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Topics referred to by the same term
In mathematics, Borel transform may refer to A transform used in Borel summation A generalization of this in Nachbin's theorem This disambiguation page
Borel_transform
Summation method for divergent series
({\boldsymbol {B}})} . This is similar to Borel's integral summation method, except that the Borel transform need not converge for all t, but converges
Borel_summation
Integral transform useful in probability theory, physics, and engineering
conditions for the Borel transform to be well defined. Since an ordinary Laplace transform can be written as a special case of a two-sided transform, and since
Laplace_transform
Theorem bounding the growth rate of analytic functions
theorem may be used to give the domain of convergence of the generalized Borel transform, also called Nachbin summation. This article provides a brief review
Nachbin's_theorem
Measure defined on all open sets of a topological space
regular Borel measure, and conversely every regular Borel measure on the real line is of this kind. One can define the Laplace transform of a finite Borel measure
Borel_measure
Divergence in perturbative quantum field theory
summed using Borel summation, the associated Borel transform of the series can have singularities as a function of the complex transform parameter. The
Renormalon
Mathematical transform that expresses a function of time as a function of frequency
convolution remains true for tempered distributions. The Fourier transform of a finite Borel measure μ on Rn, given by the bounded, uniformly continuous function:
Fourier_transform
Transformation of a mathematical sequence
{\overline {g}}(x)=(T{\overline {f}})(x)=e^{x}{\overline {f}}(-x).} The Borel transform will convert the ordinary generating function to the exponential generating
Binomial_transform
convergent at ∞ {\displaystyle \infty } . Formal Borel transform: The formal Borel transform (named after Émile Borel) is the operator B : z − 1 C [ [ z − 1 ]
Resurgent_function
Basic result in the representation theory of Lie groups
In mathematics, the Borel–Weil–Bott theorem is a basic result in the representation theory of Lie groups, showing how a family of representations can
Borel–Weil–Bott_theorem
French mathematician (born 1947)
étranger). "Resurgent functions" are divergent power series whose Borel transforms converge in a neighborhood of the origin and give rise, by means of
Jean_Écalle
is given as follows (Sansone & Gerretsen 1960). Suppose that the Borel transform B 1 y ( z ) {\displaystyle {\mathcal {B}}_{1}y(z)} converges to an
Mittag-Leffler_summation
Conditional probability paradox
In probability theory, the Borel–Kolmogorov paradox (sometimes known as Borel's paradox) is a paradox relating to conditional probability with respect
Borel–Kolmogorov_paradox
Branch of functional analysis
measures, and this is the Borel functional calculus. Alternatively, the continuous calculus can be obtained via the Gelfand transform, in the context of commutative
Borel_functional_calculus
holomorphic functions. List of transforms List of Fourier-related transforms Transfer operator Fredholm operator Borel transform Glossary of mathematical symbols
List_of_mathematic_operators
Theorem of Fourier transforms of Borel measures
for Salomon Bochner) characterizes the Fourier-Stieltjes transform of a positive finite Borel measure on the real line. More generally in harmonic analysis
Bochner's_theorem
Operation on formal power series
first integral formula corresponds to the Laplace transform (or sometimes the formal Laplace–Borel transformation) of generating functions, denoted by
Generating function transformation
Generating_function_transformation
Mathematical operation
Laplace transforms are closely related to the Fourier transform, the Mellin transform, the Z-transform and the ordinary or one-sided Laplace transform. If
Two-sided_Laplace_transform
Infinite series that diverges
the usual formula. The Borel sum of 1 − 2 + 4 − 8 + ⋯ is also 1/3; when Émile Borel introduced the limit formulation of Borel summation in 1896, this
1_−_2_+_4_−_8_+_⋯
Theory of stochastic processes
interval. The transformation is also known as Hotelling transform and eigenvector transform, and is closely related to principal component analysis (PCA)
