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Regular cross sections of Borel flows [article]

Konstantin Slutsky
2015 arXiv   pre-print
Any free Borel flow is shown to admit a cross section with only two possible distances between adjacent points.  ...  Regular cross sections. Let C be a cross section. For a subset S ⊆ R >0 we say that C is S-regular if ga p C (x) ∈ S for all x ∈ C. For r ∈ R we may say that x ∈ C is an r-point if ga p C (x) = r.  ...  regular blocks within each orbit.  ... 
arXiv:1507.02252v2 fatcat:ngwrrst42vbfxpqxg6icrsdmsq

Regular Health Checks: Cross-Sectional Survey

Christian Grønhøj Larsen, Karsten Juhl Jørgensen, Peter C. Gøtzsche, Carlo A. Perucci
2012 PLoS ONE  
Methods and Design: Cross-sectional study.  ...  Introduction Regular health checks of healthy individuals are intended to identify risk factors and early signs of disease, preventing future illness through early intervention.  ... 
doi:10.1371/journal.pone.0033694 pmid:22479429 pmcid:PMC3316492 fatcat:etue5nbq3bhhblveygudb2go4i

On surfaces of maximal sectional regularity [article]

Markus Brodmann, Wanseok Lee, Euisung Park, Peter Schenzel
2015 arXiv   pre-print
We study projective surfaces X ⊂P^r (with r ≥ 5) of maximal sectional regularity and degree d > r, hence surfaces for which the Castelnuovo-Mumford regularity (C) of a general hyperplane section curve  ...  We use the classification of varieties of maximal sectional regularity of BLPS1 to see that these surfaces are either particular divisors on a smooth rational 3-fold scroll S(1,1,1)⊂P^5, or else admit  ...  Surfaces of maximal sectional regularity.  ... 
arXiv:1502.01770v1 fatcat:vjy5jwgxjnfrrgzkj2qcjjofim

Projective surfaces of maximal sectional regularity [article]

Markus Brodmann, Wanseok Lee, Euisung Park, Peter Schenzel
2013 arXiv   pre-print
We study projective surfaces X ⊂P^r (with r ≥ 5) of maximal sectional regularity and degree d > r, hence surfaces for which the Castelnuovo-Mumford regularity (C) of a general hyperplane section curve  ...  We study the the extremal variety F(X) of these surfaces X, that is the closed union of the extremal secant lines of all smooth hyperplane section curves of X.  ...  Surfaces of Maximal Sectional Regularity In section 2 we already have introduced varieties of maximal sectional regularity.  ... 
arXiv:1305.2355v1 fatcat:mjidcaehhrhcfjyc2ocqbwohbq

Projective varieties of maximal sectional regularity [article]

Markus Brodmann, Wanseok Lee, Euisung Park, Peter Schenzel
2015 arXiv   pre-print
As one of the main results we classify all varieties of maximal sectional regularity.  ...  We study projective varieties X ⊂P^r of dimension n ≥ 2, of codimension c ≥ 3 and of degree d ≥ c + 3 that are of maximal sectional regularity, i.e. varieties for which the Castelnuovo-Mumford regularity  ...  Surfaces of Maximal Sectional Regularity This section is aimed to classify projective surfaces of maximal sectional regularity.  ... 
arXiv:1502.01769v1 fatcat:sycflbfvpvbzbpeo6p3vnplyoy

Ninth Regular Meeting of the Kansas Section

U. G. Mitchell
1923 The American mathematical monthly  
1923. ] THE KANSAS SECTION. 105 NINTH REGULAR MEETING OF THE KANSAS SECTION.  ...  The ninth regular meeting of the Kansas Section was held at the Central High School, Topeka, Kansas, January 20, 1923, in connection with a meeting of the Kansas Association of Mathematics Teachers.  ... 
doi:10.2307/2298553 fatcat:5yijwtvwhfc7vawej2uqd4jvny

First Regular Meeting of the Missouri Section

Albert H. Huntington
1917 The American mathematical monthly  
24 MEETING OF THE MISSOURI SECTION. FIRST REGULAR MEETING OF THE MISSOURI SECTION. Pursuant to the call from the committee appointed some time ago by Pro- fessor E. R.  ...  Louis at the Central High School on Saturday morning, Nov. 18, for the first regular meeting of The Missouri Section of The Mathematical Association of America. Professor C. A.  ... 
doi:10.1080/00029890.1917.11998266 fatcat:sr452xxngjeohbfghlhhuejb3y

