The God has created a man in order that he creates that the God fails to do



Tuesday, 24 December 2013

Dmitri Ivanenko. Scientific Biography


My article: G.Sardanashvily, Dmitri Ivanenko. Scientific Biography, In: The People of Physics Faculty. Selected Papers of the Journal "Soviet Physicist" (1998 - 2006) (#) (see also arXiv: 1607.03828).

"Dmitri Ivanenko (29.07.1904 - 30.12.1994), professor of Moscow State University (since 1943)was one of the great theoreticians of XX century. He made the fundamental contribution to many areas of nuclear physics, field theory and gravitation theory.

His outstanding achievements include:
·                The Fock - Ivanenko coefficients of parallel displacement of spinors in a curved space-time (1929). Nobel laureate Abdus Salam called it the first gauge theory.
·                The Ambartsumian - Ivanenko hypothesis of creation of massive particles which is a corner stone of contemporary quantum field theory (1930).
·                The proton-neutron model of atomic nuclei (1932).
·                The first shell model of nuclei (in collaboration with E. Gapon) (1932).
·                The first model of exchange nuclear forces by means of massive particles (in collaboration with I. Tamm) (1934). Based on this model, Nobel laureate H. Yukawa developed his meson theory.
·                The prediction of synchrotron radiation (in collaboration with I. Pomeranchuk) (1944) and its classical theory (in collaboration with A. Sokolov).
·                Theory of hypernucleus (1956).
·                The hypothesis of quark stars (in collaboration with D. Kurdgelaidze) (1965).

·                The gauge gravitation theory (in collaboration with G. Sardanashvily), where gravity is treated as a Higgs field responsible for spontaneous breaking of space-time symmetries (1983).

Professor D. D. Ivanenko was born on July 29, 1904 in Poltava, where he finished school and began his creative path as a teacher of physics in middle school. In 1923 D. D. Ivanenko entered Petrograd University. In 1926, while still a student, he wrote his first scientific works: with G. A. Gamov on the Kaluza-Klein five-dimensional theory and with L. D. Landau on the problems of relativistic quantum mechanics .... "



Saturday, 14 December 2013

Program for International Student Assessment (PISA 2012). Results


PISA 2012 is program's 5th survey which assessed the competencies of 15-year-olds in reading, mathematics and science (with a focus on mathematics) in 65 countriesAround 510 000 students between the ages of 15 years 3 months and 16 years 2 months participated in the assessment, representing about 28 million 15-year-olds globally.

The students took a paper-based test that lasted 2 hours. The tests were a mixture of open-ended and multiple-choice questions that were organised in groups based on a passage setting out a real-life situation. A total of about 390 minutes of test items were covered.  Students took different combinations of different tests. They and their school principals also answered questionnaires to provide information about the students' backgrounds, schools and learning experiences and about the broader school system and learning environment.

The results are the following (#).

In Russian Federation  (#):
  • The average performance in reading of 15-year-olds is 475 points, compared to an average of 496 points in OECD countries (41-42nd position). Girls perform better than boys with a statistically significant difference of 40 points (OECD average: 38 points higher for girls).
  • On average, 15-year-olds score 482 points in mathematics, the main topic of PISA 2012, compared to an average of 494 points in OECD countries (34-35th position). Girls perform better than boys with a statistically significant difference of 2 points (OECD average: 11 points higher for boys).
  • In science literacy, 15-year-olds in the Russian Federation score 486 points compared to an average of 501 points in OECD countries (37th position). Girls perform better than boys with a non statistically significant difference of 6 points (OECD average: only 1 point higher for boys).



Friday, 6 December 2013

My lectures on Advanced Geometric Methods in Mechanics and Field Theory in arXiv:


The course of my lectures on Advanced Geometric Methods in Mechanics and Field Theory in arXiv:


Fibre bundles, jet manifolds and Lagrangian theory. Lectures for theoreticians arXiv: 0908.1886

Lectures on supergeometry arXiv: 0910.0092

Lectures on differential geometry of modules and rings arXiv: 0910.1515

Advanced mechanics. Mathematical introduction arXiv: 0911.0411

Lectures on integrable Hamiltonian systems arXiv: 1303.5363