Ad
related to: two sided word
Search results
Results From The WOW.Com Content Network
In other words, if its normal bundle is trivial. [1] This means, for example that a curve in a surface is 2-sided if it has a tubular neighborhood which is a cartesian product of the curve times an interval. A submanifold which is not 2-sided is called 1-sided.
Animation of a half-turn ambigram of the word ambigram, with 180-degree rotational symmetry [1]. An ambigram is a calligraphic composition of glyphs (letters, numbers, symbols or other shapes) that can yield different meanings depending on the orientation of observation.
These segments are called its edges or sides, and the points where two of the edges meet are the polygon's vertices (singular: vertex) or corners. The word polygon comes from Late Latin polygōnum (a noun), from Greek πολύγωνον ( polygōnon/polugōnon ), noun use of neuter of πολύγωνος ( polygōnos/polugōnos , the masculine ...
Not all impression of two-sided flags are de facto two-sided because of practical manufacturing constraints or, judging from how often it was disregarded in practice, some formal concern of heraldic nature. As such it may very well be prescribed legally from the very beginning and ever ignored in practice by institutions of every type.
In numismatics, the abbreviation obv. is used for obverse, [1] while ℞, [1])([2] and rev. [3] are used for reverse. Vexillologists use the symbols "normal" for the obverse and "reverse" for the reverse. The "two-sided" , "mirror" , and "equal" symbols are further used to describe the relationship between the obverse and reverse sides of a flag.
A two-sided ideal is a left ideal that is also a right ideal, and is sometimes simply called an ideal. When is a commutative monoid object respectively, the definitions of left, right, and two-sided ideal coincide, and the term ideal is used alone. An ideal can also be thought of as a specific type of R-module.
This is a list of two-dimensional geometric shapes in Euclidean and other geometries. For mathematical objects in more dimensions, see list of mathematical shapes. For a broader scope, see list of shapes.
Minoan gold votive double axe or labrys, less than 4 inches tall. On the left blade is an inscription in undeciphered Linear A; posssibly an invocation to the goddess Demeter. [1] [2] Labrys (Greek: λάβρυς, romanized: lábrys) is, according to Plutarch (Quaestiones Graecae 2.302a), the Lydian word for the double-bitted axe.