Kosambi–Karhunen–Loève theorem
Kosambi–Karhunen–Loève_theorem
Rational function of the form (az + b)/(cz + d)
\mathbb {C} \right\};} this is an example of the unipotent radical of a Borel subgroup (of the Möbius group, or of SL(2, C) for the matrix group; the
Möbius_transformation
by Rajchman (1928), is a regular Borel measure on a locally compact group such as the circle, whose Fourier transform vanishes at infinity. Lyons, Russell
Rajchman_measure
Summation method for some divergent series
to or close to −1/z) this series converges to 1/1 − z. Binomial transform Borel summation Cesàro summation Lambert summation Perron's formula Abelian
Euler_summation
Duality for locally compact abelian groups
between locally compact abelian groups that allows generalizing Fourier transform to all such groups, which include the circle group (the multiplicative
Pontryagin_duality
Integral expressing the amount of overlap of one function as it is shifted over another
supported distribution (Hörmander 1983, §4.2). The convolution of any two Borel measures μ and ν of bounded variation is the measure μ ∗ ν {\displaystyle
Convolution
Type o integral transform in mathematics
extended to any locally compact Hausdorff space X equipped with a positive Borel measure. If L2(X) is separable, and k belongs to L2(X × X), then the operator
Hilbert–Schmidt integral operator
Hilbert–Schmidt_integral_operator
Mathematical function that preserves angles
inconvenient geometries. By choosing an appropriate mapping, the analyst can transform the inconvenient geometry into a much more convenient one. For example
Conformal_map
Decomposition of periodic functions
Fourier-Stieltjes transform. This follows from an earlier and more concrete representation of a Radon measure (i.e. a locally finite Borel measure) on R {\displaystyle
Fourier_series
Mathematical theorem
functions or in more abstract language, that it is the Laplace transform of a positive Borel measure on [0, ∞). In one important special case the mixture
Bernstein's theorem on monotone functions
Bernstein's_theorem_on_monotone_functions
Infinite series that is not convergent
explicit and natural techniques such as Abel summation, Cesàro summation and Borel summation, and their relationships. The advent of Wiener's tauberian theorem
Divergent_series
Ocean on the margin of Gondwana between the Middle Cambrian and Late Triassic
von Raumer & Borel 2002, Middle Devonian Phase, p. 272 Stampfli, von Raumer & Borel 2002, Fig. 3, pp. 268–629 Stampfli, von Raumer & Borel 2002, Hun Superterrane
Paleo-Tethys_Ocean
Mathematical concept
Dirichlet character and the Mellin transform of a modular form. They were introduced by Langlands (1967, 1970, 1971). Borel (1979) and Arthur & Gelbart (1991)
Automorphic_L-function
Study of geometric properties of sets through measure theory
_{K}(E):=\mu (G_{K}(E))} for any Borel set. This is the Gaussian curvature measure associated with K {\displaystyle K} . It is a Borel measure for any K {\displaystyle
Geometric_measure_theory
Branch of mathematics that studies abstract algebraic structures
JSTOR 1969129. Borel, Armand (2001), Essays in the History of Lie Groups and Algebraic Groups, American Mathematical Society, ISBN 978-0-8218-0288-5. Borel, Armand;
Representation_theory
capacity Disk algebra Univalent function Ahlfors theory Bieberbach conjecture Borel–Carathéodory theorem Corona theorem Hadamard three-circle theorem Hardy
List of complex analysis topics
List_of_complex_analysis_topics
Sigma algebra Separable sigma algebra Filtration (abstract algebra) Borel algebra Borel measure Indicator function Lebesgue measure Lebesgue integration
List of integration and measure theory topics
List_of_integration_and_measure_theory_topics
Representation theory
of the Borel subgroup of G corresponding to λ; these representations are irreducible and can all be realized on L2(U/T). The spherical transform of a U-biinvariant
Plancherel theorem for spherical functions
Plancherel_theorem_for_spherical_functions
Signal (re-)construction algorithm
from a sequence of real numbers. The formula dates back to the works of E. Borel in 1898, and E. T. Whittaker in 1915, and was cited from works of J. M.
