We consider the problem of …nding the best analytic approximation in Smirnov and Bergman norm to general monomials of the type znzm. We show that in the case of approximation to z in the annulus (and the disk) the best approximation is the same for all values of p. Moreover, the best approximations to z in Smirnov and Bergman spaces characterize disks and annuli.

1.1 Graded associative algebras. A nite Z-grading of an algebra A is a decomposition A = L n i=?n A i such that A i A j A i+j , where A i = 0 for jij > n. From now on a grading means a nite Z-grading. I am interested in associative graded algebras because they arise naturally in study of Lie algebras, although the subject is certainly interesting in its own right. A classiication of gradings of...

The phenomenon of the Covid-19 pandemic has caused changes in life and economic activities. Based on Statistical Indicators Sub-Directorate Survey by Central Bureau Statistics (BPS) regarding impact business actors conducted July 2020, it was stated that majority companies affected were 82.85% experiencing decrease income, while 14.6% other still get same income from before covid-19. This resea...

The aims of this study were to determine the level feasibility modules developed and increase students' creative thinking skills in Organic Chemistry Natural Products subject. Module development was carried out with 4D model, namely Define, Design, Develop, Disseminate. module could be determined through validation test expert judgments. ability think creatively by students measured using descr...

Tremendous growth in technology, as part of the dynamics globalization, can lead to gaps student learning. Students tend seek information and instant gratification through technological tools that have a major impact on their learning approaches, making it more difficult for them be self-regulated learners. The aim this study is analyse effectiveness life skills counseling approach enhancing ab...

This study aims to find out whether there is an influence of transformational leadership principals on improving teacher performance. research motivated by the low performance teachers both in terms planning learning, implementing and evaluating learning. To determine or not between principal performance, this uses quantitative where data obtained from results questionnaire. took place at SMPN ...

Football extracurricular participants at SMA Negeri 4 Purworejo do not yet have good dribbling skills. This study aims to determine the effect of tactical approach training on skills football students Purworejo. research is an experimental with one group pretest-posttest design. The population this were all who took part in soccer extracurricular, totaling 16 children. instrument used using tes...

Introduction: Oral health is essential for people's well-being and quality of life; therefore, the present study performs an analysis on knowledge oral hygiene habits, making reference to indicators WHO. Objective: To analyze habits in students Universidad Nacional Hermilio Valdizán, Peru, during second semester 2019 academic year Material Methods: Research type descriptive correlational design...

The purpose of this article is to identify the differences in various aspects perception artificial intelligence by students economics and business studies at different levels study and, on basis, formulate recommendations both higher education institutions themselves, which educate field economic sciences, as well curriculum designers. First, we utilized descriptive statistics analyze response...