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  2. T wave - Wikipedia

    en.wikipedia.org/wiki/T_wave

    The last half of the T wave is referred to as the relative refractory period or vulnerable period. The T wave contains more information than the QT interval. The T wave can be described by its symmetry, skewness, slope of ascending and descending limbs, amplitude and subintervals like the T peak –T end interval. [1] In most leads, the T wave ...

  3. Momentum operator - Wikipedia

    en.wikipedia.org/wiki/Momentum_operator

    Since the partial derivative is a linear operator, the momentum operator is also linear, and because any wave function can be expressed as a superposition of other states, when this momentum operator acts on the entire superimposed wave, it yields the momentum eigenvalues for each plane wave component. These new components then superimpose to ...

  4. Transverse wave - Wikipedia

    en.wikipedia.org/wiki/Transverse_wave

    In seismology, shear waves are also called secondary waves or S-waves. Transverse waves are contrasted with longitudinal waves , where the oscillations occur in the direction of the wave. The standard example of a longitudinal wave is a sound wave or "pressure wave" in gases, liquids, or solids, whose oscillations cause compression and ...

  5. Transpose - Wikipedia

    en.wikipedia.org/wiki/Transpose

    If A is an m × n matrix and A T is its transpose, then the result of matrix multiplication with these two matrices gives two square matrices: A A T is m × m and A T A is n × n. Furthermore, these products are symmetric matrices. Indeed, the matrix product A A T has entries that are the inner product of a row of A with a column of A T.

  6. Bra–ket notation - Wikipedia

    en.wikipedia.org/wiki/Bra–ket_notation

    Bra–ket notation, also called Dirac notation, is a notation for linear algebra and linear operators on complex vector spaces together with their dual space both in the finite-dimensional and infinite-dimensional case.

  7. Transposition - Wikipedia

    en.wikipedia.org/wiki/Transposition

    Transposition, producing the transpose of a matrix A T, which is computed by swapping columns for rows in the matrix A; Transpose of a linear map; Transposition (logic), a rule of replacement in philosophical logic; Transpose relation, another name for converse relation

  8. Dual space - Wikipedia

    en.wikipedia.org/wiki/Dual_space

    When T is a compact linear map between two Banach spaces V and W, then the transpose T′ is compact. This can be proved using the Arzelà–Ascoli theorem. When V is a Hilbert space, there is an antilinear isomorphism i V from V onto its continuous dual V′. For every bounded linear map T on V, the transpose and the adjoint operators are ...

  9. T-wave - Wikipedia

    en.wikipedia.org/wiki/T-wave

    The term T-wave may refer to: T wave, a portion of the recording of a heartbeat in an electrocardiogram; Terahertz radiation, electromagnetic radiation in the microwave band; T wave (seismic), a form of seismic wave