Whittaker–Shannon interpolation formula
Whittaker–Shannon_interpolation_formula
Mathematical concept
isomorphic (in the category of Borel spaces) to the underlying Borel space of a complete separable metric space. Mackey called Borel spaces with this property
Spectrum_of_a_C*-algebra
Manifold with inversion symmetry
bounded domain is the Baily–Borel compactification of H*/K. The boundary structure can be described using Cayley transforms. For each copy of SU(2) defined
Hermitian_symmetric_space
Variable representing a random phenomenon
can be defined. Normally, a particular such sigma-algebra is used, the Borel σ-algebra, which allows for probabilities to be defined over any sets that
Random_variable
Matrix used in complex analysis
0}|b_{n}(w)|^{2}\leq (1-|w|^{2})^{-1}.} The Beurling transform (also called the Beurling-Ahlfors transform and the Hilbert transform in the complex plane) provides one
Grunsky_matrix
Degree of differentiability of a function or map
infinitely differentiable and analytic on that set. A theorem of Émile Borel states that every formal power series occurs as the Taylor series of some
Smoothness
Potential in mathematics
supported distribution. In this connection, the Riesz potential of a positive Borel measure μ with compact support is chiefly of interest in potential theory
Riesz_potential
Uniform distribution on an interval
sets more general than intervals. Formally, let S {\displaystyle S} be a Borel set of positive, finite Lebesgue measure λ ( S ) , {\displaystyle \lambda
Continuous uniform distribution
Continuous_uniform_distribution
Algorithm that generates an approximation of a random number sequence
the sigma-algebra of all Borel subsets of the real line) F {\displaystyle {\mathfrak {F}}} – a non-empty collection of Borel sets F ⊆ B {\displaystyle
Pseudorandom_number_generator
Probability problem
follows: given a sequence (m0, m1, m2, ...), does there exist a positive Borel measure μ (for instance, the measure determined by the cumulative distribution
Hamburger_moment_problem
{\displaystyle {\mathfrak {p}}} contains a maximal solvable subalgebra (a Borel subalgebra) of g {\displaystyle {\mathfrak {g}}} ; the orthogonal complement
Parabolic_Lie_algebra
Type of topological group in mathematics
one to define integrals of Borel measurable functions on G so that standard analysis notions such as the Fourier transform and L p {\displaystyle L^{p}}
Locally_compact_group
Linear map that preserves areas
to think of the squeeze mapping as a hyperbolic rotation, as did Émile Borel in 1914, by analogy with circular rotations, which preserve circles. The
Squeeze_mapping
Structure defining distance on a manifold
n-dimensional volume of subsets of the manifold. The resulting natural positive Borel measure allows one to develop a theory of integrating functions on the manifold
Metric_tensor
Geometry formula
Quillen's papers. An alternative name for the formula is Borel cohomology, after Armand Borel The localization theorem states that the equivariant cohomology
Localization formula for equivariant cohomology
Localization_formula_for_equivariant_cohomology
Theorems connecting continuity to closure of graphs
other spaces that occur in analysis are Souslin spaces. The Borel graph theorem states: Borel Graph Theorem—Let u : X → Y {\displaystyle u:X\to Y} be linear
Closed graph theorem (functional analysis)
Closed_graph_theorem_(functional_analysis)
Objects that generalize functions
a complete locally convex topological vector space satisfying the Heine–Borel property. This topology can be placed in the context of the following general
Distribution (mathematical analysis)
Distribution_(mathematical_analysis)
theorem (model theory) Barwise compactness theorem (mathematical logic) Borel determinacy theorem (set theory) Büchi-Elgot-Trakhtenbrot theorem (mathematical
List_of_theorems
Construction in group theory
projective spaces, where there is no natural notion of a projective linear transform. However, with the exception of the non-Desarguesian planes, all projective
Projective_linear_group
Technique in integral evaluation
means that ρ(φ(E)) = 0 whenever μ(E) = 0). Then there exists a real-valued Borel measurable function w on X such that for every Lebesgue integrable function
Integration_by_substitution
Sufficiency theorem for reconstructing signals from samples
first part of the theorem had been stated as early as 1897 by Borel. As we have seen, Borel also used around that time what became known as the cardinal
Nyquist–Shannon sampling theorem
Nyquist–Shannon_sampling_theorem
On distance sets of high-dimensional sets
