Richardson varieties play an important role in intersection theory and in the geometric interpretation of the Littlewood-Richardson Rule for flag varieties. We discuss three natural generalizations of Richardson varieties which we call projection varieties, intersection varieties, and rank varieties. In many ways, these varieties are more fundamental than Richardson varieties and are more easil...

We study a family of subvarieties of the flag variety defined by certain linear conditions, called Hessenberg varieties. We compare them to Schubert varieties. We prove that some Schubert varieties can be realized as Hessenberg varieties and vice versa. Our proof explicitly identifies these Schubert varieties by their permutation and computes their dimension. We use this to answer an open quest...

Proposing the similarity measures formula between Vague sets E and G. Concluding Vague resistance analysis. The concrete application steps were:1Establishing comprehensive characters set; 2Screening excellent varieties set; 3Extracting theory optimal varieties set; 4The single-value date transformed into Vague date, obtaining different varieties Vague sets; 5Vague resistance analysis 1,the simi...

introduction: marginal adaptation of cast restorations is essential for their long-term success. as dentists usually assign ditching of dies to laboratory technicians, and ditching has a significant effect on marginal adaptation, the aim of this study was to compare ditching by laboratory technicians and standard approach on marginal adaptation of cast restoration. materials and methods: in thi...

most people have experienced anxiety in their lives. anxiety is necessary to continue the life but intense anxiety can be reduced person’s efficiency and avoided rational thinking and decision making. the goal of this study was to determine the relationship between levels of anxiety and social adaptation in female students of science and research branch, islamic azad university, tehran, iran. 1...

Introduction: In 1998, the Persian form of Language Assessment, Remediation, & Screening Procedure (P-LARSP) was introduced. However, this adapted version remained on library shelves and was not used by Iranian speech and language pathologists (SLPs). The present study aimed to explore the barriers to using P-LARSP, resolve the possible issues, and provide a preliminary grammatical sketch from ...

Crested wheatgrass being high drought-resistant, is a promising forage crop for the Republic of Bashkortostan. It relevant in developing varieties adapted to environmental stress factors that have productive longevity, increased seed and fodder productivity. The paper presents research results crested conducted nursery competitive variety testing productivity 2018-2020. High due well-developed ...