U+1D53E "𝔾" Mathematical Double-Struck Capital G Unicode Character

U+1D53E "𝔾" Mathematical Double-Struck Capital G is part of the Mathematical Alphanumeric Symbols block, specifically designed for use in mathematical and scientific notation. It belongs to the double-struck or blackboard bold style, a typographic convention often employed to denote special number sets or algebraic structures. In particular, this character is commonly used to represent the additive group of integers, the set of Gaussian integers, or a generic algebraic group G, especially in fields like abstract algebra and number theory. Its appearance mimics a bold capital G with a double outline, allowing it to stand out clearly in complex mathematical expressions without interfering with standard italic or roman lettering.

General Properties

Code Point	U+1D53E
Version Added	3.1
Name	Mathematical Double-Struck Capital G
Block	Mathematical Alphanumeric Symbols
General Category	Uppercase Letter
Canonical Combining Class	Not Reordered
Bidirectional Class	Left To Right
Decomposition Type	Font
Decomposition Mapping	"G" U+0047 Latin Capital Letter G

Encodings

HTML Decimal Encoding	𝔾
HTML Hex Encoding	𝔾
UTF-8 Encoding	0xF0 0x9D 0x94 0xBE
UTF-16 Encoding	0xD835 0xDD3E
UTF-32 Encoding	0x0001D53E
C/C++/Java Escape	\ud835\udd3e

Unicode Properties

NFC Quick Check	Yes
NFD Quick Check	Yes
Numeric Type	None
Numeric Value	NaN
Line Break	Alphabetic
Uppercase	Yes
Cased	Yes
Changes When NFKC Casefolded	Yes
NFKC Casefold	"g" U+0067 Latin Small Letter G
NFKC Simple Casefold	"g" U+0067 Latin Small Letter G
Script	Common
Script Extensions	Common
Indic Syllabic Category	Other
ID Start	Yes
XID Start	Yes
ID Continue	Yes
XID Continue	Yes
Alphabetic	Yes
Math	Yes
Other Math	Yes
Vertical Orientation	Rotated
Grapheme Base	Yes
Grapheme Cluster Break	Other
Word Break	Alphabetic letter
Sentence Break	Upper