{\displaystyle S} must have nonzero Lebesgue measure. Falconer (1985) proved that Borel sets with Hausdorff dimension greater than ( d + 1 ) / 2 {\displaystyle
Falconer's_conjecture
German mathematician (1892–1977)
Summabilitätstheorie der divergenten Reihen (transl. A new generalization of Borel summability theory of a divergent series). In 1921 he completed his habilitation
Gustav_Doetsch
Overview of and topical guide to probability
variables Borel's paradox (Related topics: integral transforms) Probability-generating functions Moment-generating functions Laplace transforms and Laplace–Stieltjes
Outline_of_probability
Mathematical set with some added structure
determined by the Borel σ-algebra; for example, the norm topology and the weak topology on a separable Hilbert space lead to the same Borel σ-algebra. Not
Space_(mathematics)
Mathematical term
algebraic group over an algebraically closed field. B {\displaystyle B} is a Borel subgroup of G {\displaystyle G} W {\displaystyle W} is a Weyl group of G
Bruhat_decomposition
Subject in mathematics
In topological vector spaces there exist three prominent σ-algebras: the Borel σ-algebra B ( X ) {\displaystyle {\mathcal {B}}(X)} : is generated by the
Measure theory in topological vector spaces
Measure_theory_in_topological_vector_spaces
Canadian public broadcaster
bond (which does not include an admission of guilt) and apologized to Borel. Borel was critical of the CBC for its handling of her initial complaint about
Canadian Broadcasting Corporation
Canadian_Broadcasting_Corporation
Set which cannot be assigned a meaningful "volume"
source of great controversy since its introduction. Historically, this led Borel and Kolmogorov to formulate probability theory on sets which are constrained
Non-measurable_set
Stochastic way of assigning quantities across a space
separable complete metric space and let E {\displaystyle {\mathcal {E}}} be its Borel σ {\displaystyle \sigma } -algebra. (The most common example of a separable
Random_measure
1976 Italian film
Annik Borel was cast as the werewolf, Daniella Neseri. Di Silvestro recalled seeing hundred of photos from international agents and when seeing Borel he
Werewolf_Woman
Type of operator in Fourier analysis
multiplier) if and only if there exists a finite Borel measure μ such that m is the Fourier transform of μ. (The "if" part is a simple calculation. The
Multiplier_(Fourier_analysis)
Infinite series summing alternating 1 and -1 terms
dx=-{\frac {1}{2}}\varphi (x)|_{0}^{\infty }={\frac {1}{2}}.\end{array}}} The Borel sum of Grandi's series is again 1⁄2, since 1 − x + x 2 2 ! − x 3 3 ! + x
Grandi's_series
Type of random mathematical object
definition, one first considers a bounded, open or closed (or more precisely, Borel measurable) region B {\textstyle B} of the plane. The number of points of
Poisson_point_process
Linear operator equal to its own adjoint
for both the spectral theorem and the Borel functional calculus. That is, if H is self-adjoint and f is a Borel function, f ( H ) = ∫ d E | Ψ E ⟩ f (
Self-adjoint_operator
Result about when a matrix can be diagonalized
subspace V E {\displaystyle V_{E}} of V {\displaystyle V} associated with a Borel set E ⊂ σ ( A ) {\displaystyle E\subset \sigma (A)} in the spectrum of A
Spectral_theorem
Construction in functional analysis, useful to solve differential equations
the continuous functional calculus to bounded Borel functions. For a bounded function g that is Borel measurable, define, for a proposed g(T) ∫ σ ( T
Decomposition of spectrum (functional analysis)
Decomposition_of_spectrum_(functional_analysis)
Unsolved problem in mathematics
1007/BF01455702. ISSN 0025-5831. S2CID 122378161. Borel, Armand; Casselman, W. (1979). "Multiplicity one theorems". In Borel, Armand; Casselman., W. (eds.). Automorphic
Ramanujan–Petersson conjecture
Ramanujan–Petersson_conjecture
subsequence) and the Heine–Borel theorem. Borel 1. A Borel measure is a measure whose domain is the Borel σ-algebra. 2. The Borel σ-algebra on a topological
Glossary of real and complex analysis
Glossary_of_real_and_complex_analysis
Type of mathematical space
algebraic group; the set of lower triangular matrices of determinant one is a Borel subgroup. If the field F is the real or complex numbers we can introduce
Generalized_flag_variety
Public secondary school in San Mateo, California, United States
Foster City. The main feeder schools to Hillsdale are Abbott, Bayside, Borel, and Bowditch Middle Schools of the San Mateo-Foster City School District
Hillsdale High School (San Mateo, California)
Hillsdale_High_School_(San_Mateo,_California)
Cesàro summation Euler summation Lambert summation Borel summation Summation by parts – transforms the summation of products of into other summations
