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  2. Indexation of contracts - Wikipedia

    en.wikipedia.org/wiki/Indexation_of_contracts

    In statistics relating to national economies, the indexation of contracts also called "index linking" and "contract escalation" is a procedure when a contract includes a periodic adjustment to the prices paid for the contract provisions based on the level of a nominated price index. The purpose of indexation is to readjust contracts to account ...

  3. Raising and lowering indices - Wikipedia

    en.wikipedia.org/wiki/Raising_and_lowering_indices

    It is common convention to use greek indices when writing expressions involving tensors in Minkowski space, while Latin indices are reserved for Euclidean space. Well-formulated expressions are constrained by the rules of Einstein summation: any index may appear at most twice and furthermore a raised index must contract with a lowered index ...

  4. Polytropic process - Wikipedia

    en.wikipedia.org/wiki/Polytropic_process

    where p is the pressure, V is volume, n is the polytropic index, and C is a constant. The polytropic process equation describes expansion and compression processes which include heat transfer. The polytropic process equation describes expansion and compression processes which include heat transfer.

  5. Cosmic inflation - Wikipedia

    en.wikipedia.org/wiki/Cosmic_inflation

    The spatial slices are expanding very fast to cover huge volumes. Things are constantly moving beyond the cosmological horizon, which is a fixed distance away, and everything becomes homogeneous. As the inflationary field slowly relaxes to the vacuum, the cosmological constant goes to zero and space begins to expand normally.

  6. Binomial theorem - Wikipedia

    en.wikipedia.org/wiki/Binomial_theorem

    In elementary algebra, the binomial theorem (or binomial expansion) describes the algebraic expansion of powers of a binomial.According to the theorem, the power ⁠ (+) ⁠ expands into a polynomial with terms of the form ⁠ ⁠, where the exponents ⁠ ⁠ and ⁠ ⁠ are nonnegative integers satisfying ⁠ + = ⁠ and the coefficient ⁠ ⁠ of each term is a specific positive integer ...

  7. Parkinson's law - Wikipedia

    en.wikipedia.org/wiki/Parkinson's_law

    The first-referenced meaning of the law – "Work expands to fill the available time" – has sprouted several corollaries, the best known being the Stock-Sanford corollary to Parkinson's law: If you wait until the last minute, it only takes a minute to do. [2] the Asimov corollary to Parkinson's law:

  8. Law of increasing costs - Wikipedia

    en.wikipedia.org/wiki/Law_of_increasing_costs

    The law also applies to switching production in a maxed out economy. Essentially, the economy is still producing more, so the law still applies. The only difference is that resources are being taken from one area and applied to another, instead of simply producing more of the same (as assumed in the first paragraph) [1]

  9. Hubble's law - Wikipedia

    en.wikipedia.org/wiki/Hubble's_law

    The mathematical derivation of an idealized Hubble's law for a uniformly expanding universe is a fairly elementary theorem of geometry in 3-dimensional Cartesian/Newtonian coordinate space, which, considered as a metric space, is entirely homogeneous and isotropic (properties do not vary with location or direction). Simply stated, the theorem ...