Solutions to Cosmological Problems with Energy Conservation and Varying   c, G and Lambda
  The flatness and cosmological constant problems are solved with varying speed of light c, gravitational coupling strength G and cosmological parameter Lambda, by explicitly assuming energy conservation of observed matter. The present solution to the flatness problem is the same as the previous solution in which energy conservation was absent. 
P.Gopakumar and G.V.Vijayagovindan (Mahatma Gandhi University)