List_of_real_analysis_topics
Polynomial related to differential operators
Severino Coutinho (1995) gives an elementary introduction, while Armand Borel (1987) and Masaki Kashiwara (2003) give more advanced accounts. If f ( x
Bernstein–Sato_polynomial
Second-order partial differential equation
is equal to 1 {\displaystyle 1} , so the transform reduces to composition with inversion. The Kelvin transform is useful for converting interior problems
Laplace's_equation
Fictional character
actor Matt Borel, a familiar face from New Orleans area theater and television commercials. Although he gave up acting in the late '90s, Borel went on to
Morgus_the_Magnificent
Infinite series with alternating signs
would not arrive until much later. Starting in 1890, Ernesto Cesàro, Émile Borel and others investigated well-defined methods to assign generalized sums
1_−_2_+_3_−_4_+_⋯
Property of functions which is weaker than continuity
x ) ≥ α } {\displaystyle \{x:f(x)\geq \alpha \}} are closed (and hence Borel in a Polish space). A central example is the rank function on well-founded
Semi-continuity
numbers Kolmogorov's two-series theorem Random field Conditional random field Borel–Cantelli lemma Wick product Conditioning (probability) Conditional expectation
List_of_probability_topics
Theory of logic to account for observations from quantum theory
is a projection-valued measure E defined on the Borel subsets of R. In particular, for any bounded Borel function f on R, the following extension of f to
Quantum_logic
Average value of a random variable
{\displaystyle \operatorname {P} (X\in A)=\int _{A}f(x)\,dx,} for any Borel set A {\displaystyle A} , in which the integral is Lebesgue. the cumulative
Expected_value
Inputs for which a function's value is non-zero
indeed compact. If X {\displaystyle X} is a topological measure space with a Borel measure μ {\displaystyle \mu } (such as R n , {\displaystyle \mathbb {R}
Support_(mathematics)
and Rolf Ebert Borel algebra, measure, set, space, summation, Borel's lemma, paradox – Émile Borel Borel–Cantelli lemma – Émile Borel and Francesco Paolo
Scientific phenomena named after people
Scientific_phenomena_named_after_people
convergence. Abel summation Cesàro summation Lindelöf summation Euler summation Borel summation Mittag-Leffler summation Lambert summation Euler–Boole summation
Antilimit
Mathematical theorem
measure on [a, b] is replaced by a finite countably additive measure μ on the Borel algebra of X whose support is X. This means that μ(U) > 0 for any nonempty
Mercer's_theorem
Series of functions in mathematics
the superasymptotic error, e.g. by employing resummation methods such as Borel resummation to the divergent tail. Such methods are often referred to as
Asymptotic_expansion
Linear operator
used to specify systems of orthonormal polynomials over a finite, positive Borel measure. This operator is named after Carl Gustav Jacob Jacobi. The name
Jacobi_operator
Type of complex function with growth bounded by an exponential function
it is possible to apply techniques such as Borel summation, or, for example, to apply the Mellin transform, or to perform approximations using the Euler–Maclaurin
Exponential_type
Surjective bounded operator on a Hilbert space preserving the inner product
operators. By the theorem, U is unitarily equivalent to multiplication by a Borel-measurable f on L2(μ), for some finite measure space (X, μ). Now UU* = I
Unitary_operator
Description of continuous random distribution
{\mathcal {A}})} (usually R n {\displaystyle \mathbb {R} ^{n}} with the Borel sets as measurable subsets) has as probability distribution the pushforward
Probability_density_function
Field of knowledge
they think of and talk of their objects of study as real objects. Armand Borel summarized this view of mathematics reality as follows, and provided quotations
Mathematics
Israeli digital forensics company
State opened an investigation into the mysterious death of 4-year-old Henry Borel. The boy's stepfather Jairinho and his mother Monique Medeiros were arrested
Cellebrite
Italian footballer (born 1978)
17 June 2021. Retrieved 9 May 2016. "Euro 2012: Juventus renaissance transforms Cesare Prandelli's Italy". The Guardian. 27 June 2012. Archived from the
Gianluigi_Buffon
Canadian comedy television series
Pelletier, Jeff (January 10, 2024). "Curling ice melts as Iqaluit rink transforms into TV studio". Nunatsiaq News. Nestruck, J. Kelly (January 7, 2025)
North_of_North
BOREL TRANSFORM
BOREL TRANSFORM
Boy/Male
English
The fictional character Jorel father of Superman.
Boy/Male
English
The fictional character Jorel father of Superman.
