User:XJaM

Born and live in Celje, Slovenia. For a short period I had studied physics and astronomy at the University of Ljubljana and after that I had changed the studies to mechanical engineering at the University of Maribor. At present I am CAD designer in a die (tool making) industry.

More extensive bio data and photo at my current homepage in Slovene: http://www.geocities.com/xjamrastafire
My contributions to Wikipedia in Slovene: http://sl.wikipedia.com
Indexed list of some personal initial (*) and other (°) contributions to the English Wikipedia: ** 1 **

Some of my interests in the English version of Wikipedia are listed bellow but, since I am participating in Wikipedia, I must say, my interests have grown to very high altitudes almost from nowhere-land.

Mathematics Graph theory Planar graphs Spectral analysis of graphs Ramsey's theorem Topology Peano axioms Hilbert's Hercules and hydra Absolute differencial calculus Tensor calculus Wave equations Vector spaces Hilbert space Noneuclidean geometries Mathematical group Group theory Number theory Greatest common divisor Primes Natural or integer factorization Prime number theorem Fermat's little theorem Pseudo-primes Carmichael numbers Semi Möbius prime (Möbius prime) Möbius problem Prime couples Möbius' arithmetical function μ(n) Ulam prime spiral Ulam - Möbius cloth Fermat's last theorem Perfect numbers Existence of odd perfect number Mersenne's numbers Lucas - Lehmer test Class number Irational semi Ramanujan constant R Number systems Number 0 Signs for numbers Ramsey's number R(m,n) Mathematical entities Rings Ring homomorphism Logarithmic integral Algebra Algebraic geometry Topological spaces Chain fractions Ramanujan chain fraction Integer sequences Selfgenerating sequences Recurent sequences Fibonacci sequence Fibonacci numbers Fibonacci quotients Lucas sequence Beatty sequences Wythoff sequences Grupoid integer sequences Cluster integer sequences Amel's analitical function μ1(n) Golden mean Golden mean number Binomial coefficient Catalan's constant Catalan numbers Catalan numbers sequence Hardy - Ramanujan taxi numbers Riemann hypothesis on zeroes of general Euler-Riemann function ζ(s) Ramanujan's 117th problem Goldbachs conjecture Ramanujan's function ø(a,n), ø(n) Ramanujan's functions φ(x) Cellular automata Turing machines Penrose 'Emperor's New Brain' Random number generators Randomness itself Algorithms Computer algorithms Data structures Programming languages C Kernighan and Ritchie's C aka Plain C Cfront C++ ++C Cyclone Objective C C# Languages on inverse LISP basis HP28C/S Maple computer algebra system AI Chaos theory General usage of Chaos Theory in astronomy Lorenz's butterfly efect El Niño effect Smale's 14th problem Arithmetical functions on plane Möbius arithmetical function μ(n) on plane Special constant 1Mλ for Siamese prime twins Feigenbaum constants α,δ Besicovitch - Hausdorff dimension d L-system Penrose tiling History of mathematics Ludolph transcendental number π Slovene mathematics Slovene mathematicians PlainTeX TeX METAFONT Literate programming Mathematics Mathematical constants CF sorting Physics Physical properties of water Newton general gravitational law Statics of rigid bodies Kinematics of rigid bodies Dynamics of rigid bodies Movement of rigid body around fixed point Precession Movement equations Hamiltonian principle Lagrangian function Bessel's functions Strength Theory of cold forming Deformations in matter Defects in atom meshes Physical mesurements Electromagnetic wave motion, light Laws of radiation of a black body Invariants and transformations Transformation groups Preservation laws Speed of light Celestial mechanics Funtamental particles of matter Physics on Planck length Gauss - Landau convolution Gödels Incompleteness Theorem in physics Physical Incompleteness Pauli exclusion principle Validity of physical theories Physics Physical constants

