المرجع الالكتروني للمعلوماتية
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Vladimir Ivanovich Smirnov  
  
246   02:32 مساءً   date: 16-6-2017
Author : E A Tropp
Book or Source : V Ya Frenkel and A D Chernin, Alexander A. Friedmann : the man who made the universe expand
Page and Part : ...


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Date: 6-6-2017 65
Date: 16-6-2017 178
Date: 7-6-2017 166

Born: 10 June 1887 in St Petersburg, Russia

Died: 11 February 1974 in Leningrad, USSR


Vladimir Smirnov attended the Second Gymnasium, the oldest secondary school in St Petersburg, and there he won the gold medal for mathematics. From school he entered the Physics and Mathematics Faculty of St Petersburg University.

Smirnov had become friends with a number of outstanding mathematicians while at the Second Gymnasium. He was particularly friendly with Friedmann and Tamarkin, who were in the class below him at school. Valentina Doinikova, who was a friend of Friedmann, describes how the three went around together while undergraduates at St Petersburg University:-

Friedmann, Tamarkin and Smirnov often came together, and they were called 'the boys from the second Gymnasium'. They were always smart and neatly dressed, and always called each other - in public - by their first name and patronymic.

In 1910 Smirnov graduated from St Petersburg and remained at the University to study for the higher degrees which would allow him to become a university teacher. At the University a circle was formed in 1911 to study mathematical analysis and mechanics. Smirnov was a very active member of this circle, for example lecturing on the theory of algebraic equations, particularly the work of Goursat and Appell. In session 1911-12 he gave nine lectures on Goursat's books.

Smirnov worked jointly with his friends from the Second Gymnasium. He published a joint paper with Friedmann in 1913 which was published in the Journal of the Russian Physico-Chemical Society (Physics Section). He wrote the first volume of his major five volume work A Course in Higher Mathematics jointly with Tamarkin.

From 1912 Smirnov taught at the St Petersburg Institute of Railway Engineering. He taught at Simferopol University in the southern Ukraine from 1919 to 1922, then he returned to St Petersburg (by now Leningrad). Smirnov was awarded his doctorate in 1936 and he became head of the Institute of Mathematics and Mechanics. He became the head of the Mathematics School at the University of Leningrad and was elected to the USSR Academy of Sciences.

In 1953 Smirnov organised the Leningrad Mathematical Seminar. To some extent this Seminar also filled the gap left when the Leningrad Mathematical Society disbanded due to political pressure in the late 1920s. Smirnov had been an active member of the Leningrad Mathematical Society through the 1920s and he was a strong believer in relaunching the Society. In 1959, mainly due to the efforts of Smirnov, it became possible to restart the Leningrad Mathematical Society and Smirnov was elected the honorary president of the Society. (In 1990 the name of the Society was changed from the Leningrad Mathematical Society back to the St Petersburg Mathematical Society. )

Smirnov's mathematical activity was in both pure and applied mathematics. He wrote the five volume work A Course in Higher Mathematics referred to above, which was widely used in Russia. He worked on conjugate functions in multidimensional euclidean space and the theory of functions of a complex variable. With Sobolev he devised a method for obtaining solutions on the propagation of waves in elastic media with plane boundaries. Other applied mathematical work resulted in him developing methods for studying oscillations of elastic spheres.

In [1] the authors write:-

... V I Smirnov was not only an outstanding mathematician and a famous historian of science, but also a person of exceptional nobility, benevolence and culture. All these qualities left a lasting impression even on those who seldom had occasion to meet this remarkable man in person, still more on his pupils and associates. Their love and respect for their teacher's memory were reflected in a three-day scientific conference which was held in Leningrad in June 1987 and was dedicated to the centenary of the scientist's birth.

 

Books:

1.     E A Tropp, V Ya Frenkel and A D Chernin, Alexander A. Friedmann : the man who made the universe expand (Cambridge, 1993).

Articles:

2.     P S Aleksandrov, I N Vekua, M V Keldys and M A Lavrent'ev, Vladimir Ivanovich Smirnov (on the seventieth anniversary of his birth) (Russian), Uspekhi Mat. Nauk (N.S.) 12 6(78) (1957), 197-205.

3.     V M Babich, S G Mikhlin, and N N Ural'tseva, Vladimir Ivanovich Smirnov (on the 100th anniversary of his birth) (Russian), Vestnik Leningrad. Univ. Mat. Mekh. Astronom. 3 (1987), 3-12.

4.     V S Buslaev O A Ladyzhenskaya S P Merkur'ev and L D Faddeev, Vladimir Ivanovich Smirnov (Russian), Vestnik Leningrad. Univ. Fiz. Khim. 2 (1987), 3-8.

5.     Collection of articles dedicated to the memory of Academician V I Smirnov, Vestnik. Leningrad. Univ. No. 1 Mat. Meh. Astronom. Vyp. 1 (1975), 1-192.

6.     L V Koval'chuk, Vladimir Ivanovich Smirnov (on the 100th anniversary of his birth) (Russian), Ocherki Istor. Estestvoznan. Tekhn. No. 33 (1987), 96-100, 113.

