This autobiography presents the scientific living of Abraham Ungar and his role in Gyrogroups and Gyrovector spaces.‎

abraham ungar is professor in the department of mathematicsat north dakota state university.after gaining his b.sc. (1965) and m.sc. (1967) from the hebrew university inpure mathematics and ph.d. (1973) from tel-aviv universityin applied mathematics, he held apostdoctoral position at the university of toronto (1974).ungar moved from toronto to pretoria where he held the position of asenior rese...

abraham ungar is professor in the department of mathematics at north dakota state university. after gaining his b.sc. (1965) and m.sc. (1967) from the hebrew university in pure mathematics and ph.d. (1973) from tel-aviv university in applied mathematics, he held a postdoctoral position at the university of toronto (1974). ungar moved from toronto to pretoria where he held the position of a seni...

Communicated by Abraham A. Ungar Abstract. In this paper, we investigate the reflections in Minkowski three-space by three different approaches. Firstly, we define Lorentzian reflections with Lorentzian inner product. Then, we examine Lorentzian reflections in view of Lorentzian Householder matrices. Finally, we use pure split quaternions to derive Lorentzian reflections. For each case, we find...

Jeju, Republic of Korea, 8-14 July 2012. c ©2012 Association for Computational Linguistics Spectral Learning of Latent-Variable PCFGs Shay B. Cohen, Karl Stratos, Michael Collins, Dean P. Foster, and Lyle Ungar Dept. of Computer Science, Columbia University Dept. of Statistics/Dept. of Computer and Information Science, University of Pennsylvania {scohen,stratos,mcollins}@cs.columbia.edu, foster...

The Rohingya people have been victims of alleged severe human rights violations committed by the Myanmar government. In response to this situation, United Nations (UN) has adopted some measures, including a General Assembly Resolution (UNGAR) A/RES/74/246 2019 that, inter alia, determines Non-Governmental Organizations (NGOs) as one key players in implementing its mandate. practice, NGOs' lack ...

Following variables were selected Somatotype : Endomorph, Mesomorph and Ectomorph. Psychological Variables: Achievement motivation, Sports Competition anxiety and Sports Aggression. Fitness test: modified Canadian test Achievement Motivation was measured by Sports Achievement Motivation Test (SAMT). Sports Competition Anxiety was measured by Sports Competition Anxiety Test (SCAT). The aggressio...