Astronomy Astrophysics Horizont astronomy Archaeoastronomy Sumerian and Chaldean astronomy Mayan astronomy Greek astronomy Arab astronomy History of astronomy Day Month Tropical year Year Calendars Proleptic Gregorian Calendar Tzol'kin Astronomical time Time periods Time cycles Solar system Lunar movement Stellar dynamics Galaxy Local group Planet perturbations Apparent movements of stars Distances in space Astrometry Astronomical instruments Optical astronomy Gravitational 'detectors' Physics of stars Black Holes Topological properties of black holes Singularities Hubble space telescope Astrodesy Problems of space flights Interstelar and intergalactical flights Astronautics Aviation Planetology, geoplanetology Slovene astronomy Cosmology Origin of the Universe Laic physical cosmology Creation miths Dogons Cosmogenesis Clasical General Theory of relativity as first cosmological model Theories of gravitation History of physical cosmology General Theory of relativity experiments Antropic principles Human place in the Universe Probability of existence of life in the Universe Penrose's probability 10^10^123 Measuremets of cosmological constants Mathematical theorems of physical cosmology Dark matter Origin of galaxies Linear and generalised Olbers paradox Redshift Cosmological time Space - (time) splitings (i.e. Everrett jr.,BTTF (Back to the future scenarios) (Fractal) Time wave function Properties of Time Slovene Cosmology Geography History Historical geography Planetology planet Earth (MELADMS Raa Sol 11) Central Europe Infinity Slovenia Timeline of Slovene history Etruscans Slovene Geography Celje Bled Carinthia Karantania Trst Celovec planet XYZT Earthlike planet Extrasolar planets Extraterrestrial life 'Ljuden's activity Nanastusixpopisimusixlesix People Mathematicians Louis de Branges de Bourcia Georg Ferdinand Cantor Jean Le Rond d'Alembert Julius Wilhelm Richard Dedekind Keith Devlin Leonhard Euler Martin Gardner Carl Friedrich Gauss Gerhard Gentzen Godfrey Harold Hardy France Križanič Ernst Eduard Kummer Aleksandr Mikhailovich Lyapunov Josip Plemelj Alphonse de Polignac Srinivasa Aaiyangar Ramanujan Roger Penrose Abraham Robinson Henry John Stephen Smith Gábor Szegö Jurij Vega Hermann Weyl Physicists Astrophysicists Cosmologists Fritjof Capra Brandon Carter Andrej Čatež Freeman John Dyson Paul Ehrenfest Albert Einstein Richard Phillips Feynman Mirjam Galičič Stephen Hawking Alojz Kodre Lev Davidovich Landau Igor Dmitrievich Novikov Giulio Racah Jožef Stefan Janez Strnad Igor Yevgenyevich Tamm Yakov Borisovich Zel'dovich George Zweig Astronomers Chalid Ben Abdulmelik Aristarchus Friedrich Wilhelm Bessel Nicolaus Copernicus Andrej Guštin Hipparchus Ali Ben Isa Ommar Khayyam Kidinu Naburimani Marijan Prosen - Majo Ulugh - beg Tomaž Zwitter Geographers Eratosthenes William Morris Davis Dicaearchus Anton Melik Rocket engineers Astronauts Cosmonauts Konstantin Eduardovitch Tsiolkovsky Hermann Julius Oberth Herman Potočnik Noordung Sergei Pavlovich Korolev Games Backgammon Conway's Game of Life Games/Strategy_and_Tactics Go Labyrinths Othello board games Reversi LEGO bones Grammar Slovenski jezik English language Русский язык Inuktitut language Etruscan language Sanskrit Grammatical number Dual number Polite form Miscellaneous Ras Tafari Roots Rock Reggae Birds Ornithology Whinchat Saxicola rubetra Siberian Husky Alaskian Husky Abyssinian domestic cat Spiders Train models Aircrafts Aircraft models CAD Codes Numbers Signs ASCII ISO 3166

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Note: anyone is free to find two non-existent terms in the above list. A reward is two dark ales at Smash's pub what is about 4€ (a meek variation of Paul Erdös' reward on Collatz conjecture: mathematics is not yet ready but its lovers are). In fact there are three ones, but the third one does not count...