7.     O A Ladyjzenskaya and G M Fihtengolz, Vladimir Ivanovich Smirnov (on the 70th anniversary of his birth) (Russian), Vestnik Leningrad. Univ. Ser. Mat. Meh. Astr. 12 (7) (1957), 5-14.

8.     O A Ladyzenskaja, Vladimir Ivanovich Smirnov (Russian), Collection of articles dedicated to the memory of Academician V I Smirnov, Vestnik Leningrad. Univ. 1975 no. 1 Mat. Meh. Astronom. vyp. 1 (1975), 5-15.

9.     O A Ladyzenskaja, S M Lozinskii, and S G Mihlin, Vladimir Ivanovich Smirnov : On the eightieth anniversary of his birth (Russian), Uspekhi Mat. Nauk 23 (4) (142) (1968), 255-267.

10.                        O A Ladyzhenskaya, The life and scientific work of Vladimir Ivanovich Smirnov (Russian), Uspekhi Mat. Nauk 42 6(258) (1987), 3-23.

11.                        N A Lebedev and S M Lozinskii, Vladimir Ivanovich Smirnov and mathematics in Leningrad University during 1917-1967 (Russian), Vestnik Leningrad. Univ. 22 (7) (1967), 7-18.

12.                        I I Markus, V A Steklov and N M Günther on the master's dissertation of V I Smirnov (Russian), Voprosy Istor. Estestvoznan. i Tehn. 1(50) (1975), 41-45, 103.

13.                        S G Mikhlin, Development of dynamic elasticity theory in the works of V I Smirnov (Russian), Vestnik Leningrad. Univ. Mat. Mekh. Astronom. 3 (1987), 62-67, 128.

14.                        E Ozhigova, Vladimir Ivanovich Smirnov (1887-1974) (Bulgarian), Fiz.-Mat. Spis. Bulgar. Akad. Nauk. 17(50) (1974), 236-238.

15.                        G I Petrasen', V I Smirnov - founder of the Leningrad school of wave propagation and diffraction (Russian), Collection of articles dedicated to the memory of Academician V I Smirnov, Vestnik Leningrad. Univ. No. 1 Mat. Meh. Astronom. Vyp. 1 (1975), 16-21.

16.                        S L Sobolev, On the 70th anniversary of Vladimir Ivanovich Smirnov (Russian), Izv. Akad. Nauk SSSR. Ser. Mat. 21 (1957), 449-456.

17.                        Vladimir Ivanovich Smirnov (1887-1974) (Russian), Vestnik Leningrad. Univ. No. 13 Mat. Meh. Astronom. Vyp. 3 (1974), 152-153.

18.                        A P Yushkevich, Academician V I Smirnov (Russian), Voprosy Istor. Estestvoznan. i Tehn. 1(50) (1975), 98-100.

 




الجبر أحد الفروع الرئيسية في الرياضيات، حيث إن التمكن من الرياضيات يعتمد على الفهم السليم للجبر. ويستخدم المهندسون والعلماء الجبر يومياً، وتعول المشاريع التجارية والصناعية على الجبر لحل الكثير من المعضلات التي تتعرض لها. ونظراً لأهمية الجبر في الحياة العصرية فإنه يدرّس في المدارس والجامعات في جميع أنحاء العالم. ويُعجب الكثير من الدارسين للجبر بقدرته وفائدته الكبيرتين، إذ باستخدام الجبر يمكن للمرء أن يحل كثيرًا من المسائل التي يتعذر حلها باستخدام الحساب فقط.وجاء اسمه من كتاب عالم الرياضيات والفلك والرحالة محمد بن موسى الخورازمي.


يعتبر علم المثلثات Trigonometry علماً عربياً ، فرياضيو العرب فضلوا علم المثلثات عن علم الفلك كأنهما علمين متداخلين ، ونظموه تنظيماً فيه لكثير من الدقة ، وقد كان اليونان يستعملون وتر CORDE ضعف القوسي قياس الزوايا ، فاستعاض رياضيو العرب عن الوتر بالجيب SINUS فأنت هذه الاستعاضة إلى تسهيل كثير من الاعمال الرياضية.

تعتبر المعادلات التفاضلية خير وسيلة لوصف معظم المـسائل الهندسـية والرياضـية والعلمية على حد سواء، إذ يتضح ذلك جليا في وصف عمليات انتقال الحرارة، جريان الموائـع، الحركة الموجية، الدوائر الإلكترونية فضلاً عن استخدامها في مسائل الهياكل الإنشائية والوصف الرياضي للتفاعلات الكيميائية.
ففي في الرياضيات, يطلق اسم المعادلات التفاضلية على المعادلات التي تحوي مشتقات و تفاضلات لبعض الدوال الرياضية و تظهر فيها بشكل متغيرات المعادلة . و يكون الهدف من حل هذه المعادلات هو إيجاد هذه الدوال الرياضية التي تحقق مشتقات هذه المعادلات.