Boy/Male
American, Australian, British, English, French
Mighty Spearman; The Fictional Character Jorel Father of Superman
Surname or Lastname
English, Scottish, and northern Irish
English, Scottish, and northern Irish : probably a metonymic occupational name for someone who made or sold coarse woolen cloth, Middle English burel or borel (from Old French burel, a diminutive of b(o)ure); the same word was used adjectively in the sense ‘reddish brown’ and may have been applied as a nickname referring to dress or complexion. Compare Borel.
Boy/Male
English
Modern. The fictional character Jorel father of Superman.
Boy/Male
American, British, English
Mighty Spearman; The Fictional Character Jorel Father of Superman
Boy/Male
German, Russian, Slavic
Eagle; Golden
Boy/Male
Arabic
The lightning. Al Borak was the legenday magical horse that bore Muhammad from earth to the...
Surname or Lastname
English
English : occupational name for one whose job was to bore holes in something, Middle English borer.Swiss German : variant of Bohrer.
Boy/Male
English
The fictional character Jorel father of Superman.
Boy/Male
Russian Slavic
Eagle.
Boy/Male
Latin
Swarthy.
Boy/Male
Australian, Finnish, Swedish
Fight; Battle
Boy/Male
French
Reddish brown hair.
Boy/Male
American, British, English
Mighty Spearman; One who Saves; The Fictional Character Jorel Father of Superman
Boy/Male
Arabic
The Lightning; Al Borak was the Legendary Magical Horse that Bore Muhammad from Earth to the Seventh Heaven
Boy/Male
French
Reddish brown haired.
Boy/Male
American, Australian, British, Danish, English, Finnish, French, German, Scandinavian
Farmer; The Fictional Character Jorel Father of Superman; Earth Worker
Boy/Male
Latin
referring to the mythological Greek god of trees. A number of saints bore the name.
Surname or Lastname
English
English : variant of Burrell.
BOREL TRANSFORM
BOREL TRANSFORM
Boy/Male
Hindu
King
Boy/Male
Gaelic
Son of the steward.
Girl/Female
Australian, Hebrew, Welsh
Prosperity; Richness; Abundance
Surname or Lastname
English (Yorkshire and Lancashire)
English (Yorkshire and Lancashire) : from the Middle English personal name Bawcok or Bolcok, a pet form of Baldwin + the hypocoristic suffix -cok (see Cocke).
Boy/Male
Arabic, Muslim
Prophet of Mercy
Biblical
the gift of the Lord
Girl/Female
Indian
Success, Fulfilment, Money and good luck
Boy/Male
Tamil
Sai Anand | ஸாஇ ஆநஂதÂ
Flower
Boy/Male
Tamil
Devender | தேவேநà¯à®¤à®°
God
Boy/Male
Arabic, Muslim
Fragrance; Unique; One in Many
BOREL TRANSFORM
BOREL TRANSFORM
BOREL TRANSFORM
BOREL TRANSFORM
BOREL TRANSFORM
v. t.
To form or enlarge by means of a boring instrument or apparatus; as, to bore a steam cylinder or a gun barrel; to bore a hole.
imp. & p. p.
of Bore
v. i.
To be pierced or penetrated by an instrument that cuts as it turns; as, this timber does not bore well, or is hard to bore.
v. t.
To bind with a forel.
n. & a.
Same as Borrel.
n.
Any bivalve mollusk (Saxicava, Lithodomus, etc.) which bores into limestone and similar substances.
n.
See Borrel.
n.
One that bores; an instrument for boring.
n.
The borele.
v. t.
To make (a passage) by laborious effort, as in boring; as, to bore one's way through a crowd; to force a narrow and difficult passage through.
v. t.
To perforate or penetrate, as a solid body, by turning an auger, gimlet, drill, or other instrument; to make a round hole in or through; to pierce; as, to bore a plank.
n.
The borele.
n.
The realm of bores; bores, collectively.
p. pr. & vb. n.
of Bowel
n.
One of the larvae of many species of insects, which penetrate trees, as the apple, peach, pine, etc. See Apple borer, under Apple.
imp. & p. p.
of Bowel
a.
Northern; pertaining to the north, or to the north wind; as, a boreal bird; a boreal blast.
v. i.
To make a hole or perforation with, or as with, a boring instrument; to cut a circular hole by the rotary motion of a tool; as, to bore for water or oil (i. e., to sink a well by boring for water or oil); to bore with a gimlet; to bore into a tree (as insects).