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Neža Kogovšek Šalamon considers that there is no single, recognized definition of a pushback, but in general they can be characterized as "informal collective forced returns of people who irregularly enter the country back to the country they entered from, via procedures that take place outside legally defined rules in protocols or agreements signed by the neighbouring countries". [5]
In general, any measurable function can be pushed forward. The push-forward then becomes a linear operator, known as the transfer operator or Frobenius–Perron operator.In finite spaces this operator typically satisfies the requirements of the Frobenius–Perron theorem, and the maximal eigenvalue of the operator corresponds to the invariant measure.
In aviation, pushback is an airport procedure during which an aircraft is pushed backwards away from its parking position, usually at an airport gate by external power. [ 1 ] [ 2 ] Pushbacks are carried out by special, low-profile vehicles called pushback tractors or tugs .
Pushforward measure, measure induced on the target measure space by a measurable function; Pushout (category theory), the categorical dual of pullback; Direct image sheaf, the pushforward of a sheaf by a map; Fiberwise integral, the direct image of a differential form or cohomology by a smooth map, defined by "integration on the fibres"
for an arbitrary function () and an arbitrary derivation at point (a derivation is defined as a linear map: that satisfies the Leibniz rule, see: definition of tangent space via derivations). By definition, the pushforward of X {\displaystyle X} is in T φ ( x ) N {\displaystyle T_{\varphi (x)}N} and therefore itself is a derivation, d φ x ( X ...
The quadratic scoring rule is a strictly proper scoring rule (,) = = =where is the probability assigned to the correct answer and is the number of classes.. The Brier score, originally proposed by Glenn W. Brier in 1950, [4] can be obtained by an affine transform from the quadratic scoring rule.
When the pullback is studied as an operator acting on function spaces, it becomes a linear operator, and is known as the transpose or composition operator. Its adjoint is the push-forward, or, in the context of functional analysis, the transfer operator.
The progress toward degree rule, commonly referred to as the 40-60-80 rule, is a piece of National Collegiate Athletic Association (NCAA) legislation designed to increase retention and graduation rates of NCAA Division I student athletes. The legislation, that took effect for first time freshmen in 2003, states that by the beginning of the ...