تأثير المركبة المحدودة لمتممة المضلع المتعامد النجمي درجياً على نواته
Abstract
اهتم الكثير من الباحثين بتعيين نواة المجموعة النجمية، ففي حالة الرؤية الدرجية برهن الباحث راجيف موتواني أن نقاط المناطق المفصولة عن بعضها بالأغوار لا ترى بعضها بعضاً، ثم برهن أن هذه النقاط مرئية من نقاط أخرى من المضلع المتعامد. وبعد ذلك تمكنت الباحثة مارلين برين من إيجاد طريقة لتعيين نواة المضلع المتعامد النجمي درجياً عندما يكون المضلع المتعامد بسيط الترابط.
يهدف البحث إلى تعميم الطريقة السابقة عندما يكون المضلع المتعامد المغلق ثنائي الترابط وجبهة المركبة المحدودة للمتممة تحوي ممراً درجياً أو ممرين درجيين كل منهما مؤلف من أكثر من ضلعين، حيث سنثبت أن النواة تتألف من مركبة أو مركبتين أو ثلاث مركبات.
Many mathematicians were interested in specifying the kernel of the starshaped set. In staircase visibility the researcher Rajeev Motwani proved that the points of separating regions with dents cannot see each other, and then he proved that these points are seen from other points of an orthogonal polygon. After that Breen could find a way for specifying the kernel of starshaped orthogonal polygon when this orthogonal polygon is simply connected.
The aim of this paper is to generalize the previous way when the closed orthogonal polygon is secondly connected and the bounded component for the complement contains one staircase path or two staircase paths, every path consists of more than two edges. We will prove that the kernel is either one component or two or three ones.
Downloads
Published
How to Cite
Issue
Section
License
This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.
The authors retain the copyright and grant the right to publish in the magazine for the first time with the transfer of the commercial right to the Tishreen University Journal -Basic Sciences Series
Under a CC BY- NC-SA 04 license that allows others to share the work with of the work's authorship and initial publication in this journal. Authors can use a copy of their articles in their scientific activity, and on their scientific websites, provided that the place of publication is indicted in Tishreen University Journal -Basic Sciences Series . The Readers have the right to send, print and subscribe to the initial version of the article, and the title of Tishreen University Journal -Basic Sciences Series Publisher
journal uses a CC BY-NC-SA license which mean
You are free to:
- Share — copy and redistribute the material in any medium or format
- Adapt — remix, transform, and build upon the material
- The licensor cannot revoke these freedoms as long as you follow the license terms.
- Attribution — You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
- NonCommercial — You may not use the material for commercial purposes.
- ShareAlike — If you remix, transform, or build upon the material, you must distribute your contributions under the same license as the original.
- No additional restrictions — You may not apply legal terms or technological measures that legally restrict others from doing anything the license permits.