نتایج جستجو برای: nil

تعداد نتایج: 4574  

2007
Jenő Szirmai

W. Heisenberg’s famous real matrix group provides a noncommutative translation group of an affine 3-space. The Nil geometry which is one of the eight homogeneous Thurston 3-geometries, can be derived from this matrix group. E. Molnár proved in [2], that the homogeneous 3-spaces have a unified interpretation in the projective 3-sphere PS(V4,V 4,R). In our work we will use this projective model o...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس - دانشکده علوم ریاضی 1393

فرض کنید‎ ‎r ‎یک حلقه باشد و‎ ‎r[x] ‎حلقه ی چندجمله ای های روی‎ ‎r ‎باشد ارتباط بین پوچ سازهای ‏حلقه ی‎ ‎ ‎r‎و مجموع پوچ سازهای حلقه ی‎ ‎r[x] ‎ ‎را بررسی می کنیم. برای حلقه ی‎‎r ‎، همریختی‎ α‎ ‎و‎ -α ‎مشتق‎ ‎ δ ‎‎‏، مفهوم حلقه ی(‎ -(α, δسازگار ضعیف را معرفی می کنیم که تعمیم حلقه ی ‎-α صلب و (‎ -(α, δسازگار است. ابتدا خواص حلقه های (‎-(α, δ سازگار ضعیف را مشاهده می کنیم و سپس ارتباط میان ‏خواص ا...

Journal: :Journal of Algebra 1986

Journal: :Modeling and Analysis of Information Systems 2015

Journal: :World Development 2022

Nil-filing refers to taxpayers reporting zero in all fields of their tax declaration. It is a largely ignored phenomenon the public finance literature, despite being well known administrators and widespread: half registered corporations Rwanda file nil. This paper sheds light on this issue, using descriptive analysis administrative data, randomised controlled trial (RCT), qualitative interviews...

Journal: :Symmetry 2022

The nature of universe problems is ambiguous due to the presence asymmetric data in almost all disciplines, including engineering, mathematics, medical sciences, physics, computer science, operations research, artificial intelligence, and management they involve various types uncertainties when dealing with them on occasions. To deal challenges uncertainty information, different theories have b...

1998
John W. Buchanan

The display of volumetric data is a problem of increasing importance. The display of this data is being studied in texture mapping and volume rendering applications. The goal of texture mapping is to add variation to the surfaces that is not caused by the geometric models of the objects. The goal of volume rendering is to display the data so that the study of this data is made easier. Three-dim...

Journal: :Journal of the Australian Mathematical Society. Series A. Pure Mathematics and Statistics 1983

Journal: :Israel Journal of Mathematics 2017

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