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RightAngled Artin Groups . . .
, 2012
"... Consider the mapping class group Modg,p of a surface Σg,p of genus g with p punctures, and a finite collection {f1,..., fk} of mapping classes, each of which is either a Dehn twist about a simple closed curve or a pseudoAnosov homeomorphism supported on a connected subsurface. In this paper we prov ..."
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prove that for all sufficiently large N, the mapping classes {f N 1,..., f N k} generate a rightangled Artin group. The rightangled Artin group which they generate can be determined from the combinatorial topology of the mapping classes themselves. When {f1,..., fk} are arbitrary mapping classes, we
Billiards on RationalAngled Triangles
 Comment. Math. Helv
, 1998
"... this paper. The lattice polygons are those polygons for which the surface M ` has a large affine automorphism group (see section 3). In this paper we introduce techniques to analyze affine automorphism groups and apply these techniques to the surfaces, M ` , associated to acute and right rational tr ..."
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Cited by 57 (1 self)
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this paper. The lattice polygons are those polygons for which the surface M ` has a large affine automorphism group (see section 3). In this paper we introduce techniques to analyze affine automorphism groups and apply these techniques to the surfaces, M ` , associated to acute and right rational
1.4.2. Tangential Relations between Distorted Acute Angles vs. Original Acute Angles of a Right
"... 1 L'auteur autorise la reproduction de ces idées à la seule condition de citer son nom et les references du présent ouvrage. (c) Imprimerie SOMIPRESS, 1983, Edition Anglaise, FES. Tous droits de traduction, de reproduction et d'adaptation réservés pour tous pays. ..."
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1 L'auteur autorise la reproduction de ces idées à la seule condition de citer son nom et les references du présent ouvrage. (c) Imprimerie SOMIPRESS, 1983, Edition Anglaise, FES. Tous droits de traduction, de reproduction et d'adaptation réservés pour tous pays.
On the perspectives opened by right angle crossing drawings
 In Proc. 17th Int. Symp. Graph Drawing (GD 2009), volume 5849 of LNCS
, 2010
"... Abstract. Right Angle Crossing (RAC) drawings are polyline drawings where each crossing forms four right angles. RAC drawings have been introduced because cognitive experiments provided evidence that increasing the number of crossings does not decrease the readability of the drawing if the edges cr ..."
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Cited by 9 (4 self)
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Abstract. Right Angle Crossing (RAC) drawings are polyline drawings where each crossing forms four right angles. RAC drawings have been introduced because cognitive experiments provided evidence that increasing the number of crossings does not decrease the readability of the drawing if the edges
Ocular Biometry in Angle Closure
"... Purpose: To compare ocular biometric parameters in primary angle closure suspects (PACS), primary angle closure glaucoma (PACG) and acute primary angle closure (APAC). Methods: This crosssectional study was performed on 113 patients including 33 cases of PACS, 45 patients with PACG and 35 subjects ..."
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Purpose: To compare ocular biometric parameters in primary angle closure suspects (PACS), primary angle closure glaucoma (PACG) and acute primary angle closure (APAC). Methods: This crosssectional study was performed on 113 patients including 33 cases of PACS, 45 patients with PACG and 35 subjects
Acute AngleClosure Glaucoma from Spontaneous Massive Hemorrhagic Retinal Detachment
"... Purpose: To report a case of acute angleclosure glaucoma resulting from spontaneous hemorrhagic retinal detachment. Methods: An 81yearold woman visited our emergency room for severe ocular pain and vision loss in her left eye. Her intraocular pressures (IOPs) were 14 mmHg in the right eye and 58 ..."
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Purpose: To report a case of acute angleclosure glaucoma resulting from spontaneous hemorrhagic retinal detachment. Methods: An 81yearold woman visited our emergency room for severe ocular pain and vision loss in her left eye. Her intraocular pressures (IOPs) were 14 mmHg in the right eye and 58
Provocative tests in closedangle glaucoma
 British Journal of Ophthalmology
, 1976
"... The absence of a provocative test with proved predictive value, in eyes at risk of developing closedangle glaucoma, creates many problemsfor example, a patient presents with a family history of acute closedangle glaucoma and has narrow angles. What is the probability of his developing an acute at ..."
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Cited by 2 (1 self)
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The absence of a provocative test with proved predictive value, in eyes at risk of developing closedangle glaucoma, creates many problemsfor example, a patient presents with a family history of acute closedangle glaucoma and has narrow angles. What is the probability of his developing an acute
Small Angle Scattering of Polarized Protons
, 2002
"... Experiment E950 at AGS, BNL has provided data with high statistics for the leftright asymmetry of protoncarbon elastic scattering in the Coulombnuclear interference region of momentum transfer. It allows to access information about spin properties of the Pomeron and has practical implications for ..."
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), there might be a problem for Rer 5. The πN data indicate at a rather small contribution of the fReggeon to the spinflip part of the isoscalar amplitude which is dominated by the Pomeron. This conclusion is supported by direct analysis of data for elastic and charge exchange pp and pn scattering which also
W.: Behavioral dynamics of steering, obstacle avoidance, and route selection
 Journal of Experimental Psycholology: Human Perception Performance
, 2003
"... The authors investigated the dynamics of steering and obstacle avoidance, with the aim of predicting routes through complex scenes. Participants walked in a virtual environment toward a goal (Experiment 1) and around an obstacle (Experiment 2) whose initial angle and distance varied. Goals and obsta ..."
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Cited by 83 (5 self)
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could predict whether participants adopt a route to the left or right of an obstacle to reach a goal (Experiment 3). Route selection may emerge from online steering dynamics, making explicit path planning unnecessary. How do humans and other animals locomote effortlessly through a complex environment
Right Type Departmental Bulletin Paper
"... Let us write by $E $ the extraspecialgroup $p_{+}^{1+2} $ of order $p $ and exponent $p $ for an odd prime $p $. Let $G $ be a finite group having $E $ as a Sylow $p$group, and let $BG(=BP_{p}^{\mathrm{A}}) $ the $p$completed classifying space of $G $. In papers [TY],[Y1,2], the cohomology and s ..."
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Let us write by $E $ the extraspecialgroup $p_{+}^{1+2} $ of order $p $ and exponent $p $ for an odd prime $p $. Let $G $ be a finite group having $E $ as a Sylow $p$group, and let $BG(=BP_{p}^{\mathrm{A}}) $ the $p$completed classifying space of $G $. In papers [TY],[Y1,2], the cohomology and stable splitting for such groups are studied. Results show that
Results 1  10
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