Ninth Regular Meeting of the Kansas Section

U. G. Mitchell
1923 The American mathematical monthly  
1923. ] THE KANSAS SECTION. 105 NINTH REGULAR MEETING OF THE KANSAS SECTION.  ...  The ninth regular meeting of the Kansas Section was held at the Central High School, Topeka, Kansas, January 20, 1923, in connection with a meeting of the Kansas Association of Mathematics Teachers.  ... 
doi:10.1080/00029890.1923.11986212 fatcat:2gkc7z6ayzemnlpndvoizjfkzi

DRAWING OF SOLID REGULAR POLYGONAL SECTION SHAPES

V. N. Trofimov, T. V. Kuznetsova, D. S. Anishchuk, A. V. Yeseneyev, M. G. Shtutsa
2015 Izvestiya Vuzov Tsvetnaya Metallurgiya (Proceedings of Higher Schools Nonferrous Metallurgy)  
In designing the regular polygonal section shape drawing process, it is convenient to use analytical expressions allowing us to estimate effectively the effect of different process factors.  ...  Key words: polygonal section shape, drawing stress, drawing tool, structural defects. состояния изделий при обработке давлением, в практических расчетах удобно использовать аналитические выражения, позволяющие  ... 
doi:10.17073/0021-3438-2013-5-49-53 fatcat:nku42d3hnnbx3ozqjjvyobldga

Eighth Regular Meeting of the Ohio Section

G. N. Armstrong
1923 The American mathematical monthly  
216 EIGHTH REGULAR MEETING OF THE OHIO SECTION. [July—August, (7) “Collegiate Euclidean geometry” by Professor M. O.  ...  MEETING OF THE OHIO SECTION.  ... 
doi:10.1080/00029890.1923.11986237 fatcat:zmivtifaobfn7cmdsvfzrxodfe

Tenth Regular Meeting of the Kansas Section

U. G. Mitchell
1925 The American mathematical monthly  
62 TENTH REGULAR MEETING OF THE KANSAS SECTION.  ...  TENTH REGULAR MEETING OF THE KANSAS SECTION. The tenth regular meeting of the Kansas Section was held at the Central High School, Topeka, Kansas, February 2, 1924.  ... 
doi:10.1080/00029890.1925.11986413 fatcat:frd2l575uneurhpn3emdemgjfu

First Regular Meeting of the Missouri Section [article]

1917 The American mathematical monthly  
This separation of good and poor students gives the better sections a chance to push forward much more rapidly, while the other sections move at a pace suited to the needs of the slower workers. 9.  ...  On a Method of Sectioning Freshman and Sophomore Classes in Mathematics. By Mr. ALAN CAMPBELL, Washington University.  ... 
fatcat:6t55ge3k2ngm3g2t6wjtkw36wu

First Regular Meeting of the Iowa Section

G. A. Chaney, I. F. Neff
1917 The American mathematical monthly  
FIRST REGULAR MEETING OF THE IOWA SECTION.  ...  The first regular meeting of the Iowa Section of The Mathematical Association of America was held at Grinnell College, Grinnell, Iowa, on April 28, 1917, and the following program given: (1) “A unified  ... 
doi:10.1080/00029890.1917.11998327 fatcat:rlsmdz5lqff4pe57xfgmzpbqte

First Regular Meeting of the Iowa Section [article]

G. A. Chaney, I. F. Neff
1917 The American mathematical monthly  
FIRST REGULAR MEETING OF THE IOWA SECTION.  ...  The first regular meeting of the Iowa Section of The Mathematical Association of America was held at Grinnell College, Grinnell, Iowa, on April 28, 1917, and the following program given: (1) "A unified  ... 
fatcat:tryavkyjxbawrmntwl4p32sryq

Regular polytopes, sphere packings and Apollonian sections [article]

Iván Rasskin
2021 arXiv   pre-print
integral orthoplicial Apollonian section.  ...  After introducing the notion of Apollonian section, we prove our main result, that every integral tetrahedral, octahedral or cubical Apollonian circle packing is contained as an Apollonian section of an  ...  In Section 2, after recalling the main tools introduced in [RR21a], we show the Centered Ball Packing projections of the regular 4-polytopes.  ... 
arXiv:2109.00655v1 fatcat:kuvv4ljlp5aotogoms273iv3wm
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