Hellman, Olavi

name

• Hellman, Olavi

Authored works

• A certain heat flow problem
• A certain stochastic heat flow problem
• A classical nonlinear field theory predicting masses of neutral and charged elementary particles with zero spin
• A combined dynamic population and employment model
• A criterium for the stability of a neutral zero spin particle predicted by a classical nonlinear field theory
• A mathematical model for a forest
• A mathematical model for a forest consisting of a single species of trees of non-shade-tolerant kind
• A mathematical model for the process of assuming a political control of a system of education
• A model for the reorganization of the technological structure of a branch of industry
• A one-sector dynamic model of the economy of a country
• A proposed elementary particle theory based on interacting classical fields
• A searching game
• A special problem of compressible fluid flow in ducts with friction and heat addition
• A special problem of large scale forest management
• An approximate theory of a rapidly rotating windmill
• An ecologically advantageous forest harvesting model
• Beiträge zur allgemeinen Schalentheorie mit besonderer Berücksichtigung der Randstörungen und der flachen Schalen
• Covariant Dirac and Klein-Gordon difference equations
• Ilmavoimien varusmiesohjaaja- ja lentokadettikurssilla menestymisen ennustamisesta : sotilasohjaajan ammattianalyysi ja valintajärjestelmän kehittämismahdollisuuksien selvitys
• On the calculation of an optimal windmill rotor
• On the estimation of the total volume of a given number of bundles of logs
• On the integration of the equations of the theory of Krutov and Pospelov
• On the optimal allocation of funds for pure research and for applied research
• On the optimal control of the growth of a forest by using a mathematical model which is solvable in a closed form
• On the optimal control of the growth of a forest in a special case
• On the optimal control of the growth of forest which consists of several species of trees
• On the Schrödinger eigenvalue problem : 1
• On the solution of the one dimensional Schrödinger equation in case of a potential well
• The change of the state of the coolant gas in certain gas cooled reactors
• The temperature distribution in a gas cooled reactor of special form
• Two models for a process of propaganda where the object is alarge group of people
• Vvedenie v teoriju optimal'nogo poiska

Works contributed to

• A system analysis of a small open economy which takes into account the influence of the banking system
• Multiobjective analysis of the long-term development of a national economy
• On the numerical calculation of the autocovariance function
• The economic growth under reconstruction and innovations

Works about Hellman, Olavi

• Kutsu kuulemaan sitä julkista esitelmää, jonka Turun yliopiston matematiikan toinen professori, tekniikan tohtori Olavi Bertel Hellman pitää virkaanastujaisissaan marraskuun 8. p:nä 1961 klo 18
• Studies in honour of Olavi Bertel Hellman on the occasion of his fiftieth birthday March 5, 1978