
Incidence Theorems ◽  
Incidence Theorem

In a recent paper I discussed plane congruences of order two in [4] and obtained congruences of types (2, 6)1, (2, 6)2, (2, 5), (2, 4) and (2, 3). The method employed was due to Segre, who showed that a plane congruence of order two in [4] has in general a curve locus of singular points which is met by each plane in five points. Then, if we can find a curve in [4], composite or not, with an ∞2 system of quadrisecant planes of which two pass through an arbitrary point, the planes must all meet a residual curve, and we shall have obtained a congruence of the second order and a fifth incidence theorem.

scholarly journals AN EXPLICIT INCIDENCE THEOREM IN

Mathematika ◽  
2010 ◽  
Vol 57 (1) ◽  
pp. 135-145 ◽  
Author(s):  
Harald Andrés Helfgott ◽  
Misha Rudnev
Keyword(s):  
Incidence Theorem

scholarly journals An Incidence Theorem in Higher Dimensions

2012 ◽  
Vol 48 (2) ◽  
pp. 255-280 ◽  
Author(s):  
József Solymosi ◽  
Terence Tao
Keyword(s):  
Higher Dimensions ◽  
Incidence Theorem
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